PIC16F193X/LF193X Data Sheet 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers wtih LCD Driver and nanoWatt XLP Technology 2009 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature.
PIC16F193X/LF193X 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver with nanoWatt XLP Technology Devices Included In This Data Sheet: PIC16LF193X Low-Power Features: PIC16F193X Devices: • Standby Current: - 60 nA @ 1.8V, typical • Operating Current: - 7.0 A @ 32 kHz, 1.8V, typical (PIC16LF193X) - 150 A @ 1 MHz, 1.8V, typical (PIC16LF193X) • Timer1 Oscillator Current: - 600 nA @ 32 kHz, 1.8V, typical • Low-Power Watchdog Timer Current: - 500 nA @ 1.
PIC16F193X/LF193X Peripheral Features (Continued): • Master Synchronous Serial Port (MSSP) with SPI and I2 CTM with: - 7-bit address masking - SMBUS/PMBUSTM compatibility - Auto-wake-up on start • Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) - RS-232, RS-485 and LIN compatible - Auto-Baud Detect • SR Latch (555 Timer): - Multiple Set/Reset input options - Emulates 555 Timer applications • 2 Comparators: - Rail-to-rail inputs/outputs - Power mode control - Software enable hystere
PIC16F193X/LF193X Pin Diagram – 28-Pin SPDIP/SOIC/SSOP (PIC16F1933/1936/1938, PIC16LF1933/1936/1938) 28-pin SPDIP, SOIC, SSOP RB7/ICSPDAT/ICDDAT/SEG13 SEG12/VCAP /SS /SRNQ /C2OUT /C12IN0-/AN0/RA0 2 RB6/ICSPCLK/ICDCLK/SEG14 SEG7/C12IN1-/AN1/RA1 3 26 RB5/AN13/CPS5/P2B(1)/CCP3(1)/P3A(1)/T1G(1)/COM1 COM2/DACOUT/VREF-/C2IN+/AN2/RA2 4 25 SEG15/COM3/VREF+/C1IN+/AN3/RA3 5 24 RB4/AN11/CPS4/P1D/COM0 RB3/AN9/C12IN2-/CPS3/CCP2(1)/P2A(1)/VLCD3 SEG4/CCP5/SRQ/T0CKI/CPS6/C1OUT/RA4 6 23 RB2/AN8/CPS2/P1B/V
PIC16F193X/LF193X 28 27 26 25 24 23 22 RA1/AN1/C12IN1-/SEG7 RA0/AN0/C12IN0-/C2OUT(1)/SRNQ(1)/SS(1)/VCAP(2)/SEG12 28-pin QFN/UQFN RE3/MCLR/VPP RB7/ICSPDAT/ICDDAT/SEG13 RB6/ICSPCLK/ICDCLK/SEG14 RB5/AN13/CPS5/P2B(1)/CCP3(1)/P3A(1)/T1G(1)/COM1 RB4/AN11/CPS4/P1D/COM0 Pin Diagram – 28-Pin QFN/UQFN (PIC16F1933/1936/1938, PIC16LF1933/1936/1938) 1 21 2 20 3 PIC16F1933/1936/1938 19 4 PIC16LF1933/1936/1938 18 5 17 6 16 7 15 RB3/AN9/C12IN2-/CPS3/CCP2(1)/P2A(1)/VLCD3 RB2/AN8/CPS2/P1B/VLCD2 RB1/AN10/C12IN3-/CPS1/P
PIC16F193X/LF193X — C12IN1- AN2/ VREF- — C2IN+/ DACOUT Y AN3/ VREF+ — C1IN+ — — — — — — — — — — — — — Basic AN1 Y — Pull-up Y — Interrupt 2 SRNQ(1) LCD 5 C12IN0-/ C2OUT(1) SEG12 — — VCAP(2) — SEG7 — — — — COM2 — — — — SEG15/ COM3 — — — MSSP RA3 — EUSART 1 AN0 CCP 28 4 Y Timers 3 RA2 SR Latch RA1 Comparator 27 Cap Sense 2 A/D 28-Pin QFN/UQFN RA0 ANSEL 28-Pin SIP 28-PIN SUMMARY (PIC16F1933/1936/1938, PIC16LF1933/1936/1938) I/O TA
PIC16F193X/LF193X Pin Diagram – 40-Pin PDIP (PIC16F1934/1937/1939, PIC16LF1934/1937/1939) 40-Pin PDIP VPP/MCLR/RE3 1 40 RB7/ICSPDAT/ICDDAT/SEG13 SEG12/VCAP(2)/SS(1)/SRNQ(1)/C2OUT(1)/C12IN0-/AN0/RA0 2 39 RB6/ICSPCLK/ICDCLK/SEG14 SEG7/C12IN1-/AN1/RA1 3 38 RB5/AN13/CPS5/CCP3(1)/P3A(1)/T1G(1)/COM1 COM2/DACOUT/VREF-/C2IN+/AN2/RA2 4 37 RB4/AN11/CPS4/COM0 SEG15/VREF+/C1IN+/AN3/RA3 5 36 RB3/AN9/C12IN2-/CPS3/CCP2(1)/P2A(1)/VLCD3 6 35 RB2/AN8/CPS2/VLCD2 7 34 RB1/AN10/C12IN3-/CPS1/VLCD1 SEG2
PIC16F193X/LF193X Pin Diagram – 44-Pin QFN (PIC16F1934/1937/1939, PIC16LF1934/1937/1939) 12 13 14 15 16 17 18 19 20 21 22 1 33 2 32 3 31 4 30 5 PIC16F1934/1937/1939 29 6 PIC16LF1934/1937/1939 28 7 27 8 26 9 25 10 24 11 23 RA6/OSC2/CLKOUT/VCAP(2)/SEG1 RA7/OSC1/CLKIN/SEG2 VSS VSS NC VDD RE2/AN7/CCP5/SEG23 RE1/AN6/P3B/SEG22 RE0/AN5/CCP3(1)/P3A(1)/SEG21 RA5/AN4/C2OUT(1)/CPS7/SRNQ(1)/SS(1)/VCAP(2)/SEG5 RA4/C1OUT/CPS6/T0CKI/SRQ/SEG4 VLCD3/P2A(1)/CCP2(1)/CPS3/C12IN2-/AN9/RB3 NC COM0/CPS4/AN11/RB4 COM1/T1G(1)/P
PIC16F193X/LF193X Pin Diagram – 44-Pin TQFP (PIC16F1934/1937/1939, PIC16LF1934/1937/1939) 33 32 31 30 29 28 27 26 25 24 23 12 13 14 15 16 17 18 19 20 21 22 1 2 3 4 5 PIC16F1934/1937/1939 6 PIC16LF1934/1937/1939 7 8 9 10 11 NC RC0/T1OSO/T1CKI/P2B(1) RA6/OSC2/CLKOUT/VCAP(2)/SEG1 RA7/OSC1/CLKIN/SEG2 VSS VDD RE2/AN7/CCP5/SEG23 RE1/AN6/P3B/SEG22 RE0/AN5/CCP3(1)/P3A(1)/SEG21 RA5/AN4/C2OUT(1)/CPS7/SRNQ(1)/SS(1)/VCAP(2)/SEG5 RA4/C1OUT/CPS6/T0CKI/SRQ/SEG4 NC NC COM0/CPS4/AN11/RB4 (1)/P3A(1)/CCP3(1)/CPS5/AN13/RB
PIC16F193X/LF193X RA3 5 22 22 Y — C12IN1- — C2IN+/ DACOUT AN3/ VREF+ — C1IN+ EUSART AN1 AN2/ VREF- CCP Y Y Timers SRNQ(1) — — — — — — — — — — — — — — — Basic 21 C12IN0-/ C2OUT(1) Pull-up 20 21 — Interrupt 20 4 AN0 LCD 3 RA2 Y SEG12 — — VCAP — SEG7 — — — — COM2 — — — — SEG15 — — — MSSP RA1 SR Latch 19 Comparator 19 Cap Sense 44-Pin QFN 2 A/D 44-Pin TQFP RA0 ANSEL 40-Pin PDIP 40/44-PIN SUMMARY(PIC16F1934/1937/1939, PIC16LF1934/1
PIC16F193X/LF193X Table of Contents 1.0 Device Overview ........................................................................................................................................................................ 15 2.0 Enhanced Mid-Range CPU ........................................................................................................................................................ 23 3.0 Memory Organization .............................................................................
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PIC16F193X/LF193X NOTES: DS41364D-page 14 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 1.0 DEVICE OVERVIEW The PIC16F193X/LF193X are described within this data sheet. They are available in 28/40/44-pin packages. Figure 1-1 shows a block diagram of the PIC16F193X/LF193X devices. Table 1-2 shows the pinout descriptions. Reference Table 1-1 for peripherals available per device.
PIC16F193X/LF193X FIGURE 1-1: PIC16F193X/LF193X BLOCK DIAGRAM Program Flash Memory EEPROM RAM PORTA OSC2/CLKO Timing Generation OSC1/CLKI PORTB CPU INTRC Oscillator Figure 2-1 PORTC MCLR PORTD SR Latch ADC 10-Bit Timer0 Timer1 Timer2 Timer4 Timer6 Comparators LCD ECCP1 ECCP2 ECCP3 CCP4 CCP5 MSSP EUSART Note 1: DS41364D-page 16 PORTE See applicable chapters for more information on peripherals. Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X TABLE 1-2: PIC16F193X/LF193X PINOUT DESCRIPTION Name RA0/AN0/C12IN0-/C2OUT(1)/ SRNQ(1)/SS(1)/VCAP(2)/SEG12 RA1/AN1/C12IN1-/SEG7 RA2/AN2/C2IN+/VREF-/ DACOUT/COM2 RA3/AN3/C1IN+/VREF+/ COM3(3)/SEG15 RA4/C1OUT/CPS6/T0CKI/SRQ/ CCP5/SEG4 RA5/AN4/C2OUT(1)/CPS7/ SRNQ(1)/SS(1)/VCAP(2)/SEG5 Function Input Type Output Type RA0 TTL AN0 AN C12IN0- AN C2OUT — CMOS Comparator C2 output. SRNQ — CMOS SR Latch inverting output. SS ST — Description CMOS General purpose I/O.
PIC16F193X/LF193X TABLE 1-2: PIC16F193X/LF193X PINOUT DESCRIPTION (CONTINUED) Name RA6/OSC2/CLKOUT/VCAP(2)/ SEG1 RA7/OSC1/CLKIN/SEG2 RB0/AN12/CPS0/CCP4/SRI/INT/ SEG0 RB1/AN10/C12IN3-/CPS1/P1C/ VLCD1 RB2/AN8/CPS2/P1B/VLCD2 RB3/AN9/C12IN2-/CPS3/ CCP2(1)/P2A(1)/VLCD3 Function Input Type RA6 TTL Output Type Description CMOS General purpose I/O. OSC2 — CLKOUT — XTAL VCAP Power Power SEG1 — AN Crystal/Resonator (LP, XT, HS modes). CMOS FOSC/4 output.
PIC16F193X/LF193X TABLE 1-2: PIC16F193X/LF193X PINOUT DESCRIPTION (CONTINUED) Name RB4/AN11/CPS4/P1D/COM0 RB5/AN13/CPS5/P2B/CCP3(1)/ P3A(1)/T1G(1)/COM1 RB6/ICSPCLK/ICDCLK/SEG14 RB7/ICSPDAT/ICDDAT/SEG13 RC0/T1OSO/T1CKI/P2B RC1/T1OSI/CCP2 (1) (1) (1) /P2A RC2/CCP1/P1A/SEG3 RC3/SCK/SCL/SEG6 Function Input Type RB4 TTL Output Type Description CMOS General purpose I/O. Individually controlled interrupt-on-change. Individually enabled pull-up. AN11 AN — A/D Channel 11 input.
PIC16F193X/LF193X TABLE 1-2: PIC16F193X/LF193X PINOUT DESCRIPTION (CONTINUED) Name RC4/SDI/SDA/T1G(1)/SEG11 RC5/SDO/SEG10 RC6/TX/CK/CCP3/P3A/SEG9 RC7/RX/DT/P3B/SEG8 RD0(4)/CPS8/COM3 RD1(4)/CPS9/CCP4 RD2(4)/CPS10/P2B RD3(4)/CPS11/P2C/SEG16 RD4(4)/CPS12/P2D/SEG17 RD5(4)/CPS13/P1B/SEG18 Function Input Type RC4 ST Output Type Description CMOS General purpose I/O. SDI ST — SPI data input. SDA I2C OD I2C™ data input/output. T1G ST — Timer1 Gate input.
PIC16F193X/LF193X TABLE 1-2: PIC16F193X/LF193X PINOUT DESCRIPTION (CONTINUED) Name RD6(4)/CPS14/P1C/SEG19 RD7(4)/CPS15/P1D/SEG20 RE0(5)/AN5/P3A(1)/CCP3(1)/ SEG21 RE1 RE2 (5) /AN6/P3B/SEG22 (5) /AN7/CCP5/SEG23 Function Input Type RD6 ST CPS14 AN P1C — SEG19 — RD7 ST CPS15 AN P1D — Output Type Description CMOS General purpose I/O. — Capacitive sensing input 14. CMOS PWM output. AN LCD analog output. CMOS General purpose I/O. — Capacitive sensing input 15. CMOS PWM output.
PIC16F193X/LF193X NOTES: DS41364D-page 22 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 2.0 ENHANCED MID-RANGE CPU This family of devices contain an enhanced mid-range 8-bit CPU core. The CPU has 49 instructions. Interrupt capability includes automatic context saving. The hardware stack is 16 levels deep and has Overflow and Underflow Reset capability. Direct, indirect, and relative addressing modes are available. Two File Select Registers (FSRs) provide the ability to read program and data memory.
PIC16F193X/LF193X FIGURE 2-1: CORE BLOCK DIAGRAM 15 Configuration 15 MUX Flash Program Memory Program Bus 16-Level 8 Level Stack Stack (13-bit) (15-bit) 14 Instruction Instruction Reg reg 8 Data Bus Program Counter RAM Program Memory Read (PMR) 9 RAM Addr Addr MUX Direct Addr 7 12 15 Indirect Addr 12 FSR0reg Reg FSR FSR1 Reg FSR reg 15 STATUS Reg reg STATUS 8 3 Power-up Timer OSC1/CLKIN OSC2/CLKOUT Instruction & Decode Decodeand Control Timing Generation Oscillator Start-up Timer
PIC16F193X/LF193X 3.0 MEMORY ORGANIZATION There are three types of memory in PIC16F193X/LF193X devices: Data Memory, Program Memory and Data EEPROM Memory(1). • Program Memory • Data Memory - Core Registers - Special Function Registers - General Purpose RAM - Common RAM - Device Memory Maps - Special Function Registers Summary • Data EEPROM memory(1) The following features are associated with access and control of program memory and data memory: • PCL and PCLATH • Stack • Indirect Addressing 3.
PIC16F193X/LF193X FIGURE 3-1: PROGRAM MEMORY MAP AND STACK FOR 4KW PARTS FIGURE 3-2: PC<14:0> CALL, CALLW RETURN, RETLW Interrupt, RETFIE On-chip Program Memory PROGRAM MEMORY MAP AND STACK FOR 8KW PARTS PC<14:0> 15 CALL, CALLW RETURN, RETLW Interrupt, RETFIE 15 Stack Level 0 Stack Level 1 Stack Level 0 Stack Level 1 Stack Level 15 Stack Level 15 Reset Vector 0000h Reset Vector 0000h Interrupt Vector 0004h 0005h Interrupt Vector 0004h 0005h Page 0 Page 0 07FFh 0800h 07FFh 0800h Page
PIC16F193X/LF193X FIGURE 3-3: PROGRAM MEMORY MAP AND STACK FOR 16KW PARTS PC<14:0> CALL, CALLW 15 RETURN, RETLW Interrupt, RETFIE Stack Level 0 Stack Level 1 EXAMPLE 3-1: 0000h Interrupt Vector 0004h 0005h constants brw retlw retlw retlw retlw Page 0 07FFh 0800h Page 1 0FFFh 1000h Page 2 Page 4 Page 7 Rollover to Page 0 Rollover to Page 7 2009 Microchip Technology Inc. RETLW Instruction The RETLW instruction can be used to provide access to tables of constants.
PIC16F193X/LF193X 3.1.1.2 Indirect Read with FSR 3.2.1 The program memory can be accessed as data by setting bit 7 of the FSRxH register and reading the matching INDFx register. The MOVIW instruction will place the lower 8 bits of the addressed word in the W register. Writes to the program memory cannot be performed via the INDF registers. Instructions that access the program memory via the FSR require one extra instruction cycle to complete.
PIC16F193X/LF193X 3.2.1.1 STATUS Register The STATUS register, shown in Register 3-1, contains: • the arithmetic status of the ALU • the Reset status The STATUS register can be the destination for any instruction, like any other register. If the STATUS register is the destination for an instruction that affects the Z, DC or C bits, then the write to these three bits is disabled. These bits are set or cleared according to the device logic. Furthermore, the TO and PD bits are not writable.
PIC16F193X/LF193X 3.2.2 3.2.5 SPECIAL FUNCTION REGISTER The Special Function Registers are registers used by the application to control the desired operation of peripheral functions in the device. The registers associated with the operation of the peripherals are described in the appropriate peripheral chapter of this data sheet. 3.2.3 GENERAL PURPOSE RAM There are up to 80 bytes of GPR in each data memory bank. 3.2.3.
PIC16F1933/1934 MEMORY MAP, BANKS 0-7 BANK 0 BANK 1 BANK 2 BANK 3 BANK 4 000h 001h 002h 003h 004h 005h 006h 007h 008h 009h 00Ah 00Bh 00Ch 00Dh 00Eh INDF0 INDF1 PCL STATUS FSR0L FSR0H FSR1L FSR1H BSR WREG PCLATH INTCON PORTA PORTB PORTC 080h 081h 082h 083h 084h 085h 086h 087h 088h 089h 08Ah 08Bh 08Ch 08Dh 08Eh INDF0 INDF1 PCL STATUS FSR0L FSR0H FSR1L FSR1H BSR WREG PCLATH INTCON TRISA TRISB TRISC 100h 101h 102h 103h 104h 105h 106h 107h 108h 109h 10Ah 10Bh 10Ch 10Dh 10Eh INDF0 INDF1 PCL STATUS FSR0
PIC16F1933/1934 MEMORY MAP, BANKS 8-15 BANK 8 Preliminary 400h 401h 402h 403h 404h 405h 406h 407h 408h 409h 40Ah 40Bh 40Ch 40Dh 40Eh 40Fh 410h 411h 412h 413h 414h 415h 416h 417h 418h 419h 41Ah 41Bh 41Ch 41Dh 41Eh 41Fh 420h INDF0 INDF1 PCL STATUS FSR0L FSR0H FSR1L FSR1H BSR WREG PCLATH INTCON — — — — — — — — — TMR4 PR4 T4CON — — — — TMR6 PR6 T6CON — BANK 9 480h 481h 482h 483h 484h 485h 486h 487h 488h 489h 48Ah 48Bh 48Ch 48Dh 48Eh 48Fh 490h 491h 492h 493h 494h 495h 496h 497h 498h 499h 49Ah 49Bh 49Ch 49Dh
PIC16F1936/1937 MEMORY MAP, BANKS 0-7 BANK 0 BANK 1 BANK 2 BANK 3 BANK 4 000h 001h 002h 003h 004h 005h 006h 007h 008h 009h 00Ah 00Bh 00Ch 00Dh 00Eh INDF0 INDF1 PCL STATUS FSR0L FSR0H FSR1L FSR1H BSR WREG PCLATH INTCON PORTA PORTB PORTC 080h 081h 082h 083h 084h 085h 086h 087h 088h 089h 08Ah 08Bh 08Ch 08Dh 08Eh INDF0 INDF1 PCL STATUS FSR0L FSR0H FSR1L FSR1H BSR WREG PCLATH INTCON TRISA TRISB TRISC 100h 101h 102h 103h 104h 105h 106h 107h 108h 109h 10Ah 10Bh 10Ch 10Dh 10Eh INDF0 INDF1 PCL STATUS FSR0
PIC16F1936/1937 MEMORY MAP, BANKS 8-15 BANK 8 Preliminary 400h 401h 402h 403h 404h 405h 406h 407h 408h 409h 40Ah 40Bh 40Ch 40Dh 40Eh 40Fh 410h 411h 412h 413h 414h 415h 416h 417h 418h 419h 41Ah 41Bh 41Ch 41Dh 41Eh 41Fh 420h INDF0 INDF1 PCL STATUS FSR0L FSR0H FSR1L FSR1H BSR WREG PCLATH INTCON — — — — — — — — — TMR4 PR4 T4CON — — — — TMR6 PR6 T6CON — BANK 9 480h 481h 482h 483h 484h 485h 486h 487h 488h 489h 48Ah 48Bh 48Ch 48Dh 48Eh 48Fh 490h 491h 492h 493h 494h 495h 496h 497h 498h 499h 49Ah 49Bh 49Ch 49Dh
2009 Microchip Technology Inc.
PIC16F1938/1939 MEMORY MAP, BANKS 8-15 BANK 8 Preliminary 400h 401h 402h 403h 404h 405h 406h 407h 408h 409h 40Ah 40Bh 40Ch 40Dh 40Eh 40Fh 410h 411h 412h 413h 414h 415h 416h 417h 418h 419h 41Ah 41Bh 41Ch 41Dh 41Eh 41Fh 420h INDF0 INDF1 PCL STATUS FSR0L FSR0H FSR1L FSR1H BSR WREG PCLATH INTCON — — — — — — — — — TMR4 PR4 T4CON — — — — TMR6 PR6 T6CON — BANK 9 480h 481h 482h 483h 484h 485h 486h 487h 488h 489h 48Ah 48Bh 48Ch 48Dh 48Eh 48Fh 490h 491h 492h 493h 494h 495h 496h 497h 498h 499h 49Ah 49Bh 49Ch 49Dh
2009 Microchip Technology Inc.
PIC16F193X/LF193X MEMORY MAP, BANKS 24-31 BANK 24 Preliminary C00h C01h C02h C03h C04h C05h C06h C07h C08h C09h C0Ah C0Bh C0Ch C0Dh C0Eh C0Fh C10h C11h C12h C13h C14h C15h C16h C17h C18h C19h C1Ah C1Bh C1Ch C1Dh C1Eh C1Fh C20h INDF0 INDF1 PCL STATUS FSR0L FSR0H FSR1L FSR1H BSR WREG PCLATH INTCON — — — — — — — — — — — — — — — — — — — — BANK 25 C80h C81h C82h C83h C84h C85h C86h C87h C88h C89h C8Ah C8Bh C8Ch C8Dh C8Eh C8Fh C90h C91h C92h C93h C94h C95h C96h C97h C98h C99h C9Ah C9Bh C9Ch C9Dh C9Eh C9Fh CA
PIC16F193X/LF193X TABLE 3-11: PIC16F1933/1936/1938 MEMORY MAP, BANK 15 TABLE 3-12: Bank 15 791h 792h 793h 794h 795h 796h 797h 798h 799h 79Ah 79Bh 79Ch 79Dh 79Eh 79Fh 7A0h 7A1h 7A2h 7A3h 7A4h 7A5h 7A6h 7A7h 7A8h 7A9h 7AAh 7ABh 7ACh 7ADh 7AEh 7AFh 7B0h 7B1h 7B2h 7B3h 7B4h 7B5h 7B6h 7B7h 7B8h PIC16F1934/1937/1939 MEMORY MAP, BANK 15 Bank 15 LCDCON LCDPS LCDREF LCDCST LCDRL — — LCDSE0 LCDSE1 — — — — — — LCDDATA0 LCDDATA1 — LCDDATA3 LCDDATA4 — LCDDATA6 LCDDATA7 — LCDDATA9 LCDDATA10 — — — — — — — — — — — — —
PIC16F193X/LF193X TABLE 3-13: PIC16F193X/LF193X MEMORY MAP, BANK 31 Bank 31 F8Ch Unimplemented Read as ‘0’ FE3h FE4h FE5h FE6h FE7h FE8h FE9h FEAh FEBh FECh FEDh FEEh FEFh Legend: 3.2.6 STATUS_SHAD WREG_SHAD BSR_SHAD PCLATH_SHAD FSR0L_SHAD FSR0H_SHAD FSR1L_SHAD FSR1H_SHAD — STKPTR TOSL TOSH = Unimplemented data memory locations, read as ‘0’.
PIC16F193X/LF193X = TABLE 3-14: Address Name SPECIAL FUNCTION REGISTER SUMMARY Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 0 000h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 001h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 002h(2) PCL Program Counter (PC) Lea
PIC16F193X/LF193X TABLE 3-14: Address SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 1 080h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 081h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 082h(2) PCL Program Counte
PIC16F193X/LF193X TABLE 3-14: Address Name SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 2 100h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 101h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 102h(2) PCL Program Counter
PIC16F193X/LF193X TABLE 3-14: Address SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 3 180h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 181h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 182h(2) PCL Program Counte
PIC16F193X/LF193X TABLE 3-14: Address Name SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 4 200h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 201h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 202h(2) PCL Program Counter
PIC16F193X/LF193X TABLE 3-14: Address SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 5 280h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 281h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 282h(2) PCL Program Counte
PIC16F193X/LF193X TABLE 3-14: Address SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 6 300h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 301h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 302h(2) PCL Program Counte
PIC16F193X/LF193X TABLE 3-14: Address Name SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 7 380h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 381h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 382h(2) PCL Program Counter
PIC16F193X/LF193X TABLE 3-14: Address Name SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 8 400h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 401h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 402h(2) PCL Program Counter
PIC16F193X/LF193X TABLE 3-14: Address Name SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Banks 9-14 x00h/ x80h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx x00h/ x81h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx x02h/ x82h(2)
PIC16F193X/LF193X TABLE 3-14: Address SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 15 780h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 781h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx 782h(2) PCL Program Count
PIC16F193X/LF193X TABLE 3-14: Address SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 15 (Continued) 7A6h LCDDATA6 SEG7 COM2 SEG6 COM2 SEG5 COM2 SEG4 COM2 SEG3 COM2 SEG2 COM2 SEG1 COM2 SEG0 COM2 xxxx xxxx uuuu uuuu 7A7h LCDDATA7 SEG15 COM2 SEG14 COM2 SEG13 COM2 SEG12 COM2 SEG11 COM2 SEG10 COM2 SEG9 COM2 SEG8 COM2 xxxx xxxx uuuu uuuu 7A8h LCDDATA8(3) SEG23 COM2 SEG22 COM2
PIC16F193X/LF193X TABLE 3-14: Address Name SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Banks 16-30 x00h/ x80h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx x00h/ x81h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx x02h/ x82h(2
PIC16F193X/LF193X TABLE 3-14: Address SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Value on all other Resets Bank 31 F80h(2) INDF0 Addressing this location uses contents of FSR0H/FSR0L to address data memory (not a physical register) xxxx xxxx xxxx xxxx F81h(2) INDF1 Addressing this location uses contents of FSR1H/FSR1L to address data memory (not a physical register) xxxx xxxx xxxx xxxx F82h(2) PCL Program Count
PIC16F193X/LF193X 3.3 3.3.3 PCL and PCLATH COMPUTED FUNCTION CALLS The Program Counter (PC) is 15 bits wide. The low byte comes from the PCL register, which is a readable and writable register. The high byte (PC<14:8>) is not directly readable or writable and comes from PCLATH. On any Reset, the PC is cleared. Figure 3-5 shows the five situations for the loading of the PC.
PIC16F193X/LF193X 3.4 3.4.1 Stack The stack is available through the TOSH, TOSL and STKPTR registers. STKPTR is the current value of the Stack Pointer. TOSH:TOSL register pair points to the TOP of the stack. Both registers are read/writable. TOS is split into TOSH and TOSL due to the 15-bit size of the PC. To access the stack, adjust the value of STKPTR, which will position TOSH:TOSL, then read/write to TOSH:TOSL. STKPTR is 5 bits to allow detection of overflow and underflow.
PIC16F193X/LF193X FIGURE 3-7: ACCESSING THE STACK EXAMPLE 2 0x0F 0x0E 0x0D 0x0C 0x0B 0x0A 0x09 This figure shows the stack configuration after the first CALL or a single interrupt. If a RETURN instruction is executed, the return address will be placed in the Program Counter and the Stack Pointer decremented to the empty state (0x1F).
PIC16F193X/LF193X FIGURE 3-9: ACCESSING THE STACK EXAMPLE 4 TOSH:TOSL 3.4.
PIC16F193X/LF193X FIGURE 3-10: INDIRECT ADDRESSING 0x0000 0x0000 Traditional Data Memory 0x0FFF 0x0FFF 0x1000 Reserved 0x1FFF 0x2000 Linear Data Memory 0x29AF 0x29B0 FSR Address Range Reserved 0x7FFF 0x8000 0x0000 Program Flash Memory 0xFFFF Note: 0x7FFF Not all memory regions are completely implemented. Consult device memory tables for memory limits. 2009 Microchip Technology Inc.
PIC16F193X/LF193X 3.5.1 TRADITIONAL DATA MEMORY The traditional data memory is a region from FSR address 0x000 to FSR address 0xFFF. The addresses correspond to the absolute addresses of all SFR, GPR and common registers.
PIC16F193X/LF193X 3.5.2 3.5.3 LINEAR DATA MEMORY The linear data memory is the region from FSR address 0x2000 to FSR address 0x29AF. This region is a virtual region that points back to the 80-byte blocks of GPR memory in all the banks. Unimplemented memory reads as 0x00. Use of the linear data memory region allows buffers to be larger than 80 bytes because incrementing the FSR beyond one bank will go directly to the GPR memory of the next bank.
PIC16F193X/LF193X NOTES: DS41364D-page 62 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 4.0 DEVICE CONFIGURATION Device Configuration consists of Configuration Word 1 and Configuration Word 2 registers, Code Protection and Device ID. 4.1 Configuration Words There are several Configuration Word bits that allow different oscillator and memory protection options. These are implemented as Configuration Word 1 register at 8007h and Configuration Word 2 register at 8008h. 2009 Microchip Technology Inc.
PIC16F193X/LF193X REGISTER 4-1: CONFIGURATION WORD 1 R/P-1/1 R/P-1/1 R/P-1/1 R/P-1/1 R/P-1/1 R/P-1/1 R/P-1/1 FCMEN IESO CLKOUTEN BOREN1 BOREN0 CPD CP bit 13 bit 7 R/P-1/1 R/P-1/1 R/P-1/1 R/P-1/1 R/P-1/1 R/P-1/1 R/P-1/1 MCLRE PWRTE WDTE1 WDTE0 FOSC2 FOSC1 FOSC0 bit 6 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit
PIC16F193X/LF193X REGISTER 4-1: bit 2-0 Note 1: 2: 3: CONFIGURATION WORD 1 (CONTINUED) FOSC<2:0>: Oscillator Selection bits 111 = ECH: External Clock, High-Power mode: CLKIN on RA7/OSC1/CLKIN 110 = ECM: External Clock, Medium-Power mode: CLKIN on RA7/OSC1/CLKIN 101 = ECL: External Clock, Low-Power mode: CLKIN on RA7/OSC1/CLKIN 100 = INTOSC oscillator: I/O function on RA7/OSC1/CLKIN 011 = EXTRC oscillator: RC function on RA7/OSC1/CLKIN 010 = HS oscillator: High-speed crystal/resonator on RA6/OSC2/CLKOUT p
PIC16F193X/LF193X REGISTER 4-2: CONFIGURATION WORD 2 R/P-1/1 R/P-1/1 U-1 R/P-1/1 R/P-1/1 R/P-1/1 U-1 LVP DEBUG — BORV STVREN PLLEN — bit 13 bit 7 U-1 R/P-1/1 R/P-1/1 U-1 U-1 R/P-1/1 R/P-1/1 — VCAPEN1 VCAPEN0 — — WRT1 WRT0 bit 6 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared P = Programmable bit bit 13
PIC16F193X/LF193X 4.2 Code Protection Code protection allows the device to be protected from unauthorized access. Program memory protection and data EEPROM protection are controlled independently. Internal access to the program memory and data EEPROM are unaffected by any code protection setting. 4.2.1 PROGRAM MEMORY PROTECTION The entire program memory space is protected from external reads and writes by the CP bit in Configuration Word 1.
PIC16F193X/LF193X 4.5 Device ID and Revision ID The memory location 8006h is where the Device ID and Revision ID are stored. The upper nine bits hold the Device ID. The lower five bits hold the Revision ID. See Section 11.5 “User ID, Device ID and Configuration Word Access” for more information on accessing these memory locations. Development tools, such as device programmers and debuggers, may be used to read the Device ID and Revision ID.
PIC16F193X/LF193X 5.0 OSCILLATOR MODULE (WITH FAIL-SAFE CLOCK MONITOR) 5.1 Overview The oscillator module can be configured in one of six clock modes. 1. 2. 3. The oscillator module has a wide variety of clock sources and selection features that allow it to be used in a wide range of applications while maximizing performance and minimizing power consumption. Figure 5-1 illustrates a block diagram of the oscillator module. 4. 5. 6.
PIC16F193X/LF193X 5.2 Clock Source Types Clock sources can be classified as external or internal. External clock sources rely on external circuitry for the clock source to function. Examples are: oscillator modules (EC mode), quartz crystal resonators or ceramic resonators (LP, XT and HS modes) and Resistor-Capacitor (RC) mode circuits. Internal clock sources are contained internally within the oscillator module.
PIC16F193X/LF193X FIGURE 5-3: QUARTZ CRYSTAL OPERATION (LP, XT OR HS MODE) FIGURE 5-4: CERAMIC RESONATOR OPERATION (XT OR HS MODE) PIC® MCU PIC® MCU OSC1/CLKIN C1 Note 1: 2: C1 To Internal Logic Quartz Crystal C2 OSC1/CLKIN RS(1) RF(2) Sleep RP(3) OSC2/CLKOUT C2 Ceramic RS(1) Resonator A series resistor (RS) may be required for quartz crystals with low drive level. Note 1: The value of RF varies with the Oscillator mode selected (typically between 2 M to 10 M.
PIC16F193X/LF193X 5.2.1.5 5.2.1.6 TIMER1 Oscillator External RC Mode The Timer1 Oscillator is a separate crystal oscillator that is associated with the Timer1 peripheral. It is optimized for timekeeping operations with a 32.768 kHz crystal connected between the T1OSO and T1OSI device pins. The external Resistor-Capacitor (RC) modes support the use of an external RC circuit.
PIC16F193X/LF193X 5.2.2 INTERNAL CLOCK SOURCES 5.2.2.1 The device may be configured to use the internal oscillator block as the system clock by performing one of the following actions: • Program the FOSC<2:0> bits in Configuration Word 1 to select the INTOSC clock source, which will be used as the default system clock upon a device Reset. • Write the SCS<1:0> bits in the OSCCON register to switch the system clock source to the internal oscillator during run-time. See Section 5.
PIC16F193X/LF193X 5.2.2.3 Internal Oscillator Frequency Adjustment 5.2.2.5 The 500 kHz internal oscillator is factory calibrated. This internal oscillator can be adjusted in software by writing to the OSCTUNE register (Register 5-3). Since the HFINTOSC and MFINTOSC clock sources are derived from the 500 kHz internal oscillator a change in the OSCTUNE register value will apply to both. The default value of the OSCTUNE register is ‘0’. The value is a 5-bit two’s complement number.
PIC16F193X/LF193X 5.2.2.6 32 MHz Internal Oscillator Frequency Selection 5.2.2.7 The Internal Oscillator Block can be used with the 4X PLL associated with the External Oscillator Block to produce a 32 MHz internal system clock source. The following settings are required to use the 32 MHz internal clock source: • The FOSC bits in Configuration Word 1 must be set to use the INTOSC source as the device system clock (FOSC<2:0> = 100).
PIC16F193X/LF193X FIGURE 5-7: HFINTOSC/ MFINTOSC INTERNAL OSCILLATOR SWITCH TIMING LFINTOSC (FSCM and WDT disabled) HFINTOSC/ MFINTOSC Start-up Time 2-cycle Sync Running LFINTOSC IRCF <3:0> 0 0 System Clock HFINTOSC/ MFINTOSC LFINTOSC (Either FSCM or WDT enabled) HFINTOSC/ MFINTOSC 2-cycle Sync Running LFINTOSC 0 IRCF <3:0> 0 System Clock LFINTOSC HFINTOSC/MFINTOSC LFINTOSC turns off unless WDT or FSCM is enabled LFINTOSC Start-up Time 2-cycle Sync Running HFINTOSC/ MFINT
PIC16F193X/LF193X 5.3 5.3.3 Clock Switching TIMER1 OSCILLATOR The system clock source can be switched between external and internal clock sources via software using the System Clock Select (SCS) bits of the OSCCON register. The following clock sources can be selected using the SCS bits: The Timer1 Oscillator is a separate crystal oscillator associated with the Timer1 peripheral. It is optimized for timekeeping operations with a 32.768 kHz crystal connected between the T1OSO and T1OSI device pins.
PIC16F193X/LF193X 5.4 5.4.1 Two-Speed Clock Start-up Mode Two-Speed Start-up mode provides additional power savings by minimizing the latency between external oscillator start-up and code execution. In applications that make heavy use of the Sleep mode, Two-Speed Start-up will remove the external oscillator start-up time from the time spent awake and can reduce the overall power consumption of the device.
PIC16F193X/LF193X 5.4.2 1. 2. 3. 4. 5. 6. 7. TWO-SPEED START-UP SEQUENCE 5.4.3 Wake-up from Power-on Reset or Sleep. Instructions begin execution by the internal oscillator at the frequency set in the IRCF<3:0> bits of the OSCCON register. OST enabled to count 1024 clock cycles. OST timed out, wait for falling edge of the internal oscillator. OSTS is set. System clock held low until the next falling edge of new clock (LP, XT or HS mode). System clock is switched to external clock source.
PIC16F193X/LF193X 5.5 5.5.3 Fail-Safe Clock Monitor The Fail-Safe Clock Monitor (FSCM) allows the device to continue operating should the external oscillator fail. The FSCM can detect oscillator failure any time after the Oscillator Start-up Timer (OST) has expired. The FSCM is enabled by setting the FCMEN bit in the Configuration Word 1. The FSCM is applicable to all external Oscillator modes (LP, XT, HS, EC, Timer1 Oscillator and RC).
PIC16F193X/LF193X FIGURE 5-10: FSCM TIMING DIAGRAM Sample Clock Oscillator Failure System Clock Output Clock Monitor Output (Q) Failure Detected OSCFIF Test Note: Test Test The system clock is normally at a much higher frequency than the sample clock. The relative frequencies in this example have been chosen for clarity. 2009 Microchip Technology Inc.
PIC16F193X/LF193X 5.
PIC16F193X/LF193X REGISTER 5-2: OSCSTAT: OSCILLATOR STATUS REGISTER R-1/q R-0/q R-q/q R-0/q R-0/q R-q/q R-0/0 R-0/q T1OSCR PLLR OSTS HFIOFR HFIOFL MFIOFR LFIOFR HFIOFS bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared q = Conditional bit 7 T1OSCR: Timer1 Oscillator Ready bit If T1OSCEN = 1: 1 = Timer1 oscillat
PIC16F193X/LF193X REGISTER 5-3: OSCTUNE: OSCILLATOR TUNING REGISTER U-0 U-0 — — R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 TUN<5:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-6 Unimplemented: Read as ‘0’ bit 5-0 TUN<4:0>: Frequency Tuning bits 011111 = Maximum frequency 011110 = • • • 000001 = 00
PIC16F193X/LF193X 6.0 RESETS There are multiple ways to reset this device: • • • • • • • • Power-on Reset (POR) Brown-out Reset (BOR) MCLR Reset WDT Reset RESET instruction Stack Overflow Stack Underflow Programming mode exit To allow VDD to stabilize, an optional power-up timer can be enabled to extend the Reset time after a BOR or POR event. A simplified block diagram of the On-Chip Reset Circuit is shown in Figure 6-1.
PIC16F193X/LF193X 6.1 Power-on Reset (POR) 6.2 Brown-Out Reset (BOR) The POR circuit holds the device in Reset until VDD has reached an acceptable level for minimum operation. Slow rising VDD, fast operating speeds or analog performance may require greater than minimum VDD. The PWRT, BOR or MCLR features can be used to extend the start-up period until all device operation conditions have been met. The BOR circuit holds the device in Reset when Vdd reaches a selectable minimum level.
PIC16F193X/LF193X FIGURE 6-2: BROWN-OUT READY SBOREN TBORRDY BORRDY FIGURE 6-3: BOR Protection Active BROWN-OUT SITUATIONS VDD VBOR Internal Reset TPWRT(1) VDD VBOR Internal Reset < TPWRT TPWRT(1) VDD VBOR Internal Reset Note 1: TPWRT(1) TPWRT delay only if PWRTE bit is programmed to ‘0’.
PIC16F193X/LF193X 6.3 MCLR 6.7 The MCLR is an optional external input that can reset the device. The MCLR function is controlled by the MCLRE bit of Configuration Word 1 and the LVP bit of Configuration Word 2 (Table 6-2). TABLE 6-2: LVP MCLR 0 0 Disabled 1 0 Enabled x 1 Enabled 6.3.1 6.9 MCLR ENABLED The device has a noise filter in the MCLR Reset path. The filter will detect and ignore small pulses. 6.3.2 A Reset does not drive the MCLR pin low.
PIC16F193X/LF193X FIGURE 6-4: RESET START-UP SEQUENCE VDD Internal POR TPWRT Power Up Timer MCLR TMCLR Internal RESET Oscillator Modes External Crystal TOST Oscillator Start Up Timer Oscillator FOSC Internal Oscillator Oscillator FOSC External Clock (EC) CLKIN FOSC 2009 Microchip Technology Inc.
PIC16F193X/LF193X 6.10 Determining the Cause of a Reset Upon any Reset, multiple bits in the STATUS and PCON register are updated to indicate the cause of the Reset. Table 6-3 and Table 6-4 show the Reset conditions of these registers.
PIC16F193X/LF193X 6.11 Power Control (PCON) Register The Power Control (PCON) register contains flag bits to differentiate between a: • • • • • • Power-on Reset (POR) Brown-out Reset (BOR) Reset Instruction Reset (RI) Stack Overflow Reset (STKOVF) Stack Underflow Reset (STKUNF) MCLR Reset (RMCLR) The PCON register bits are shown in Register 6-2.
PIC16F193X/LF193X TABLE 6-5: SUMMARY OF REGISTERS ASSOCIATED WITH RESETS Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page BORCON SBOREN — — — — — — BORRDY 87 PCON STKOVF STKUNF — — RMCLR RI POR BOR 91 STATUS — — — TO PD Z DC C 29 WDTCON — — SWDTEN 113 WDTPS<4:0> Legend: — = unimplemented location, read as ‘0’. Shaded cells are not used by Resets.
PIC16F193X/LF193X 7.0 INTERRUPTS The interrupt feature allows certain events to preempt normal program flow. Firmware is used to determine the source of the interrupt and act accordingly. Some interrupts can be configured to wake the MCU from Sleep mode. This chapter contains the following information for Interrupts: • • • • • Operation Interrupt Latency Interrupts During Sleep INT Pin Automatic Context Saving Many peripherals produce Interrupts. Refer to the corresponding chapters for details.
PIC16F193X/LF193X FIGURE 7-2: PERIPHERAL INTERRUPT LOGIC TMR1GIF TMR1GIE ADIF ADIE RCIF RCIE TXIF TXIE SSPIF SSPIE CCP1IF CCP1IE CCP5IF CCP5IE OSFIF OSFIE TMR1IF TMR1IE To Interrupt Logic (Figure 7-1) TMR6IF TMR6IE C2IF C2IE C1IF C1IE EEIF EEIE BCLIF BCLIE LCDIF LCDIE DS41364D-page 94 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 7.1 Operation 7.2 Interrupts are disabled upon any device Reset.
PIC16F193X/LF193X FIGURE 7-3: INTERRUPT LATENCY OSC1 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 CLKOUT Interrupt Sampled during Q1 Interrupt GIE PC Execute PC-1 PC 1 Cycle Instruction at PC PC+1 0004h 0005h Inst(PC) NOP NOP Inst(0004h) PC+1/FSR ADDR New PC/ PC+1 0004h 0005h Inst(PC) NOP NOP Inst(0004h) FSR ADDR PC+1 PC+2 0004h 0005h INST(PC) NOP NOP NOP Inst(0004h) Inst(0005h) FSR ADDR PC+1 0004h 0005h INST(PC) NOP
PIC16F193X/LF193X FIGURE 7-4: INT PIN INTERRUPT TIMING Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 OSC1 CLKOUT (3) (4) INT pin (1) (1) INTF Interrupt Latency (2) (5) GIE INSTRUCTION FLOW PC Instruction Fetched Instruction Executed Note 1: PC Inst (PC) Inst (PC – 1) PC + 1 Inst (PC + 1) PC + 1 — Dummy Cycle Inst (PC) 0004h 0005h Inst (0004h) Inst (0005h) Dummy Cycle Inst (0004h) INTF flag is sampled here (every Q1).
PIC16F193X/LF193X 7.3 Interrupts During Sleep Some interrupts can be used to wake from Sleep. To wake from Sleep, the peripheral must be able to operate without the system clock. The interrupt source must have the appropriate Interrupt Enable bit(s) set prior to entering Sleep. On waking from Sleep, if the GIE bit is also set, the processor will branch to the interrupt vector. Otherwise, the processor will continue executing instructions after the SLEEP instruction.
PIC16F193X/LF193X 7.5.1 INTCON REGISTER Note: The INTCON register is a readable and writable register, which contains the various enable and flag bits for TMR0 register overflow, interrupt-on-change and external INT pin interrupts. REGISTER 7-1: Interrupt flag bits are set when an interrupt condition occurs, regardless of the state of its corresponding enable bit or the Global Enable bit, GIE, of the INTCON register.
PIC16F193X/LF193X 7.5.2 PIE1 REGISTER The PIE1 register contains the interrupt enable bits, as shown in Register 7-2. REGISTER 7-2: Note: Bit PEIE of the INTCON register must be set to enable any peripheral interrupt.
PIC16F193X/LF193X 7.5.3 PIE2 REGISTER The PIE2 register contains the interrupt enable bits, as shown in Register 7-3. REGISTER 7-3: Note: Bit PEIE of the INTCON register must be set to enable any peripheral interrupt.
PIC16F193X/LF193X 7.5.4 PIE3 REGISTER The PIE3 register contains the interrupt enable bits, as shown in Register 7-4. REGISTER 7-4: Note: Bit PEIE of the INTCON register must be set to enable any peripheral interrupt.
PIC16F193X/LF193X 7.5.5 PIR1 REGISTER The PIR1 register contains the interrupt flag bits, as shown in Register 7-5. REGISTER 7-5: Note: Interrupt flag bits are set when an interrupt condition occurs, regardless of the state of its corresponding enable bit or the Global Enable bit, GIE, of the INTCON register. User software should ensure the appropriate interrupt flag bits are clear prior to enabling an interrupt.
PIC16F193X/LF193X 7.5.6 PIR2 REGISTER The PIR2 register contains the interrupt flag bits, as shown in Register 7-6. REGISTER 7-6: Note: Interrupt flag bits are set when an interrupt condition occurs, regardless of the state of its corresponding enable bit or the Global Enable bit, GIE, of the INTCON register. User software should ensure the appropriate interrupt flag bits are clear prior to enabling an interrupt.
PIC16F193X/LF193X 7.5.7 PIR3 REGISTER The PIR3 register contains the interrupt flag bits, as shown in Register 7-7. REGISTER 7-7: Note: Interrupt flag bits are set when an interrupt condition occurs, regardless of the state of its corresponding enable bit or the Global Enable bit, GIE, of the INTCON register. User software should ensure the appropriate interrupt flag bits are clear prior to enabling an interrupt.
PIC16F193X/LF193X TABLE 7-1: SUMMARY OF REGISTERS ASSOCIATED WITH INTERRUPTS Name INTCON Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF 99 OPTION_REG WPUEN INTEDG TMROCS TMROSE PIE1 TMR1GIE ADIE RCIE PIE2 OSFIE C2IE C1IE PIE3 — CCP5IE CCP4IE PIR1 TMR1GIF ADIF RCIF PIR2 OSFIF C2IF PIR3 — CCP5IF TXIE PSA PS<2:0> SSPIE CCP1IE EEIE BCLIE CCP3IE TMR6IE TXIF C1IF CCP4IF 191 TMR2IE TMR1IE 100
PIC16F193X/LF193X 8.0 LOW DROPOUT (LDO) VOLTAGE REGULATOR The PIC16F193X has an internal Low Dropout Regulator (LDO) which provides operation above 3.6V. The LDO regulates a voltage for the internal device logic while permitting the VDD and I/O pins to operate at a higher voltage. There is no user enable/disable control available for the LDO, it is always active. The PIC16LF193X operates at a maximum VDD of 3.6V and does not incorporate an LDO.
PIC16F193X/LF193X NOTES: DS41364D-page 108 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 9.0 POWER-DOWN MODE (SLEEP) 9.1 Wake-up from Sleep The Power-down mode is entered by executing a SLEEP instruction. The device can wake-up from Sleep through one of the following events: Upon entering Sleep mode, the following conditions exist: 1. 2. 3. 4. 5. 6. 1. WDT will be cleared but keeps running, if enabled for operation during Sleep. 2. PD bit of the STATUS register is cleared. 3. TO bit of the STATUS register is set. 4. CPU clock is disabled. 5.
PIC16F193X/LF193X 9.1.1 WAKE-UP USING INTERRUPTS • If the interrupt occurs during or after the execution of a SLEEP instruction - SLEEP instruction will be completely executed - Device will immediately wake-up from Sleep - WDT and WDT prescaler will be cleared - TO bit of the STATUS register will be set - PD bit of the STATUS register will be cleared.
PIC16F193X/LF193X 10.0 WATCHDOG TIMER The Watchdog Timer is a system timer that generates a Reset if the firmware does not issue a CLRWDT instruction within the time-out period. The Watchdog Timer is typically used to recover the system from unexpected events.
PIC16F193X/LF193X 10.1 Independent Clock Source 10.3 The WDT derives its time base from the 31 kHz LFINTOSC internal oscillator. 10.2 Time-Out Period The WDTPS bits of the WDTCON register set the time-out period from 1 ms to 256 seconds. After a Reset, the default time-out period is 2 seconds. WDT Operating Modes The Watchdog Timer module has four operating modes controlled by the WDTE<1:0> bits in Configuration Word 1. See Table 10-1. 10.2.
PIC16F193X/LF193X REGISTER 10-1: WDTCON: WATCHDOG TIMER CONTROL REGISTER U-0 U-0 — — R/W-0/0 R/W-1/1 R/W-0/0 R/W-1/1 R/W-1/1 WDTPS<4:0> bit 7 R/W-0/0 SWDTEN bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -m/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-6 Unimplemented: Read as ‘0’ bit 5-1 WDTPS<4:0>: Watchdog Timer Period Select bits Bit Value = Prescale Rate
PIC16F193X/LF193X NOTES: DS41364D-page 114 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 11.0 DATA EEPROM AND FLASH PROGRAM MEMORY CONTROL 11.1 The Data EEPROM and Flash program memory are readable and writable during normal operation (full VDD range). These memories are not directly mapped in the register file space. Instead, they are indirectly addressed through the Special Function Registers (SFRs).
PIC16F193X/LF193X 11.2 11.2.2 Using the Data EEPROM The data EEPROM is a high-endurance, byte addressable array that has been optimized for the storage of frequently changing information (e.g., program variables or other data that are updated often). When variables in one section change frequently, while variables in another section do not change, it is possible to exceed the total number of write cycles to the EEPROM without exceeding the total number of write cycles to a single byte.
PIC16F193X/LF193X Required Sequence EXAMPLE 11-2: DATA EEPROM WRITE BANKSEL MOVLW MOVWF MOVLW MOVWF BCF BCF BSF EEADRL DATA_EE_ADDR EEADRL DATA_EE_DATA EEDATL EECON1, CFGS EECON1, EEPGD EECON1, WREN ; ; ;Data Memory Address to write ; ;Data Memory Value to write ;Deselect Configuration space ;Point to DATA memory ;Enable writes BCF MOVLW MOVWF MOVLW MOVWF BSF BSF BCF BTFSC GOTO INTCON, 55h EECON2 0AAh EECON2 EECON1, INTCON, EECON1, EECON1, $-2 ;Disable INTs.
PIC16F193X/LF193X 11.3 Flash Program Memory Overview It is important to understand the Flash program memory structure for erase and programming operations. Flash Program memory is arranged in rows. A row consists of a fixed number of 14-bit program memory words. A row is the minimum block size that can be erased by user software.
PIC16F193X/LF193X EXAMPLE 11-3: FLASH PROGRAM MEMORY READ * This code block will read 1 word of program * memory at the memory address: PROG_ADDR_HI: PROG_ADDR_LO * data will be returned in the variables; * PROG_DATA_HI, PROG_DATA_LO BANKSEL MOVLW MOVWF MOVLW MOVWL EEADRL PROG_ADDR_LO EEADRL PROG_ADDR_HI EEADRH ; Select Bank for EEPROM registers ; ; Store LSB of address ; ; Store MSB of address BCF BSF BCF BSF NOP NOP BSF EECON1,CFGS EECON1,EEPGD INTCON,GIE EECON1,RD INTCON,GIE ; ; ; ; ; ; ; Do not
PIC16F193X/LF193X 11.3.2 ERASING FLASH PROGRAM MEMORY While executing code, program memory can only be erased by rows. To erase a row: 1. 2. 3. 4. 5. 6. Load the EEADRH:EEADRL register pair with the address of new row to be erased. Clear the CFGS bit of the EECON1 register. Set the EEPGD, FREE, and WREN bits of the EECON1 register. Write 55h, then AAh, to EECON2 (Flash programming unlock sequence). Set control bit WR of the EECON1 register to begin the erase operation.
PIC16F193X/LF193X After the “BSF EECON1,WR” instruction, the processor requires two cycles to set up the write operation. The user must place two NOP instructions after the WR bit is set. The processor will halt internal operations for the typical 2 ms, only during the cycle in which the write takes place (i.e., the last word of the block write). This is not Sleep mode as the clocks and peripherals will FIGURE 11-2: continue to run. The processor does not stall when LWLO = 1, loading the write latches.
PIC16F193X/LF193X EXAMPLE 11-4: ERASING ONE ROW OF PROGRAM MEMORY - Required Sequence ; This row erase routine assumes the following: ; 1. A valid address within the erase block is loaded in ADDRH:ADDRL ; 2.
PIC16F193X/LF193X EXAMPLE 11-5: ; ; ; ; ; ; ; WRITING TO FLASH PROGRAM MEMORY This write routine assumes the following: 1. The 16 bytes of data are loaded, starting at the address in DATA_ADDR 2. Each word of data to be written is made up of two adjacent bytes in DATA_ADDR, stored in little endian format 3. A valid starting address (the least significant bits = 000) is loaded in ADDRH:ADDRL 4.
PIC16F193X/LF193X 11.4 Modifying Flash Program Memory When modifying existing data in a program memory row, and data within that row must be preserved, it must first be read and saved in a RAM image. Program memory is modified using the following steps: 1. 2. 3. 4. 5. 6. 7. 8. Load the starting address of the row to be modified. Read the existing data from the row into a RAM image. Modify the RAM image to contain the new data to be written into program memory.
PIC16F193X/LF193X 11.6 Write Verify Depending on the application, good programming practice may dictate that the value written to the data EEPROM or program memory should be verified (see Example 11-6) to the desired value to be written. Example 11-6 shows how to verify a write to EEPROM.
PIC16F193X/LF193X REGISTER 11-1: R/W-x/u EEDATL: EEPROM DATA REGISTER R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u EEDAT<7:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 EEDAT<7:0>: Read/write value for EEPROM data byte or Least Significant bits of program memory REGISTER 11-2: EEDATH: EEPROM D
PIC16F193X/LF193X REGISTER 11-5: EECON1: EEPROM CONTROL 1 REGISTER R/W-0/0 R/W-0/0 R/W-0/0 R/W/HC-0/0 R/W-x/q R/W-0/0 R/S/HC-0/0 R/S/HC-0/0 EEPGD CFGS LWLO FREE WRERR WREN WR RD bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ S = Bit can only be set x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared HC = Bit is cleared by hardware bit 7 EEPGD: Flash Program/Data EEPROM Memory Se
PIC16F193X/LF193X REGISTER 11-6: W-0/0 EECON2: EEPROM CONTROL 2 REGISTER W-0/0 W-0/0 W-0/0 W-0/0 W-0/0 W-0/0 W-0/0 EEPROM Control Register 2 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ S = Bit can only be set x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 Data EEPROM Unlock Pattern bits To unlock writes, a 55h must be written first, followed by an AAh, before setting the WR
PIC16F193X/LF193X 12.0 I/O PORTS 12.1 Depending on the device selected and peripherals enabled, there are up to five ports available. In general, when a peripheral is enabled, that pin may not be used as a general purpose I/O pin. Each port has three registers for its operation.
PIC16F193X/LF193X REGISTER 12-1: APFCON: ALTERNATE PIN FUNCTION CONTROL REGISTER U-0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 — CCP3SEL T1GSEL P2BSEL SRNQSEL C2OUTSEL SSSEL CCP2SEL bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 Unimplemented: Read as ‘0’.
PIC16F193X/LF193X 12.2 12.2.2 PORTA Registers PORTA is a 8-bit wide, bidirectional port. The corresponding data direction register is TRISA (Register 12-3). Setting a TRISA bit (= 1) will make the corresponding PORTA pin an input (i.e., disable the output driver). Clearing a TRISA bit (= 0) will make the corresponding PORTA pin an output (i.e., enables output driver and puts the contents of the output latch on the selected pin). Example 12-1 shows how to initialize PORTA.
PIC16F193X/LF193X REGISTER 12-2: PORTA: PORTA REGISTER R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u RA7 RA6 RA5 RA4 RA3 RA2 RA1 RA0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared RA<7:0>: PORTA I/O Value bits(1) 1 = Port pin is > VIH 0 = Port pin is < VIL bit 7-0 Note 1: Writes to PORTA a
PIC16F193X/LF193X REGISTER 12-5: ANSELA: PORTA ANALOG SELECT REGISTER U-0 U-0 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 — — ANSA5 ANSA4 ANSA3 ANSA2 ANSA1 ANSA0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-6 Unimplemented: Read as ‘0’ bit 5-0 ANSA<5:0>: Analog Select between Analog or Digital
PIC16F193X/LF193X TABLE 12-1: Name SUMMARY OF REGISTERS ASSOCIATED WITH PORTA Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 GO/DONE ADON Register on Page ADCON0 — ADCON1 ADFM ANSELA — — ANSA5 ANSA4 APFCON — CCP3SEL T1GSEL P2BSEL CM1CON0 C1ON C1OUT C1OE C1POL — CM2CON0 C2ON C2OUT C2OE C2POL — CM1CON1 C1NTP C1INTN C1PCH<1:0> — — C1NCH<1:0> 181 CM2CON1 C2NTP C2INTN C2PCH<1:0> — — C2NCH<1:0> 181 CPSCON0 CPSON CPSRM(2) CHS<4:0> ADCS<2:0> — — CPSCON1
PIC16F193X/LF193X 12.3 12.3.3 PORTB Registers PORTB is an 8-bit wide, bidirectional port. The corresponding data direction register is TRISB (Register 12-7). Setting a TRISB bit (= 1) will make the corresponding PORTB pin an input (i.e., put the corresponding output driver in a High-Impedance mode). Clearing a TRISB bit (= 0) will make the corresponding PORTB pin an output (i.e., enable the output driver and put the contents of the output latch on the selected pin).
PIC16F193X/LF193X 12.3.4 PORTB FUNCTIONS AND OUTPUT PRIORITIES Each PORTB pin is multiplexed with other functions. The pins, their combined functions and their output priorities are briefly described here. For additional information, refer to the appropriate section in this data sheet. When multiple outputs are enabled, the actual pin control goes to the peripheral with the lowest number in the following lists. RB3 1. 2. RB4 1. 2. 3. 1. 2. 3. 4. RB0 1. 2. 3. 4.
PIC16F193X/LF193X REGISTER 12-7: TRISB: PORTB TRI-STATE REGISTER R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 TRISB<7:0>: PORTB Tri-State Control bit 1 = PORTB pin configured as a
PIC16F193X/LF193X REGISTER 12-10: WPUB: WEAK PULL-UP PORTB REGISTER R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 WPUB7 WPUB6 WPUB5 WPUB4 WPUB3 WPUB2 WPUB1 WPUB0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 Note 1: 2: WPUB<7:0>: Weak Pull-up Register bits 1 = Pull-up enabled 0 = Pu
PIC16F193X/LF193X 12.4 12.4.1 PORTC Registers PORTC is a 8-bit wide, bidirectional port. The corresponding data direction register is TRISC (Register 12-12). Setting a TRISC bit (= 1) will make the corresponding PORTC pin an input (i.e., put the corresponding output driver in a High-Impedance mode). Clearing a TRISC bit (= 0) will make the corresponding PORTC pin an output (i.e., enable the output driver and put the contents of the output latch on the selected pin).
PIC16F193X/LF193X REGISTER 12-11: PORTC: PORTC REGISTER R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 RC<7:0>: PORTC General Purpose I/O Pin bits 1 = Port pin is > VIH 0 = Port pin is < VIL REGISTER 12-12:
PIC16F193X/LF193X TABLE 12-4: Name APFCON CCPxCON SUMMARY OF REGISTERS ASSOCIATED WITH PORTC Bit 7 Bit 6 Bit 5 Bit 4 — CCP3SEL T1GSEL P2BSEL PxM<1:0> Bit 3 Bit 2 SRNQSEL C2OUTSEL DCxB<1:0> LATC LATC7 LATC6 LATC5 LATC4 Bit 1 Bit 0 Register on Page SSSEL CCP2SEL 130 LATC0 140 CCPxM<3:0> LATC3 LATC2 231 LATC1 LCDCON LCDEN SLPEN WERR — LCDSE0 SE7 SE6 SE5 SE4 SE3 SE2 LCDSE1 SE15 SE14 SE13 SE12 SE11 SE10 SE9 SE8 333 PORTC RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0
PIC16F193X/LF193X 12.5 12.5.2 PORTD Registers PORTD is a 8-bit wide, bidirectional port. The corresponding data direction register is TRISD (Register 12-14). Setting a TRISD bit (= 1) will make the corresponding PORTD pin an input (i.e., put the corresponding output driver in a High-Impedance mode). Clearing a TRISD bit (= 0) will make the corresponding PORTD pin an output (i.e., enable the output driver and put the contents of the output latch on the selected pin).
PIC16F193X/LF193X REGISTER 12-14: PORTD: PORTD REGISTER(1) R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 RD<7:0>: PORTD General Purpose I/O Pin bits 1 = Port pin is > VIH 0 = Port pin is < VIL Note 1: POR
PIC16F193X/LF193X REGISTER 12-17: ANSELD: PORTD ANALOG SELECT REGISTER(2) R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 ANSD7 ANSD6 ANSD5 ANSD4 ANSD3 ANSD2 ANSD1 ANSD0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 ANSD<7:0>: Analog Select between Analog or Digital Function on Pins RD
PIC16F193X/LF193X 12.6 12.6.2 PORTE Registers PORTE is a 4-bit wide, bidirectional port. The corresponding data direction register is TRISE. Setting a TRISE bit (= 1) will make the corresponding PORTE pin an input (i.e., put the corresponding output driver in a High-Impedance mode). Clearing a TRISE bit (= 0) will make the corresponding PORTE pin an output (i.e., enable the output driver and put the contents of the output latch on the selected pin).
PIC16F193X/LF193X REGISTER 12-18: PORTE: PORTE REGISTER U-0 U-0 — — U-0 — U-0 R-x/u R/W-x/u R/W-x/u R/W-x/u — RE3 RE2(1) RE1(1) RE0(1) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-4 Unimplemented: Read as ‘0’ bit 3-0 RE<3:0>: PORTE I/O Pin bits(1) 1 = Port pin is > VIH 0 = Port pin is < VIL Note 1:
PIC16F193X/LF193X REGISTER 12-20: LATE: PORTE DATA LATCH REGISTER U-0 U-0 U-0 U-0 R/W-x/u R/W-x/u R/W-x/u R/W-x/u — — — — LATE3 LATE2 LATE1 LATE0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-4 Unimplemented: Read as ‘0’ bit 3-0 LATE<3:0>: PORTE Output Latch Value bits(1) Note 1: Writes to PORTE are
PIC16F193X/LF193X REGISTER 12-22: WPUE: WEAK PULL-UP PORTE REGISTER U-0 U-0 U-0 U-0 R/W-1/1 U-0 U-0 U-0 — — — — WPUE3 — — — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-4 Unimplemented: Read as ‘0’ bit 3 WPUE: Weak Pull-up Register bit 1 = Pull-up enabled 0 = Pull-up disabled bit 2-0 Note 1: 2: Uni
PIC16F193X/LF193X 13.0 INTERRUPT-ON-CHANGE 13.3 The PORTB pins can be configured to operate as Interrupt-On-Change (IOC) pins. An interrupt can be generated by detecting a signal that has either a rising edge or a falling edge. Any individual PORTB pin, or combination of PORTB pins, can be configured to generate an interrupt.
PIC16F193X/LF193X REGISTER 13-1: IOCBP: INTERRUPT-ON-CHANGE POSITIVE EDGE REGISTER R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 IOCBP7 IOCBP6 IOCBP5 IOCBP4 IOCBP3 IOCBP2 IOCBP1 IOCBP0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 IOCBP<7:0>: Interrupt-on-Change Positive Edge Enabl
PIC16F193X/LF193X TABLE 13-1: SUMMARY OF REGISTERS ASSOCIATED WITH INTERRUPT-ON-CHANGE Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page ANSELB — — ANSB5 ANSB4 ANSB3 ANSB2 ANSB1 ANSB0 137 INTCON GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF 99 Name IOCBF IOCBF7 IOCBF6 IOCBF5 IOCBF4 IOCBF3 IOCBF2 IOCBF1 IOCBF0 150 IOCBN IOCBN7 IOCBN6 IOCBN5 IOCBN4 IOCBN3 IOCBN2 IOCBN1 IOCBN0 150 IOCBP IOCBP7 IOCBP6 IOCBP5 IOCBP4 IOCBP3 IOCBP2 IOCBP1 IOC
PIC16F193X/LF193X NOTES: DS41364D-page 152 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 14.0 FIXED VOLTAGE REFERENCE (FVR) 14.1 The Fixed Voltage Reference, or FVR, is a stable voltage reference, independent of VDD, with 1.024V, 2.048V or 4.096V selectable output levels. The output of the FVR can be configured to supply a reference voltage to the following: • • • • • Independent Gain Amplifiers The output of the FVR supplied to the ADC, Comparators, and DAC is routed through two independent programmable gain amplifiers.
PIC16F193X/LF193X REGISTER 14-1: FVRCON: FIXED VOLTAGE REFERENCE CONTROL REGISTER R/W-0/0 R-q/q R/W-0/0 R/W-0/0 FVREN FVRRDY(1) Reserved Reserved R/W-0/0 R/W-0/0 R/W-0/0 CDAFVR<1:0> R/W-0/0 ADFVR<1:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared q = Value depends on condition bit 7 FVREN: Fixed Voltage Refe
PIC16F193X/LF193X 15.0 The ADC can generate an interrupt upon completion of a conversion. This interrupt can be used to wake-up the device from Sleep. ANALOG-TO-DIGITAL CONVERTER (ADC) MODULE The Analog-to-Digital Converter (ADC) allows conversion of an analog input signal to a 10-bit binary representation of that signal. This device uses analog inputs, which are multiplexed into a single sample and hold circuit. The output of the sample and hold is connected to the input of the converter.
PIC16F193X/LF193X 15.1 15.1.4 ADC Configuration When configuring and using the ADC the following functions must be considered: • • • • • • Port configuration Channel selection ADC voltage reference selection ADC conversion clock source Interrupt control Result formatting 15.1.1 The ADC can be used to convert both analog and digital signals. When converting analog signals, the I/O pin should be configured for analog by setting the associated TRIS and ANSEL bits.
PIC16F193X/LF193X TABLE 15-1: ADC CLOCK PERIOD (TAD) VS. DEVICE OPERATING FREQUENCIES Device Frequency (FOSC) Device Frequency (FOSC) ADC Clock Period (TAD) ADC Clock Source ADCS<2:0> 32 MHz 20 MHz 16 MHz 8 MHz 4 MHz 1 MHz Fosc/2 000 62.5ns(2) 100 ns(2) 125 ns(2) 250 ns(2) 500 ns(2) 2.0 s Fosc/4 100 125 ns (2) (2) (2) (2) 1.0 s 4.0 s Fosc/8 001 0.5 s(2) 400 ns(2) 0.5 s(2) 1.0 s 2.0 s 8.0 s(3) Fosc/16 101 800 ns 800 ns 1.0 s 2.0 s 4.0 s 16.
PIC16F193X/LF193X 15.1.5 INTERRUPTS 15.1.6 The ADC module allows for the ability to generate an interrupt upon completion of an Analog-to-Digital conversion. The ADC Interrupt Flag is the ADIF bit in the PIR1 register. The ADC Interrupt Enable is the ADIE bit in the PIE1 register. The ADIF bit must be cleared in software. RESULT FORMATTING The 10-bit A/D conversion result can be supplied in two formats, left justified or right justified. The ADFM bit of the ADCON1 register controls the output format.
PIC16F193X/LF193X 15.2 15.2.1 15.2.4 ADC Operation STARTING A CONVERSION To enable the ADC module, the ADON bit of the ADCON0 register must be set to a ‘1’. Setting the GO/ DONE bit of the ADCON0 register to a ‘1’ will start the Analog-to-Digital conversion. Note: 15.2.2 The GO/DONE bit should not be set in the same instruction that turns on the ADC. Refer to Section 15.2.6 “A/D Conversion Procedure”.
PIC16F193X/LF193X 15.2.6 A/D CONVERSION PROCEDURE EXAMPLE 15-1: This is an example procedure for using the ADC to perform an Analog-to-Digital conversion: 1. 2. 3. 4. 5. 6. 7. 8.
PIC16F193X/LF193X 15.2.7 ADC REGISTER DEFINITIONS The following registers are used to control the operation of the ADC.
PIC16F193X/LF193X REGISTER 15-2: R/W-0/0 ADCON1: A/D CONTROL REGISTER 1 R/W-0/0 ADFM R/W-0/0 R/W-0/0 ADCS<2:0> U-0 R/W-0/0 — ADNREF R/W-0/0 R/W-0/0 ADPREF<1:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 ADFM: A/D Result Format Select bit 1 = Right justified.
PIC16F193X/LF193X REGISTER 15-3: R/W-x/u ADRESH: ADC RESULT REGISTER HIGH (ADRESH) ADFM = 0 R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u ADRES<9:2> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 ADRES<9:2>: ADC Result Register bits Upper 8 bits of 10-bit conversion result REGISTER 15-4: R/W-x/u A
PIC16F193X/LF193X REGISTER 15-5: ADRESH: ADC RESULT REGISTER HIGH (ADRESH) ADFM = 1 R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u R/W-x/u — — — — — — R/W-x/u R/W-x/u ADRES<9:8> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-2 Reserved: Do not use.
PIC16F193X/LF193X 15.3 A/D Acquisition Requirements For the ADC to meet its specified accuracy, the charge holding capacitor (CHOLD) must be allowed to fully charge to the input channel voltage level. The Analog Input model is shown in Figure 15-4. The source impedance (RS) and the internal sampling switch (RSS) impedance directly affect the time required to charge the capacitor CHOLD. The sampling switch (RSS) impedance varies over the device voltage (VDD), refer to Figure 15-4.
PIC16F193X/LF193X FIGURE 15-4: ANALOG INPUT MODEL VDD Analog Input pin Rs VT 0.6V CPIN 5 pF VA VT 0.
PIC16F193X/LF193X TABLE 15-3: Name ADCON0 ADCON1 SUMMARY OF REGISTERS ASSOCIATED WITH ADC Bit 7 Bit 6 Bit 5 — Bit 4 Bit 3 Bit 2 CHS<4:0> ADFM — ADCS<2:0> ADRESH A/D Result Register High ADRESL A/D Result Register Low ADNREF Bit 1 Bit 0 Register on Page GO/DONE ADON 161 ADPREF<1:0> 162 163 163 ANSELA — — ANSA5 ANSA4 ANSA3 ANSELB — — ANSB5 ANSB4 ANSB3 ANSB2 ANSB1 ANSB0 137 ANSELE — — — — — ANSE2 ANSE1 ANSE0 147 GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IO
PIC16F193X/LF193X NOTES: DS41364D-page 168 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 16.0 DIGITAL-TO-ANALOG CONVERTER (DAC) MODULE The Digital-to-Analog Converter supplies a variable voltage reference, ratiometric with the input source, with 32 selectable output levels. The negative voltage source is disabled by setting the DACLPS bit in the DACCON0 register. Clearing the DACLPS bit in the DACCON0 register disables the positive voltage source. 16.
PIC16F193X/LF193X FIGURE 16-1: DIGITAL-TO-ANALOG CONVERTER BLOCK DIAGRAM Digital-to-Analog Converter (DAC) FVR BUFFER2 VSRC+ VDD VREF+ R R 2 R DACEN DACLPS R R 32 Steps R 32-to-1 MUX DACPSS<1:0> DACR<4:0> 5 DAC (To Comparator and ADC Modules) R DACOUT R DACOE DACNSS VREF- VSRC- VSS FIGURE 16-2: VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE PIC® MCU DAC Module R Voltage Reference Output Impedance DS41364D-page 170 DACOUT Preliminary + – Buffered DAC Output 2009 Microchip Technology I
PIC16F193X/LF193X 16.7 Operation During Sleep When the device wakes up from Sleep through an interrupt or a Watchdog Timer time-out, the contents of the DACCON0 register are not affected. To minimize current consumption in Sleep mode, the voltage reference should be disabled. 16.8 Effects of a Reset A device Reset affects the following: • DAC is disabled. • DAC output voltage is removed from the DACOUT pin. • The DACR<4:0> range select bits are cleared. 2009 Microchip Technology Inc.
PIC16F193X/LF193X REGISTER 16-1: DACCON0: VOLTAGE REFERENCE CONTROL REGISTER 0 R/W-0/0 R/W-0/0 R/W-0/0 U-0 DACEN DACLPS DACOE --- R/W-0/0 R/W-0/0 U-0 R/W-0/0 --- DACNSS DACPSS<1:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 DACEN: DAC Enable bit 1 = DAC is enabled 0 = DAC is disabled bit 6 DACLPS:
PIC16F193X/LF193X TABLE 16-1: Name SUMMARY OF REGISTERS ASSOCIATED WITH DAC MODULE Bit 7 Bit 6 Bit 5 Bit 4 FVRCON FVREN FVRRDY Reserved Reserved CDAFVR<1:0> DACCON0 DACEN DACLPS DACOE — DACPSS<1:0> DACCON1 — — — Legend: Bit 3 Bit 2 Bit 1 Bit 0 ADFVR<1:0> — DACR<4:0> DACNSS Register on page 154 172 172 — = Unimplemented location, read as ‘0’. Shaded cells are not used with the DAC Module. 2009 Microchip Technology Inc.
PIC16F193X/LF193X NOTES: DS41364D-page 174 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 17.0 COMPARATOR MODULE FIGURE 17-1: Comparators are used to interface analog circuits to a digital circuit by comparing two analog voltages and providing a digital indication of their relative magnitudes. Comparators are very useful mixed signal building blocks because they provide analog functionality independent of program execution.
PIC16F193X/LF193X FIGURE 17-2: COMPARATOR MODULE SIMPLIFIED BLOCK DIAGRAM CxNCH<1:0> CxON(1) 2 CxINTP Interrupt det C12IN0- 0 C12IN1- 1 MUX 2 (2) C12IN2C12IN3- 3 Set CxIF det CXPOL CxVN D Cx(3) CxVP 0 MUX 1 (2) CXIN+ DAC CxINTN Interrupt CXOUT MCXOUT Q To Data Bus + EN Q1 CxHYS CxSP To ECCP PWM Logic 2 FVR Buffer2 3 CXSYNC CxON VSS CXPCH<1:0> 0 CXOE TRIS bit CXOUT 2 D (from Timer1) T1CLK Note 1: 2: 3: Q 1 To Timer1 or SR Latch SYNCCXOUT When CxON = 0, the Comparator w
PIC16F193X/LF193X 17.2 17.2.3 Comparator Control Each comparator has 2 control registers: CMxCON0 and CMxCON1. The CMxCON0 registers (see Register 17-1) contain Control and Status bits for the following: • • • • • • Enable Output selection Output polarity Speed/Power selection Hysteresis enable Output synchronization Inverting the output of the comparator is functionally equivalent to swapping the comparator inputs.
PIC16F193X/LF193X 17.3 Comparator Hysteresis 17.5 A selectable amount of separation voltage can be added to the input pins of each comparator to provide a hysteresis function to the overall operation. Hysteresis is enabled by setting the CxHYS bit of the CMxCON0 register. These hysteresis levels change as a function of the comparator’s Speed/Power mode selection. Table 17-2 shows the hysteresis levels.
PIC16F193X/LF193X 17.7 Comparator Negative Input Selection 17.10 Analog Input Connection Considerations The CxNCH<1:0> bits of the CMxCON0 register direct one of four analog pins to the comparator inverting input. Note: 17.8 To use CxIN+ and CxINx- pins as analog input, the appropriate bits must be set in the ANSEL register and the corresponding TRIS bits must also be set to disable the output drivers.
PIC16F193X/LF193X REGISTER 17-1: CMxCON0: COMPARATOR X CONTROL REGISTER 0 R/W-0/0 R-0/0 R/W-0/0 R/W-0/0 U-0 R/W-1/1 R/W-0/0 R/W-0/0 CxON CxOUT CxOE CxPOL — CxSP CxHYS CxSYNC bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 CxON: Comparator Enable bit 1 = Comparator is enabled and consumes no active power
PIC16F193X/LF193X REGISTER 17-2: CMxCON1: COMPARATOR CX CONTROL REGISTER 1 R/W-0/0 R/W-0/0 CxINTP CxINTN R/W-0/0 R/W-0/0 CxPCH<1:0> U-0 U-0 — — R/W-0/0 R/W-0/0 CxNCH<1:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 CxINTP: Comparator Interrupt on Positive Going Edge Enable bits 1 = The CxIF interrupt
PIC16F193X/LF193X TABLE 17-3: Name CM1CON0 SUMMARY OF REGISTERS ASSOCIATED WITH COMPARATOR MODULE Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page C1ON C1OUT C1OE C1POL --- C1SP C1HYS C1SYNC 180 C2OE C2POL C2HYS C2SYNC CM2CON0 C2ON C2OUT CM1CON1 C1NTP C1INTN CM2CON1 C2NTP C2INTN — — — — CMOUT — C2SP C1PCH<1:0> — — C2PCH<1:0> — — — — 180 C1NCH<1:0> 181 C2NCH<1:0> 181 MC2OUT MC1OUT FVRCON FVREN FVRRDY Reserved Reserved CDAFVR<1:0> DAC
PIC16F193X/LF193X 18.0 SR LATCH 18.2 The module consists of a single SR Latch with multiple Set and Reset inputs as well as separate latch outputs. The SR Latch module includes the following features: • • • • Programmable input selection SR Latch output is available externally Separate Q and Q outputs Firmware Set and Reset Latch Operation The latch is a Set-Reset Latch that does not depend on a clock source. Each of the Set and Reset inputs are active-high.
PIC16F193X/LF193X FIGURE 18-1: SR LATCH SIMPLIFIED BLOCK DIAGRAM SRPS SRLEN SRQEN Pulse Gen(2) SRI S SRSPE SRCLK Q SRQ SRSCKE SYNCC2OUT(3) SRSC2E SYNCC1OUT(3) SRSC1E SRPR SR Latch(1) Pulse Gen(2) SRI R SRRPE SRCLK Q SRNQ SRRCKE SYNCC2OUT(3) SRRC2E SRLEN SRNQEN SYNCC1OUT(3) SRRC1E Note 1: 2: 3: DS41364D-page 184 If R = 1 and S = 1 simultaneously, Q = 0, Q = 1 Pulse generator causes a 1 Q-state pulse width. Name denotes the connection point at the comparator output.
PIC16F193X/LF193X TABLE 18-1: SRCLK FREQUENCY TABLE SRCLK Divider FOSC = 32 MHz FOSC = 20 MHz FOSC = 16 MHz FOSC = 4 MHz FOSC = 1 MHz 111 512 110 256 62.5 kHz 39.0 kHz 31.3 kHz 7.81 kHz 1.95 kHz 125 kHz 78.1 kHz 62.5 kHz 15.6 kHz 3.90 kHz 101 100 128 250 kHz 156 kHz 125 kHz 31.25 kHz 7.81 kHz 64 500 kHz 313 kHz 250 kHz 62.5 kHz 15.6 kHz 011 32 1 MHz 625 kHz 500 kHz 125 kHz 31.3 kHz 010 16 2 MHz 1.25 MHz 1 MHz 250 kHz 62.5 kHz 001 8 4 MHz 2.
PIC16F193X/LF193X REGISTER 18-2: SRCON1: SR LATCH CONTROL 1 REGISTER R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 SRSPE SRSCKE SRSC2E SRSC1E SRRPE SRRCKE SRRC2E SRRC1E bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 SRSPE: SR Latch Peripheral Set Enable bit 1 = SR Latch is set when th
PIC16F193X/LF193X TABLE 18-2: Name ANSELA SUMMARY OF REGISTERS ASSOCIATED WITH SR LATCH MODULE Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page — — ANSA5 ANSA4 ANSA3 ANSA2 ANSA1 ANSA0 133 SRPS SRCON0 SRLEN SRQEN SRNQEN SRCON1 SRSPE SRSCKE SRCLK<2:0> SRSC2E SRSC1E SRRPE SRRCKE SRRC2E TRISA TRISA7 TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 SRPR 185 SRRC1E 186 TRISA0 132 Legend: — = unimplemented location, read as ‘0’.
PIC16F193X/LF193X NOTES: DS41364D-page 188 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 19.0 When TMR0 is written, the increment is inhibited for two instruction cycles immediately following the write. TIMER0 MODULE The Timer0 module is an 8-bit timer/counter with the following features: • • • • • • Note: 8-bit timer/counter register (TMR0) 8-bit prescaler (independent of Watchdog Timer) Programmable internal or external clock source Programmable external clock edge selection Interrupt on overflow TMR0 can be used to gate Timer1 19.1.
PIC16F193X/LF193X 19.1.3 SOFTWARE PROGRAMMABLE PRESCALER A software programmable prescaler is available for exclusive use with Timer0. The prescaler is enabled by clearing the PSA bit of the OPTION register. Note: The Watchdog Timer (WDT) uses its own independent prescaler. There are 8 prescaler options for the Timer0 module ranging from 1:2 to 1:256. The prescale values are selectable via the PS<2:0> bits of the OPTION register.
PIC16F193X/LF193X REGISTER 19-1: OPTION_REG: OPTION REGISTER R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 WPUEN INTEDG TMR0CS TMR0SE PSA R/W-1/1 R/W-1/1 R/W-1/1 PS<2:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 WPUEN: Weak Pull-up Enable bit 1 = All weak pull-ups are disabled (except MCLR, if it is enabl
PIC16F193X/LF193X NOTES: DS41364D-page 192 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 20.0 • • • • TIMER1 MODULE WITH GATE CONTROL The Timer1 module is a 16-bit timer/counter with the following features: Figure 20-1 is a block diagram of the Timer1 module.
PIC16F193X/LF193X 20.1 Timer1 Operation 20.2 The Timer1 module is a 16-bit incrementing counter which is accessed through the TMR1H:TMR1L register pair. Writes to TMR1H or TMR1L directly update the counter. The TMR1CS<1:0> and T1OSCEN bits of the T1CON register are used to select the clock source for Timer1. Table 20-2 displays the clock source selections. 20.2.1 When used with an internal clock source, the module is a timer and increments on every instruction cycle.
PIC16F193X/LF193X 20.3 Timer1 Prescaler 20.6 Timer1 has four prescaler options allowing 1, 2, 4 or 8 divisions of the clock input. The T1CKPS bits of the T1CON register control the prescale counter. The prescale counter is not directly readable or writable; however, the prescaler counter is cleared upon a write to TMR1H or TMR1L. Timer1 can be configured to count freely or the count can be enabled and disabled using Timer1 Gate circuitry. This is also referred to as Timer1 Gate Enable.
PIC16F193X/LF193X 20.6.2.1 T1G Pin Gate Operation 20.6.4 The T1G pin is one source for Timer1 Gate Control. It can be used to supply an external source to the Timer1 Gate circuitry. 20.6.2.2 Timer0 Overflow Gate Operation When Timer0 increments from FFh to 00h, a low-to-high pulse will automatically be generated and internally supplied to the Timer1 Gate circuitry. 20.6.2.
PIC16F193X/LF193X 20.7 Timer1 Interrupt The Timer1 register pair (TMR1H:TMR1L) increments to FFFFh and rolls over to 0000h. When Timer1 rolls over, the Timer1 interrupt flag bit of the PIR1 register is set. To enable the interrupt on rollover, you must set these bits: • • • • TMR1ON bit of the T1CON register TMR1IE bit of the PIE1 register PEIE bit of the INTCON register GIE bit of the INTCON register The interrupt is cleared by clearing the TMR1IF bit in the Interrupt Service Routine.
PIC16F193X/LF193X FIGURE 20-3: TIMER1 GATE ENABLE MODE TMR1GE T1GPOL T1G_IN T1CKI T1GVAL TIMER1 N FIGURE 20-4: N+1 N+2 N+3 N+4 TIMER1 GATE TOGGLE MODE TMR1GE T1GPOL T1GTM T1G_IN T1CKI T1GVAL TIMER1 DS41364D-page 198 N N+1 N+2 N+3 N+4 Preliminary N+5 N+6 N+7 N+8 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 20-5: TIMER1 GATE SINGLE-PULSE MODE TMR1GE T1GPOL T1GSPM T1GGO/ Cleared by hardware on falling edge of T1GVAL Set by software DONE Counting enabled on rising edge of T1G T1G_IN T1CKI T1GVAL TIMER1 TMR1GIF N N+1 Set by hardware on falling edge of T1GVAL Cleared by software 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 20-6: TIMER1 GATE SINGLE-PULSE AND TOGGLE COMBINED MODE TMR1GE T1GPOL T1GSPM T1GTM T1GGO/ Cleared by hardware on falling edge of T1GVAL Set by software DONE Counting enabled on rising edge of T1G T1G_IN T1CKI T1GVAL TIMER1 TMR1GIF DS41364D-page 200 N Cleared by software N+1 N+2 N+3 Set by hardware on falling edge of T1GVAL Preliminary N+4 Cleared by software 2009 Microchip Technology Inc.
PIC16F193X/LF193X 20.11 Timer1 Control Register The Timer1 Control register (T1CON), shown in Register 20-1, is used to control Timer1 and select the various features of the Timer1 module.
PIC16F193X/LF193X 20.12 Timer1 Gate Control Register The Timer1 Gate Control register (T1GCON), shown in Register 20-2, is used to control Timer1 Gate.
PIC16F193X/LF193X TABLE 20-5: Name ANSELB SUMMARY OF REGISTERS ASSOCIATED WITH TIMER1 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page — — ANSB5 ANSB4 ANSB3 ANSB2 ANSB1 ANSB0 137 CCP1CON P1M<1:0> DC1B<1:0> CCP1M<3:0> CCP2CON P2M<1:0> DC2B<1:0> CCP2M<3:0> INTCON PIE1 PIR1 PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF 99 TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 100 TMR1GIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF Holding Register for th
PIC16F193X/LF193X NOTES: DS41364D-page 204 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 21.0 TIMER2/4/6 MODULES There are up to three identical Timer2-type modules available. To maintain pre-existing naming conventions, the Timers are called Timer2, Timer4 and Timer6 (also Timer2/4/6). Note: The ‘x’ variable used in this section is used to designate Timer2, Timer4, or Timer6. For example, TxCON references T2CON, T4CON, or T6CON. PRx references PR2, PR4, or PR6.
PIC16F193X/LF193X 21.1 Timer2/4/6 Operation 21.3 The clock input to the Timer2/4/6 modules is the system instruction clock (FOSC/4). TMRx increments from 00h on each clock edge. A 4-bit counter/prescaler on the clock input allows direct input, divide-by-4 and divide-by-16 prescale options. These options are selected by the prescaler control bits, TxCKPS<1:0> of the TxCON register. The value of TMRx is compared to that of the Period register, PRx, on each clock cycle.
PIC16F193X/LF193X REGISTER 21-1: U-0 TXCON: TIMER2/TIMER4/TIMER6 CONTROL REGISTER R/W-0/0 — R/W-0/0 R/W-0/0 R/W-0/0 TOUTPS<3:0> R/W-0/0 R/W-0/0 TMRxON bit 7 R/W-0/0 TxCKPS<1:0> bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 Unimplemented: Read as ‘0’ bit 6-3 TOUTPS<3:0>: Timer Output Postscaler Select bits 0000
PIC16F193X/LF193X TABLE 21-1: Name SUMMARY OF REGISTERS ASSOCIATED WITH TIMER2/4/6 Bit 7 CCP2CON Bit 6 P2M<1:0> Bit 5 Bit 4 Bit 3 DC2B<1:0> Bit 2 Bit 1 Bit 0 CCP2M<3:0> Register on Page 231 GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE PIE3 — CCP5IE CCP4IE CCP3IE TMR6IE — TMR4IE — 102 PIR1 TMR1GIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF 103 PIR3 — CCP5IF CCP4IF CCP3IF TMR6IF — TMR4IF — INTCON PIE1
PIC16F193X/LF193X 22.0 CAPTURE/COMPARE/PWM MODULES The Capture/Compare/PWM module is a peripheral which allows the user to time and control different events, and to generate Pulse-Width Modulation (PWM) signals. In Capture mode, the peripheral allows the timing of the duration of an event. The Compare mode allows the user to trigger an external event when a predetermined amount of time has expired. The PWM mode can generate Pulse-Width Modulated signals of varying frequency and duty cycle.
PIC16F193X/LF193X 22.1 22.1.2 Capture Mode The Capture mode function described in this section is available and identical for CCP modules ECCP1, ECCP2, ECCP3, CCP4 and CCP5. Capture mode makes use of the 16-bit Timer1 resource. When an event occurs on the CCPx pin, the 16-bit CCPRxH:CCPRxL register pair captures and stores the 16-bit value of the TMR1H:TMR1L register pair, respectively.
PIC16F193X/LF193X TABLE 22-2: Name CCPxCON SUMMARY OF REGISTERS ASSOCIATED WITH CAPTURE Bit 7 Bit 6 PxM<1:0>(1) Bit 5 Bit 4 Bit 3 DCxB<1:0> Bit 1 Bit 0 CCPxM<3:0> CCPRxL Capture/Compare/PWM Register x Low Byte (LSB) CCPRxH Capture/Compare/PWM Register x High Byte (MSB) INTCON Bit 2 Register on Page 231 210 210 GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF 99 PIE1 TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 100 101 PIE2 OSFIE C2IE C1IE EEIE BCLIE LCDIE — CCP2
PIC16F193X/LF193X 22.2 22.2.2 Compare Mode The Compare mode function described in this section is available and identical for CCP modules ECCP1, ECCP2, ECCP3, CCP4 and CCP5. Compare mode makes use of the 16-bit Timer1 resource. The 16-bit value of the CCPRxH:CCPRxL register pair is constantly compared against the 16-bit value of the TMR1H:TMR1L register pair.
PIC16F193X/LF193X 22.2.5 COMPARE DURING SLEEP The Compare mode is dependent upon the system clock (FOSC) for proper operation. Since FOSC is shut down during Sleep mode, the Compare mode will not function properly during Sleep.
PIC16F193X/LF193X 22.3 FIGURE 22-3: PWM Overview Pulse-Width Modulation (PWM) is a scheme that provides power to a load by switching quickly between fully on and fully off states. The PWM signal resembles a square wave where the high portion of the signal is considered the on state and the low portion of the signal is considered the off state. The high portion, also known as the pulse width, can vary in time and is defined in steps.
PIC16F193X/LF193X 22.3.2 SETUP FOR PWM OPERATION The following steps should be taken when configuring the CCP module for standard PWM operation: 1. 2. 3. 4. 5. 6. Disable the CCPx pin output driver by setting the associated TRIS bit. Load the PRx register with the PWM period value. Configure the CCP module for the PWM mode by loading the CCPxCON register with the appropriate values. Load the CCPRxL register and the DCxBx bits of the CCPxCON register, with the PWM duty cycle value.
PIC16F193X/LF193X 22.3.6 PWM RESOLUTION EQUATION 22-4: The resolution determines the number of available duty cycles for a given period. For example, a 10-bit resolution will result in 1024 discrete duty cycles, whereas an 8-bit resolution will result in 256 discrete duty cycles. The maximum PWM resolution is 10 bits when PRx is 255. The resolution is a function of the PRx register value as shown by Equation 22-4.
PIC16F193X/LF193X 22.3.7 OPERATION IN SLEEP MODE In Sleep mode, the TMRx register will not increment and the state of the module will not change. If the CCPx pin is driving a value, it will continue to drive that value. When the device wakes up, TMRx will continue from its previous state. 22.3.8 CHANGES IN SYSTEM CLOCK FREQUENCY The PWM frequency is derived from the system clock frequency. Any changes in the system clock frequency will result in changes to the PWM frequency. See Section 5.
PIC16F193X/LF193X 22.4 To select an Enhanced PWM Output mode, the PxM bits of the CCPxCON register must be configured appropriately. PWM (Enhanced Mode) The enhanced PWM function described in this section is available for CCP modules ECCP1, ECCP2 and ECCP3, with any differences between modules noted. The PWM outputs are multiplexed with I/O pins and are designated PxA, PxB, PxC and PxD.
PIC16F193X/LF193X TABLE 22-8: EXAMPLE PIN ASSIGNMENTS FOR VARIOUS PWM ENHANCED MODES ECCP Mode PxM<1:0> CCPx/PxA PxB PxC PxD Single 00 Yes(1) Yes(1) Yes(1) Yes(1) Half-Bridge 10 Yes Yes No No Full-Bridge, Forward 01 Yes Yes Yes Yes Full-Bridge, Reverse 11 Yes Yes Yes Yes Note 1: PWM Steering enables outputs in Single mode.
PIC16F193X/LF193X FIGURE 22-7: EXAMPLE ENHANCED PWM OUTPUT RELATIONSHIPS (ACTIVE-LOW STATE) PxM<1:0> Signal PRx+1 Pulse Width 0 Period 00 (Single Output) PxA Modulated PxA Modulated 10 (Half-Bridge) Delay Delay PxB Modulated PxA Active 01 (Full-Bridge, Forward) PxB Inactive PxC Inactive PxD Modulated PxA Inactive 11 (Full-Bridge, Reverse) PxB Modulated PxC Active PxD Inactive Relationships: • Period = 4 * TOSC * (PRx + 1) * (TMRx Prescale Value) • Pulse Width = TOSC * (CCPRxL<7:0>:CCPxC
PIC16F193X/LF193X 22.4.1 HALF-BRIDGE MODE In Half-Bridge mode, two pins are used as outputs to drive push-pull loads. The PWM output signal is output on the CCPx/PxA pin, while the complementary PWM output signal is output on the PxB pin (see Figure 22-9). This mode can be used for Half-Bridge applications, as shown in Figure 22-9, or for Full-Bridge applications, where four power switches are being modulated with two PWM signals.
PIC16F193X/LF193X 22.4.2 FULL-BRIDGE MODE In Full-Bridge mode, all four pins are used as outputs. An example of Full-Bridge application is shown in Figure 22-10. In the Forward mode, pin CCPx/PxA is driven to its active state, pin PxD is modulated, while PxB and PxC will be driven to their inactive state as shown in Figure 22-11. In the Reverse mode, PxC is driven to its active state, pin PxB is modulated, while PxA and PxD will be driven to their inactive state as shown Figure 22-11.
PIC16F193X/LF193X FIGURE 22-11: EXAMPLE OF FULL-BRIDGE PWM OUTPUT Forward Mode Period PxA (2) Pulse Width PxB(2) PxC(2) PxD(2) (1) (1) Reverse Mode Period Pulse Width PxA(2) PxB(2) PxC(2) PxD(2) (1) Note 1: 2: (1) At this time, the TMRx register is equal to the PRx register. Output signal is shown as active-high. 2009 Microchip Technology Inc.
PIC16F193X/LF193X 22.4.2.1 Direction Change in Full-Bridge Mode In the Full-Bridge mode, the PxM1 bit in the CCPxCON register allows users to control the forward/reverse direction. When the application firmware changes this direction control bit, the module will change to the new direction on the next PWM cycle. A direction change is initiated in software by changing the PxM1 bit of the CCPxCON register.
PIC16F193X/LF193X FIGURE 22-13: EXAMPLE OF PWM DIRECTION CHANGE AT NEAR 100% DUTY CYCLE Forward Period t1 Reverse Period PxA PxB PW PxC PxD PW TON External Switch C TOFF External Switch D Potential Shoot-Through Current Note 1: 22.4.3 T = TOFF – TON All signals are shown as active-high. 2: TON is the turn on delay of power switch QC and its driver. 3: TOFF is the turn off delay of power switch QD and its driver.
PIC16F193X/LF193X FIGURE 22-14: PWM AUTO-SHUTDOWN WITH FIRMWARE RESTART (PXRSEN = 0) Missing Pulse (Auto-Shutdown) Timer Overflow Timer Overflow Missing Pulse (CCPxASE not clear) Timer Overflow Timer Overflow Timer Overflow PWM Period PWM Activity Start of PWM Period Shutdown Event CCPxASE bit Shutdown Event Occurs 22.4.4 AUTO-RESTART MODE The Enhanced PWM can be configured to automatically restart the PWM signal once the auto-shutdown condition has been removed.
PIC16F193X/LF193X 22.4.5 PROGRAMMABLE DEAD-BAND DELAY MODE FIGURE 22-16: In Half-Bridge applications where all power switches are modulated at the PWM frequency, the power switches normally require more time to turn off than to turn on. If both the upper and lower power switches are switched at the same time (one turned on, and the other turned off), both switches may be on for a short period of time until one switch completely turns off.
PIC16F193X/LF193X 22.4.6 PWM STEERING MODE In Single Output mode, PWM steering allows any of the PWM pins to be the modulated signal. Additionally, the same PWM signal can be simultaneously available on multiple pins. Once the Single Output mode is selected (CCPxM<3:2> = 11 and PxM<1:0> = 00 of the CCPxCON register), the user firmware can bring out the same PWM signal to one, two, three or four output pins by setting the appropriate STRx bits of the PSTRxCON register, as shown in Table 22-8.
PIC16F193X/LF193X 22.4.6.1 Steering Synchronization The STRxSYNC bit of the PSTRxCON register gives the user two selections of when the steering event will happen. When the STRxSYNC bit is ‘0’, the steering event will happen at the end of the instruction that writes to the PSTRxCON register. In this case, the output signal at the Px pins may be an incomplete PWM waveform. This operation is useful when the user firmware needs to immediately remove a PWM signal from the pin.
PIC16F193X/LF193X TABLE 22-9: Name CCPxCON CCPxAS SUMMARY OF REGISTERS ASSOCIATED WITH ENHANCED PWM Bit 7 Bit 6 Bit 5 PxM<1:0>(1) CCPxASE Bit 4 Bit 3 DCxB<1:0> CCPxAS<2:0> Bit 2 Bit 1 Register on Page Bit 0 CCPxM<3:0> 231 PSSxAC<1:0> PSSxBD<1:0> 234 CCPTMRS0 C4TSEL<1:0> C3TSEL<1:0> C2TSEL<1:0> C1TSEL<1:0> 232 CCPTMRS1 — — — — — — C5TSEL<1:0> 233 GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF PIE1 TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 100 PIE2 OSFI
PIC16F193X/LF193X REGISTER 22-1: R/W-00 CCPxCON: CCPx CONTROL REGISTER R/W-0/0 R/W-0/0 PxM<1:0>(1) R/W-0/0 R/W-0/0 DCxB<1:0> R/W-0/0 R/W-0/0 R/W-0/0 CCPxM<3:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Reset ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-6 PxM<1:0>: Enhanced PWM Output Configuration bits(1) Capture mode: Unused Compare mode: Unused If CCPx
PIC16F193X/LF193X REGISTER 22-2: R/W-0/0 CCPTMRS0: PWM TIMER SELECTION CONTROL REGISTER 0 R/W-0/0 C4TSEL<1:0> R/W-0/0 R/W-0/0 R/W-0/0 C3TSEL<1:0> R/W-0/0 R/W-0/0 C2TSEL<1:0> R/W-0/0 C1TSEL<1:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-6 C4TSEL<1:0>: CCP4 Timer Selection 00 = CCP4 is based off Timer 2
PIC16F193X/LF193X REGISTER 22-3: CCPTMRS1: PWM TIMER SELECTION CONTROL REGISTER 1 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — R/W-0/0 bit 7 R/W-0/0 C5TSEL<1:0> bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-2 Unimplemented: Read as ‘0’ bit 1-0 C5TSEL<1:0>: CCP5 Timer Selection 00 = CCP5 is based off Timer 2 in PWM M
PIC16F193X/LF193X REGISTER 22-4: R/W-0/0 CCPxAS: CCPX AUTO-SHUTDOWN CONTROL REGISTER R/W-0/0 CCPxASE R/W-0/0 R/W-0/0 CCPxAS<2:0> R/W-0/0 R/W-0/0 R/W-0/0 PSSxAC<1:0> R/W-0/0 PSSxBD<1:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 CCPxASE: CCPx Auto-Shutdown Event Status bit 1 = A shutdown event has occurr
PIC16F193X/LF193X REGISTER 22-5: R/W-0/0 PWMxCON: ENHANCED PWM CONTROL REGISTER R/W-0/0 R/W-0/0 R/W-0/0 PxRSEN R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 PxDC<6:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 PxRSEN: PWM Restart Enable bit 1 = Upon auto-shutdown, the CCPxASE bit clears automatically once the shutdown
PIC16F193X/LF193X PSTRxCON: PWM STEERING CONTROL REGISTER(1) REGISTER 22-6: U-0 U-0 U-0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-1/1 — — — STRxSYNC STRxD STRxC STRxB STRxA bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-5 Unimplemented: Read as ‘0’ bit 4 STRxSYNC: Steering Sync bit 1 = Output steering updat
PIC16F193X/LF193X 23.0 MASTER SYNCHRONOUS SERIAL PORT (MSSP) MODULE 23.1 Master SSP (MSSP) Module Overview The Master Synchronous Serial Port (MSSP) module is a serial interface useful for communicating with other peripheral or microcontroller devices. These peripheral devices may be Serial EEPROMs, shift registers, display drivers, A/D converters, etc.
PIC16F193X/LF193X The I2C interface supports the following modes and features: • • • • • • • • • • • • • Master mode Slave mode Byte NACKing (Slave mode) Limited Multi-master support 7-bit and 10-bit addressing Start and Stop interrupts Interrupt masking Clock stretching Bus collision detection General call address matching Address masking Address Hold and Data Hold modes Selectable SDA hold times Figure 23-2 is a block diagram of the I2C interface module in Master mode.
PIC16F193X/LF193X FIGURE 23-3: MSSP BLOCK DIAGRAM (I2C™ SLAVE MODE) Internal Data Bus Read Write SSPBUF Reg SCL Shift Clock SSPSR Reg SDA MSb LSb SSPMSK Reg Match Detect Addr Match SSPADD Reg Start and Stop bit Detect 2009 Microchip Technology Inc.
PIC16F193X/LF193X 23.2 SPI Mode Overview The Serial Peripheral Interface (SPI) bus is a synchronous serial data communication bus that operates in Full Duplex mode. Devices communicate in a master/slave environment where the master device initiates the communication. A slave device is controlled through a chip select known as Slave Select. After 8 bits have been shifted out, the master and slave have exchanged register values.
PIC16F193X/LF193X FIGURE 23-4: SPI MASTER AND MULTIPLE SLAVE CONNECTION SPI Master SCK SCK SDO SDI SDI SDO General I/O General I/O SS General I/O SCK SDI SDO SPI Slave #1 SPI Slave #2 SS SCK SDI SDO SPI Slave #3 SS 23.2.1 SPI MODE REGISTERS The MSSP module has five registers for SPI mode operation.
PIC16F193X/LF193X 23.2.2 SPI MODE OPERATION When initializing the SPI, several options need to be specified. This is done by programming the appropriate control bits (SSPCON1<5:0> and SSPSTAT<7:6>).
PIC16F193X/LF193X 23.2.3 SPI MASTER MODE The master can initiate the data transfer at any time because it controls the SCK line. The master determines when the slave (Processor 2, Figure 23-5) is to broadcast data by the software protocol. In Master mode, the data is transmitted/received as soon as the SSPBUF register is written to. If the SPI is only going to receive, the SDO output could be disabled (programmed as an input).
PIC16F193X/LF193X 23.2.4 SPI SLAVE MODE 23.2.5 In Slave mode, the data is transmitted and received as external clock pulses appear on SCK. When the last bit is latched, the SSPIF interrupt flag bit is set. Before enabling the module in SPI Slave mode, the clock line must match the proper Idle state. The clock line can be observed by reading the SCK pin. The Idle state is determined by the CKP bit of the SSPCON1 register.
PIC16F193X/LF193X FIGURE 23-7: SPI DAISY-CHAIN CONNECTION SPI Master SCK SCK SDO SDI SDI SPI Slave #1 SDO General I/O SS SCK SDI SPI Slave #2 SDO SS SCK SDI SPI Slave #3 SDO SS FIGURE 23-8: SLAVE SELECT SYNCHRONOUS WAVEFORM SS SCK (CKP = 0 CKE = 0) SCK (CKP = 1 CKE = 0) Write to SSPBUF Shift register SSPSR and bit count are reset SSPBUF to SSPSR SDO bit 7 bit 6 bit 7 SDI bit 6 bit 0 bit 0 bit 7 bit 7 Input Sample SSPIF Interrupt Flag SSPSR to SSPBUF 2009 Microchip Technology
PIC16F193X/LF193X FIGURE 23-9: SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 0) SS Optional SCK (CKP = 0 CKE = 0) SCK (CKP = 1 CKE = 0) Write to SSPBUF Valid SDO bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 SDI bit 0 bit 7 Input Sample SSPIF Interrupt Flag SSPSR to SSPBUF Write Collision detection active FIGURE 23-10: SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 1) SS Not Optional SCK (CKP = 0 CKE = 1) SCK (CKP = 1 CKE = 1) Write to SSPBUF Valid SDO bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1
PIC16F193X/LF193X 23.2.6 SPI OPERATION IN SLEEP MODE In SPI Master mode, module clocks may be operating at a different speed than when in full power mode; in the case of the Sleep mode, all clocks are halted. Special care must be taken by the user when the MSSP clock is much faster than the system clock. In Slave mode, when MSSP interrupts are enabled, after the master completes sending data, an MSSP interrupt will wake the controller from Sleep.
PIC16F193X/LF193X 23.3 I2C Mode Overview FIGURE 23-11: The Inter-Integrated Circuit Bus (I²C) is a multi-master serial data communication bus. Devices communicate in a master/slave environment where the master devices initiate the communication. A Slave device is controlled through addressing. VDD SCL The I2C bus specifies two signal connections: • Serial Clock (SCL) • Serial Data (SDA) Figure 23-11 shows a typical connection between two processors configured as master and slave devices.
PIC16F193X/LF193X When one device is transmitting a logical one, or letting the line float, and a second device is transmitting a logical zero, or holding the line low, the first device can detect that the line is not a logical one. This detection, when used on the SCL line, is called clock stretching. Clock stretching gives slave devices a mechanism to control the flow of data. When this detection is used on the SDA line, it is called arbitration.
PIC16F193X/LF193X TABLE 23-2: I2C BUS TERMS TERM Transmitter 23.4.5 Description The device which shifts data out onto the bus. Receiver The device which shifts data in from the bus. Master The device that initiates a transfer, generates clock signals and terminates a transfer. Slave The device addressed by the master. Multi-master A bus with more than one device that can initiate data transfers. Arbitration Procedure to ensure that only one master at a time controls the bus.
PIC16F193X/LF193X FIGURE 23-12: I2C START AND STOP CONDITIONS SDA SCL S Start P Change of Change of Data Allowed Data Allowed Condition FIGURE 23-13: Stop Condition I2C RESTART CONDITION Sr Change of Change of Data Allowed Restart Data Allowed Condition 2009 Microchip Technology Inc.
PIC16F193X/LF193X 23.4.9 ACKNOWLEDGE SEQUENCE 23.5 The 9th SCL pulse for any transferred byte in I2C is dedicated as an Acknowledge. It allows receiving devices to respond back to the transmitter by pulling the SDA line low. The transmitter must release control of the line during this time to shift in the response. The Acknowledge (ACK) is an active-low signal, pulling the SDA line low indicated to the transmitter that the device has received the transmitted data and is ready to receive more.
PIC16F193X/LF193X 23.5.2 SLAVE RECEPTION 23.5.2.2 When the R/W bit of a matching received address byte is clear, the R/W bit of the SSPSTAT register is cleared. The received address is loaded into the SSPBUF register and acknowledged. When the overflow condition exists for a received address, then not Acknowledge is given. An overflow condition is defined as either bit BF bit of the SSPSTAT register is set, or bit SSPOV bit of the SSPCON1 register is set.
DS41364D-page 254 Preliminary SSPOV BF SSPIF S 1 A7 2 A6 3 A5 4 A4 5 A3 6 A2 7 A1 8 9 ACK 1 D7 2 D6 4 D4 5 D3 6 D2 7 D1 SSPBUF is read Cleared by software 3 D5 Receiving Data 8 9 2 D6 First byte of data is available in SSPBUF 1 D0 ACK D7 4 D4 5 D3 6 D2 7 D1 SSPOV set because SSPBUF is still full. ACK is not sent.
2009 Microchip Technology Inc. Preliminary CKP SSPOV BF SSPIF 1 SCL S A7 2 A6 3 A5 4 A4 5 A3 6 A2 7 A1 8 9 R/W=0 ACK SEN 2 D6 3 D5 4 D4 5 D3 6 D2 7 D1 8 D0 CKP is written to ‘1’ in software, releasing SCL SSPBUF is read Cleared by software Clock is held low until CKP is set to ‘1’ 1 D7 Receive Data 9 ACK SEN 3 D5 4 D4 5 D3 First byte of data is available in SSPBUF 6 D2 7 D1 SSPOV set because SSPBUF is still full. ACK is not sent.
DS41364D-page 256 Preliminary P S ACKTIM CKP ACKDT BF SSPIF S Receiving Address 1 3 5 6 7 8 ACK the received byte Slave software clears ACKDT to Address is read from SSBUF If AHEN = 1: SSPIF is set 4 ACKTIM set by hardware on 8th falling edge of SCL When AHEN=1: CKP is cleared by hardware and SCL is stretched 2 A7 A6 A5 A4 A3 A2 A1 Receiving Data 9 2 3 4 5 6 7 ACKTIM cleared by hardware in 9th rising edge of SCL When DHEN=1: CKP is cleared by hardware on 8th falling edge of
2009 Microchip Technology Inc.
PIC16F193X/LF193X 23.5.3 SLAVE TRANSMISSION 23.5.3.2 7-bit Transmission When the R/W bit of the incoming address byte is set and an address match occurs, the R/W bit of the SSPSTAT register is set. The received address is loaded into the SSPBUF register, and an ACK pulse is sent by the slave on the ninth bit. A master device can transmit a read request to a slave, and then clock data out of the slave.
2009 Microchip Technology Inc.
PIC16F193X/LF193X 23.5.3.3 7-bit Transmission with Address Hold Enabled Setting the AHEN bit of the SSPCON3 register enables additional clock stretching and interrupt generation after the 8th falling edge of a received matching address. Once a matching address has been clocked in, CKP is cleared and the SSPIF interrupt is set. Figure 23-18 displays a standard waveform of a 7-bit Address Slave Transmission with AHEN enabled. 1. 2. Bus starts Idle.
2009 Microchip Technology Inc. Preliminary D/A R/W ACKTIM CKP ACKSTAT ACKDT BF SSPIF S Receiving Address 2 4 5 6 7 8 Slave clears ACKDT to ACK address ACKTIM is set on 8th falling edge of SCL 9 ACK When R/W = 1; CKP is always cleared after ACK R/W = 1 Received address is read from SSPBUF 3 When AHEN = 1; CKP is cleared by hardware after receiving matching address.
PIC16F193X/LF193X 23.5.4 SLAVE MODE 10-BIT ADDRESS RECEPTION 23.5.5 This section describes a standard sequence of events for the MSSP module configured as an I2C Slave in 10-bit Addressing mode. Figure 23-19 is used as a visual reference for this description. This is a step by step process of what must be done by slave software to accomplish I2C communication. 1. 2. 3. 4. 5. 6. 7. 8. Bus starts Idle.
2009 Microchip Technology Inc.
DS41364D-page 264 Preliminary ACKTIM CKP UA ACKDT BF 2 1 5 0 6 A9 7 A8 Set by hardware on 9th falling edge 4 1 ACKTIM is set by hardware on 8th falling edge of SCL If when AHEN = 1; on the 8th falling edge of SCL of an address byte, CKP is cleared Slave software clears ACKDT to ACK the received byte 3 1 8 R/W = 0 9 ACK UA 2 A6 3 A5 4 A4 5 A3 6 A2 7 A1 Update to SSPADD is not allowed until 9th falling edge of SCL SSPBUF can be read anytime before the next received byt
2009 Microchip Technology Inc.
PIC16F193X/LF193X 23.5.6 CLOCK STRETCHING 23.5.6.2 Clock stretching occurs when a device on the bus holds the SCL line low effectively pausing communication. The slave may stretch the clock to allow more time to handle data or prepare a response for the master device. A master device is not concerned with stretching as anytime it is active on the bus and not transferring data it is stretching.
PIC16F193X/LF193X 23.5.8 GENERAL CALL ADDRESS SUPPORT In 10-bit Address mode, the UA bit will not be set on the reception of the general call address. The slave will prepare to receive the second byte as data, just as it would in 7-bit mode. The addressing procedure for the I2C bus is such that the first byte after the Start condition usually determines which device will be the slave addressed by the master device. The exception is the general call address which can address all devices.
PIC16F193X/LF193X 23.6 I2C Master Mode 23.6.1 Master mode is enabled by setting and clearing the appropriate SSPM bits in the SSPCON1 register and by setting the SSPEN bit. In Master mode, the SCL and SDA lines are set as inputs and are manipulated by the MSSP hardware. Master mode of operation is supported by interrupt generation on the detection of the Start and Stop conditions. The Stop (P) and Start (S) bits are cleared from a Reset or when the MSSP module is disabled.
PIC16F193X/LF193X 23.6.2 CLOCK ARBITRATION Clock arbitration occurs when the master, during any receive, transmit or Repeated Start/Stop condition, releases the SCL pin (SCL allowed to float high). When the SCL pin is allowed to float high, the Baud Rate Generator (BRG) is suspended from counting until the SCL pin is actually sampled high. When the SCL pin is sampled high, the Baud Rate Generator is reloaded with the contents of SSPADD<7:0> and begins counting.
PIC16F193X/LF193X 23.6.4 I2C MASTER MODE START CONDITION TIMING ister will be automatically cleared by hardware; the Baud Rate Generator is suspended, leaving the SDA line held low and the Start condition is complete. To initiate a Start condition, the user sets the Start Enable bit, SEN bit of the SSPCON2 register. If the SDA and SCL pins are sampled high, the Baud Rate Generator is reloaded with the contents of SSPADD<7:0> and starts its count.
PIC16F193X/LF193X 23.6.5 I2C MASTER MODE REPEATED START CONDITION TIMING SSPCON2 register will be automatically cleared and the Baud Rate Generator will not be reloaded, leaving the SDA pin held low. As soon as a Start condition is detected on the SDA and SCL pins, the S bit of the SSPSTAT register will be set. The SSPIF bit will not be set until the Baud Rate Generator has timed out.
PIC16F193X/LF193X 23.6.6 I2C MASTER MODE TRANSMISSION 23.6.6.3 Transmission of a data byte, a 7-bit address or the other half of a 10-bit address is accomplished by simply writing a value to the SSPBUF register. This action will set the Buffer Full flag bit, BF, and allow the Baud Rate Generator to begin counting and start the next transmission. Each bit of address/data will be shifted out onto the SDA pin after the falling edge of SCL is asserted.
2009 Microchip Technology Inc.
PIC16F193X/LF193X 23.6.7 I2C MASTER MODE RECEPTION 23.6.7.4 Master mode reception is enabled by programming the Receive Enable bit, RCEN bit of the SSPCON2 register. Note: The MSSP module must be in an Idle state before the RCEN bit is set or the RCEN bit will be disregarded. The Baud Rate Generator begins counting and on each rollover, the state of the SCL pin changes (high-to-low/low-to-high) and data is shifted into the SSPSR.
2009 Microchip Technology Inc.
PIC16F193X/LF193X 23.6.8 ACKNOWLEDGE SEQUENCE TIMING 23.6.9 A Stop bit is asserted on the SDA pin at the end of a receive/transmit by setting the Stop Sequence Enable bit, PEN bit of the SSPCON2 register. At the end of a receive/transmit, the SCL line is held low after the falling edge of the ninth clock. When the PEN bit is set, the master will assert the SDA line low. When the SDA line is sampled low, the Baud Rate Generator is reloaded and counts down to ‘0’.
PIC16F193X/LF193X 23.6.10 SLEEP OPERATION 23.6.13 2 While in Sleep mode, the I C slave module can receive addresses or data and when an address match or complete byte transfer occurs, wake the processor from Sleep (if the MSSP interrupt is enabled). 23.6.11 EFFECTS OF A RESET A Reset disables the MSSP module and terminates the current transfer. 23.6.
PIC16F193X/LF193X 23.6.13.1 Bus Collision During a Start Condition During a Start condition, a bus collision occurs if: a) b) SDA or SCL are sampled low at the beginning of the Start condition (Figure 23-32). SCL is sampled low before SDA is asserted low (Figure 23-33). During a Start condition, both the SDA and the SCL pins are monitored. If the SDA pin is sampled low during this count, the BRG is reset and the SDA line is asserted early (Figure 23-34).
PIC16F193X/LF193X FIGURE 23-34: BUS COLLISION DURING START CONDITION (SCL = 0) SDA = 0, SCL = 1 TBRG TBRG SDA Set SEN, enable Start sequence if SDA = 1, SCL = 1 SCL SCL = 0 before SDA = 0, bus collision occurs. Set BCLIF. SEN SCL = 0 before BRG time-out, bus collision occurs. Set BCLIF.
PIC16F193X/LF193X 23.6.13.2 Bus Collision During a Repeated Start Condition If SDA is low, a bus collision has occurred (i.e., another master is attempting to transmit a data ‘0’, Figure 23-35). If SDA is sampled high, the BRG is reloaded and begins counting. If SDA goes from high-to-low before the BRG times out, no bus collision occurs because no two masters can assert SDA at exactly the same time.
PIC16F193X/LF193X 23.6.13.3 Bus Collision During a Stop Condition The Stop condition begins with SDA asserted low. When SDA is sampled low, the SCL pin is allowed to float. When the pin is sampled high (clock arbitration), the Baud Rate Generator is loaded with SSPADD and counts down to 0. After the BRG times out, SDA is sampled. If SDA is sampled low, a bus collision has occurred. This is due to another master attempting to drive a data ‘0’ (Figure 23-37).
PIC16F193X/LF193X TABLE 23-3: SUMMARY OF REGISTERS ASSOCIATED WITH I2C™ OPERATION Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset Values on Page: GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF 99 PIE1 TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 100 PIE2 OSFIE C2IE C1IE EEIE BCLIE — — CCP2IE(1) 101 PIR1 TMR1GIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF 103 PIR2 OSFIF C2IF C1IF EEIF BCLIF — — CCP2IF(1) 104 TRISC7 TRISC6 TRISC5 TRISC4 TRI
PIC16F193X/LF193X 23.7 Baud Rate Generator The MSSP module has a Baud Rate Generator available for clock generation in both I2C and SPI Master modes. The Baud Rate Generator (BRG) reload value is placed in the SSPADD register (Register 23-6). When a write occurs to SSPBUF, the Baud Rate Generator will automatically begin counting down. Once the given operation is complete, the internal clock will automatically stop counting and the clock pin will remain in its last state. clock line.
PIC16F193X/LF193X REGISTER 23-1: SSPSTAT: SSP STATUS REGISTER R/W-0/0 R/W-0/0 R-0/0 R-0/0 R-0/0 R-0/0 R-0/0 R-0/0 SMP CKE D/A P S R/W UA BF bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 SMP: SPI Data Input Sample bit SPI Master mode: 1 = Input data sampled at end of data output time 0 = Input data sam
PIC16F193X/LF193X REGISTER 23-2: SSPCON1: SSP CONTROL REGISTER 1 R/C/HS-0/0 R/C/HS-0/0 R/W-0/0 R/W-0/0 WCOL SSPOV SSPEN CKP R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 SSPM<3:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared HS = Bit is set by hardware C = User cleared bit 7 WCOL: Write Collision Detect bit Master mode:
PIC16F193X/LF193X REGISTER 23-3: SSPCON2: SSP CONTROL REGISTER 2 R/W-0/0 R-0/0 R/W-0/0 R/S/HS-0/0 R/S/HS-0/0 R/S/HS-0/0 R/S/HS-0/0 R/W/HS-0/0 GCEN ACKSTAT ACKDT ACKEN RCEN PEN RSEN SEN bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared HC = Cleared by hardware S = User set bit 7 GCEN: General Call Enable bit (
PIC16F193X/LF193X REGISTER 23-4: SSPCON3: SSP CONTROL REGISTER 3 R-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 ACKTIM PCIE SCIE BOEN SDAHT SBCDE AHEN DHEN bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 ACKTIM: Acknowledge Time Status bit (I2C mode only)(3) 1 = Indicates the I2C bus is i
PIC16F193X/LF193X REGISTER 23-5: R/W-1/1 SSPMSK: SSP MASK REGISTER R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 MSK<7:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-1 MSK<7:1>: Mask bits 1 = The received address bit n is compared to SSPADD to detect I2C address match 0 = The received address bi
PIC16F193X/LF193X 24.
PIC16F193X/LF193X FIGURE 24-2: EUSART RECEIVE BLOCK DIAGRAM SPEN CREN RX/DT pin Baud Rate Generator Data Recovery FOSC SPBRGH SPBRGL x4 x16 x64 SYNC 1 X 0 0 0 BRGH X 1 1 0 0 BRG16 X 1 0 1 0 (8) ••• 7 1 LSb 0 START RX9 ÷n BRG16 Multiplier Stop RCIDL RSR Register MSb Pin Buffer and Control +1 OERR n FERR RX9D RCREG Register 8 FIFO Data Bus RCIF RCIE Interrupt The operation of the EUSART module is controlled through three registers: • Transmit Status and Control (TXSTA)
PIC16F193X/LF193X 24.1 24.1.1.2 EUSART Asynchronous Mode The EUSART transmits and receives data using the standard non-return-to-zero (NRZ) format. NRZ is implemented with two levels: a VOH mark state which represents a ‘1’ data bit, and a VOL space state which represents a ‘0’ data bit. NRZ refers to the fact that consecutively transmitted data bits of the same value stay at the output level of that bit without returning to a neutral level between each bit transmission.
PIC16F193X/LF193X 24.1.1.4 TSR Status 24.1.1.6 The TRMT bit of the TXSTA register indicates the status of the TSR register. This is a read-only bit. The TRMT bit is set when the TSR register is empty and is cleared when a character is transferred to the TSR register from the TXREG. The TRMT bit remains clear until all bits have been shifted out of the TSR register. No interrupt logic is tied to this bit, so the user has to poll this bit to determine the TSR status. Note: 24.1.1.5 1. 2. 3.
PIC16F193X/LF193X TABLE 24-1: SUMMARY OF REGISTERS ASSOCIATED WITH ASYNCHRONOUS TRANSMISSION Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page ABDOVF RCIDL — SCKP BRG16 — WUE ABDEN 300 GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF 99 PIE1 TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 100 PIR1 TMR1GIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF 103 SPEN RX9 SREN CREN ADDEN FERR OERR RX9D Name BAUDCON INTCON RCSTA 299 SPBRGL BRG<7:0>
PIC16F193X/LF193X 24.1.2 EUSART ASYNCHRONOUS RECEIVER 24.1.2.2 The Asynchronous mode is typically used in RS-232 systems. The receiver block diagram is shown in Figure 24-2. The data is received on the RX/DT pin and drives the data recovery block. The data recovery block is actually a high-speed shifter operating at 16 times the baud rate, whereas the serial Receive Shift Register (RSR) operates at the bit rate.
PIC16F193X/LF193X 24.1.2.4 Receive Framing Error 24.1.2.7 Each character in the receive FIFO buffer has a corresponding framing error Status bit. A framing error indicates that a Stop bit was not seen at the expected time. The framing error status is accessed via the FERR bit of the RCSTA register. The FERR bit represents the status of the top unread character in the receive FIFO. Therefore, the FERR bit must be read before reading the RCREG.
PIC16F193X/LF193X 24.1.2.8 Asynchronous Reception Set-up: 24.1.2.9 1. Initialize the SPBRGH, SPBRGL register pair and the BRGH and BRG16 bits to achieve the desired baud rate (see Section 24.3 “EUSART Baud Rate Generator (BRG)”). 2. Clear the ANSEL bit for the RX pin (if applicable). 3. Enable the serial port by setting the SPEN bit. The SYNC bit must be clear for asynchronous operation. 4. If interrupts are desired, set the RCIE bit of the PIE1 register and the GIE and PEIE bits of the INTCON register.
PIC16F193X/LF193X TABLE 24-2: SUMMARY OF REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page ABDOVF RCIDL — SCKP BRG16 — WUE ABDEN 300 GIE PEIE TMR0IE INTE IOCIE TMR0IF INTF IOCIF 99 TMR1GIE ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 100 PIR1 TMR1GIF ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF 103 RCREG EUSART Receive Data Register CREN ADDEN FERR OERR RX9D Name BAUDCON INTCON PIE1 RCSTA SPEN R
PIC16F193X/LF193X 24.2 Clock Accuracy with Asynchronous Operation The factory calibrates the internal oscillator block output (INTOSC). However, the INTOSC frequency may drift as VDD or temperature changes, and this directly affects the asynchronous baud rate. Two methods may be used to adjust the baud rate clock, but both require a reference clock source of some kind. REGISTER 24-1: The first (preferred) method uses the OSCTUNE register to adjust the INTOSC output.
PIC16F193X/LF193X RCSTA: RECEIVE STATUS AND CONTROL REGISTER(1) REGISTER 24-2: R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R-0/0 R-0/0 R-x/x SPEN RX9 SREN CREN ADDEN FERR OERR RX9D bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 SPEN: Serial Port Enable bit 1 = Serial port enabled (configures RX/DT and TX/CK
PIC16F193X/LF193X REGISTER 24-3: BAUDCON: BAUD RATE CONTROL REGISTER R-0/0 R-1/1 U-0 R/W-0/0 R/W-0/0 U-0 R/W-0/0 R/W-0/0 ABDOVF RCIDL — SCKP BRG16 — WUE ABDEN bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 ABDOVF: Auto-Baud Detect Overflow bit Asynchronous mode: 1 = Auto-baud timer overflowed 0 = Auto-
PIC16F193X/LF193X 24.3 EXAMPLE 24-1: EUSART Baud Rate Generator (BRG) The Baud Rate Generator (BRG) is an 8-bit or 16-bit timer that is dedicated to the support of both the asynchronous and synchronous EUSART operation. By default, the BRG operates in 8-bit mode. Setting the BRG16 bit of the BAUDCON register selects 16-bit mode.
PIC16F193X/LF193X TABLE 24-3: BAUD RATE FORMULAS Configuration Bits BRG/EUSART Mode Baud Rate Formula 0 8-bit/Asynchronous FOSC/[64 (n+1)] 0 1 8-bit/Asynchronous 0 1 0 16-bit/Asynchronous 0 1 1 16-bit/Asynchronous 1 0 x 8-bit/Synchronous 1 x 16-bit/Synchronous SYNC BRG16 BRGH 0 0 0 1 Legend: Name BAUDCON SUMMARY OF REGISTERS ASSOCIATED WITH THE BAUD RATE GENERATOR Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page ABDOVF RCIDL — SCKP BRG16 — WUE
PIC16F193X/LF193X TABLE 24-5: BAUD RATES FOR ASYNCHRONOUS MODES SYNC = 0, BRGH = 0, BRG16 = 0 BAUD RATE FOSC = 32.000 MHz Actual Rate % Error SPBRG value (decimal) FOSC = 20.000 MHz Actual Rate % Error SPBRG value (decimal) FOSC = 18.432 MHz Actual Rate % Error SPBRG value (decimal) FOSC = 11.0592 MHz Actual Rate % Error SPBRG value (decimal) 300 — — — — — — — — — — — — 1200 — — — 1221 1.73 255 1200 0.00 239 1200 0.00 143 2400 2404 0.16 207 2404 0.
PIC16F193X/LF193X TABLE 24-5: BAUD RATES FOR ASYNCHRONOUS MODES (CONTINUED) SYNC = 0, BRGH = 1, BRG16 = 0 BAUD RATE FOSC = 8.000 MHz Actual Rate % Error SPBRG value (decimal) FOSC = 4.000 MHz Actual Rate % Error SPBRG value (decimal) FOSC = 3.6864 MHz Actual Rate FOSC = 1.000 MHz % Error SPBRG value (decimal) Actual Rate % Error SPBRG value (decimal) 300 1200 — — — — — — — 1202 — 0.16 — 207 — 1200 — 0.00 — 191 300 1202 0.16 0.16 207 51 2400 2404 0.16 207 2404 0.
PIC16F193X/LF193X TABLE 24-5: BAUD RATES FOR ASYNCHRONOUS MODES (CONTINUED) SYNC = 0, BRGH = 1, BRG16 = 1 or SYNC = 1, BRG16 = 1 BAUD RATE FOSC = 32.000 MHz FOSC = 20.000 MHz FOSC = 18.432 MHz FOSC = 11.0592 MHz Actual Rate % Error SPBRG value (decimal) 300 1200 300.0 1200 0.00 0.00 26666 6666 300.0 1200 0.00 -0.01 16665 4166 300.0 1200 0.00 0.00 15359 3839 300.0 1200 0.00 0.00 9215 2303 2400 2400 0.01 3332 2400 0.02 2082 2400 0.00 1919 2400 0.
PIC16F193X/LF193X 24.3.1 AUTO-BAUD DETECT The EUSART module supports automatic detection and calibration of the baud rate. In the Auto-Baud Detect (ABD) mode, the clock to the BRG is reversed. Rather than the BRG clocking the incoming RX signal, the RX signal is timing the BRG. The Baud Rate Generator is used to time the period of a received 55h (ASCII “U”) which is the Sync character for the LIN bus. The unique feature of this character is that it has five rising edges including the Stop bit edge.
PIC16F193X/LF193X 24.3.2 AUTO-BAUD OVERFLOW 24.3.3.1 During the course of automatic baud detection, the ABDOVF bit of the BAUDCON register will be set if the baud rate counter overflows before the fifth rising edge is detected on the RX pin. The ABDOVF bit indicates that the counter has exceeded the maximum count that can fit in the 16 bits of the SPBRGH:SPBRGL register pair. After the ABDOVF has been set, the counter continues to count until the fifth rising edge is detected on the RX pin.
PIC16F193X/LF193X FIGURE 24-7: AUTO-WAKE-UP BIT (WUE) TIMING DURING NORMAL OPERATION Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 OSC1 Auto Cleared Bit set by user WUE bit RX/DT Line RCIF Note 1: Cleared due to User Read of RCREG The EUSART remains in Idle while the WUE bit is set.
PIC16F193X/LF193X 24.3.4 BREAK CHARACTER SEQUENCE The EUSART module has the capability of sending the special Break character sequences that are required by the LIN bus standard. A Break character consists of a Start bit, followed by 12 ‘0’ bits and a Stop bit. 5. After the Break has been sent, the SENDB bit is reset by hardware and the Sync character is then transmitted. When the TXREG becomes empty, as indicated by the TXIF, the next data byte can be written to TXREG.
PIC16F193X/LF193X 24.4 EUSART Synchronous Mode Synchronous serial communications are typically used in systems with a single master and one or more slaves. The master device contains the necessary circuitry for baud rate generation and supplies the clock for all devices in the system. Slave devices can take advantage of the master clock by eliminating the internal clock generation circuitry. There are two signal lines in Synchronous mode: a bidirectional data line and a clock line.
PIC16F193X/LF193X FIGURE 24-10: SYNCHRONOUS TRANSMISSION RX/DT pin bit 0 bit 1 Word 1 bit 2 bit 7 bit 0 bit 1 Word 2 bit 7 TX/CK pin (SCKP = 0) TX/CK pin (SCKP = 1) Write to TXREG Reg Write Word 1 Write Word 2 TXIF bit (Interrupt Flag) TRMT bit TXEN bit ‘1’ Note: ‘1’ Sync Master mode, SPBRGL = 0, continuous transmission of two 8-bit words.
PIC16F193X/LF193X 24.4.1.5 Synchronous Master Reception Data is received at the RX/DT pin. The RX/DT pin output driver is automatically disabled when the EUSART is configured for synchronous master receive operation. In Synchronous mode, reception is enabled by setting either the Single Receive Enable bit (SREN of the RCSTA register) or the Continuous Receive Enable bit (CREN of the RCSTA register).
PIC16F193X/LF193X FIGURE 24-12: SYNCHRONOUS RECEPTION (MASTER MODE, SREN) RX/DT pin bit 0 bit 1 bit 2 bit 3 bit 4 bit 5 bit 6 bit 7 TX/CK pin (SCKP = 0) TX/CK pin (SCKP = 1) Write to bit SREN SREN bit CREN bit ‘0’ ‘0’ RCIF bit (Interrupt) Read RXREG Note: Timing diagram demonstrates Sync Master mode with bit SREN = 1 and bit BRGH = 0.
PIC16F193X/LF193X 24.4.2 SYNCHRONOUS SLAVE MODE The following bits are used to configure the EUSART for Synchronous slave operation: • • • • • SYNC = 1 CSRC = 0 SREN = 0 (for transmit); SREN = 1 (for receive) CREN = 0 (for transmit); CREN = 1 (for receive) SPEN = 1 1. 2. 3. 4. Setting the SYNC bit of the TXSTA register configures the device for synchronous operation. Clearing the CSRC bit of the TXSTA register configures the device as a slave.
PIC16F193X/LF193X 24.4.2.3 EUSART Synchronous Slave Reception 24.4.2.4 The operation of the Synchronous Master and Slave modes is identical (Section 24.4.1.5 “Synchronous Master Reception”), with the following exceptions: • Sleep • CREN bit is always set, therefore the receiver is never Idle • SREN bit, which is a “don’t care” in Slave mode 1. 2. 3. A character may be received while in Sleep mode by setting the CREN bit prior to entering Sleep.
PIC16F193X/LF193X 24.5 EUSART Operation During Sleep The EUSART will remain active during Sleep only in the Synchronous Slave mode. All other modes require the system clock and therefore cannot generate the necessary signals to run the Transmit or Receive Shift registers during Sleep. Synchronous Slave mode uses an externally generated clock to run the Transmit and Receive Shift registers. 24.5.
PIC16F193X/LF193X 25.0 CAPACITIVE SENSING MODULE The capacitive sensing module allows for an interaction with an end user without a mechanical interface. In a typical application, the capacitive sensing module is attached to a pad on a Printed Circuit Board (PCB), which is electrically isolated from the end user. When the end user places their finger over the PCB pad, a capacitive load is added, causing a frequency shift in the capacitive sensing module.
PIC16F193X/LF193X FIGURE 25-2: CAPACITIVE SENSING OSCILLATOR BLOCK DIAGRAM Oscillator Module VDD (1) + (2) - S CPSx (1) Analog Pin - Q CPSCLK R (2) + Internal References Ref- 0 1 0 Ref+ DAC(3) 1 FVR(3) CPSRM(3) Note 1: 2: 3: Module Enable and Power mode selections are not shown. Comparators remain active in Noise Detection mode on PIC16F/LF1933/1938/1939 only. Variable Voltage Reference selection is implemented on PIC16F/LF1933/1938/1939 only.
PIC16F193X/LF193X 25.1 Analog MUX 25.3 Voltage References The capacitive sensing module can monitor up to 16 inputs. The capacitive sensing inputs are defined as CPS<15:0>. To determine if a frequency change has occurred the user must: The capacitive sensing oscillator uses voltage references to provide two voltage thresholds for oscillation. The upper voltage threshold is referred to as Ref+ and the lower voltage threshold is referred to as Ref-.
PIC16F193X/LF193X 25.4 The remaining mode is a Noise Detection mode that resides within the high range. The Noise Detection mode is unique in that it disables the sinking and sourcing of current on the analog pin but leaves the rest of the oscillator circuitry active. This reduces the oscillation frequency on the analog pin to zero and also greatly reduces the current consumed by the oscillator module. Power Modes The capacitive sensing oscillator can operate in one of seven different power modes.
PIC16F193X/LF193X 25.5 Timer Resources 25.7 To measure the change in frequency of the capacitive sensing oscillator, a fixed time base is required. For the period of the fixed time base, the capacitive sensing oscillator is used to clock either Timer0 or Timer1. The frequency of the capacitive sensing oscillator is equal to the number of counts in the timer divided by the period of the fixed time base. 25.
PIC16F193X/LF193X 25.7.3 FREQUENCY THRESHOLD The frequency threshold should be placed midway between the value of nominal frequency and the reduced frequency of the capacitive sensing oscillator. Refer to Application Note AN1103, “Software Handling for Capacitive Sensing” (DS01103) for more detailed information on the software required for capacitive sensing module.
PIC16F193X/LF193X REGISTER 25-1: CPSCON0: CAPACITIVE SENSING CONTROL REGISTER 0 R/W-0/0 R/W-0/0 U-0 U-0 CPSON CPSRM(1) — — R/W-0/0 R/W-0/0 CPSRNG<1:0> R-0/0 R/W-0/0 CPSOUT T0XCS bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 CPSON: Capacitive Sensing Module Enable bit 1 = Capacitive sensing module is en
PIC16F193X/LF193X REGISTER 25-2: CPSCON1: CAPACITIVE SENSING CONTROL REGISTER 1 U-0 U-0 U-0 — — — R/W-0/0(1, 2) R/W-0/0(1) R/W-0/0 R/W-0/0 R/W-0/0 CPSCH<4:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-4 Unimplemented: Read as ‘0’ bit 3-0 CPSCH<3:0>: Capacitive Sensing Channel Select bits If CPSON =
PIC16F193X/LF193X TABLE 25-3: Name ANSELA SUMMARY OF REGISTERS ASSOCIATED WITH CAPACITIVE SENSING Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register on Page — — ANSA5 ANSA4 ANSA3 ANSA2 ANSA1 ANSA0 133 ANSELB — — ANSB5 ANSB4 ANSB3 ANSB2 ANSB1 ANSB0 137 ANSELD ANSD7 ANSD6 ANSD5 ANSD4 ANSD3 ANSD2 ANSD1 ANSD0 144 CPSCON0 CPSON CPSRM(1) — — CPSOUT T0XCS CPSCON1 — — — WPUEN INTEDG TMR0CS OPTION_REG T1CON TMR1CS<1:0> CPSRNG<1:0> CPSCH<4:0> TMR0SE T1CKP
PIC16F193X/LF193X NOTES: DS41364D-page 326 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 26.0 LIQUID CRYSTAL DISPLAY (LCD) DRIVER MODULE The Liquid Crystal Display (LCD) driver module generates the timing control to drive a static or multiplexed LCD panel. In the PIC16F193X/LF193X device, the module drives the panels of up to four commons and up to 24 segments. The LCD module also provides control of the LCD pixel data.
PIC16F193X/LF193X 26.
PIC16F193X/LF193X REGISTER 26-1: LCDCON: LIQUID CRYSTAL DISPLAY (LCD) CONTROL REGISTER R/W-0/0 R/W-0/0 R/C-0/0 U-0 LCDEN SLPEN WERR — R/W-0/0 R/W-0/0 R/W-1/1 CS<1:0> R/W-1/1 LMUX<1:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared C = Only clearable bit bit 7 LCDEN: LCD Driver Enable bit 1 = LCD driver module
PIC16F193X/LF193X REGISTER 26-2: LCDPS: LCD PHASE REGISTER R/W-0/0 R/W-0/0 R-0/0 R-0/0 WFT BIASMD LCDA WA R/W-0/0 R/W-0/0 R/W-1/1 R/W-1/1 LP<3:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared C = Only clearable bit bit 7 WFT: Waveform Type bit 1 = Type-B phase changes on each frame boundary 0 = Type-A phase c
PIC16F193X/LF193X REGISTER 26-3: LCDREF: LCD REFERENCE VOLTAGE CONTROL REGISTER R/W-0/0 R/W-0/0 R/W-0/0 U-0 R/W-0/0 R/W-0/0 R/W-0/0 U-0 LCDIRE LCDIRS LCDIRI — VLCD3PE VLCD2PE VLCD1PE — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared C = Only clearable bit bit 7 LCDIRE: LCD Internal Reference Enable bit 1 = I
PIC16F193X/LF193X REGISTER 26-4: LCDCST: LCD CONTRAST CONTROL REGISTER U-0 U-0 U-0 U-0 U-0 — — — — — R/W-0/0 R/W-0/0 R/W-0/0 LCDCST<2:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared C = Only clearable bit bit 7-3 Unimplemented: Read as ‘0’ bit 2-0 LCDCST<2:0>: LCD Contrast Control bits Selects the resista
PIC16F193X/LF193X REGISTER 26-5: LCDSEn: LCD SEGMENT ENABLE REGISTERS R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 SEn SEn SEn SEn SEn SEn SEn SEn bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-0 SEn: Segment Enable bits 1 = Segment function of the pin is enabled 0 = I/O function of
PIC16F193X/LF193X 26.2 Using bits CS<1:0> of the LCDCON register can select any of these clock sources. LCD Clock Source Selection The LCD module has 3 possible clock sources: 26.2.1 • FOSC/256 • T1OSC • LFINTOSC The first clock source is the system clock divided by 256 (FOSC/256). This divider ratio is chosen to provide about 1 kHz output when the system clock is 8 MHz. The divider is not programmable.
PIC16F193X/LF193X 26.
PIC16F193X/LF193X 26.4 26.4.2 LCD Bias Internal Reference Ladder The internal reference ladder can be used to divide the LCD bias voltage two or three equally spaced voltages that will be supplied to the LCD segment pins. To create this, the reference ladder consists of three matched resistors. Refer to Figure 26-3. POWER MODES The internal reference ladder may be operated in one of three power modes. This allows the user to trade off LCD contrast for power in the specific application.
PIC16F193X/LF193X 26.4.3 AUTOMATIC POWER MODE SWITCHING The LCDRL register allows switching between two power modes, designated ‘A’ and ‘B’. ‘A’ Power mode is active for a programmable time, beginning at the time when the LCD segments transition. ‘B’ Power mode is the remaining time before the segments or commons change again. The LRLAT<2:0> bits select how long, if any, that the ‘A’ Power mode is active. Refer to Figure 26-4.
LCD INTERNAL REFERENCE LADDER POWER MODE SWITCHING DIAGRAM – TYPE A WAVEFORM (1/2 MUX, 1/2 BIAS DRIVE) Single Segment Time Single Segment Time 32kHz Clock Ladder Power Control ‘H00 ‘H01 ‘H02 ‘H03 ‘H04 ‘H05 ‘H06 ‘H07 ‘H0E ‘H0F ‘H00 ‘H01 ‘H02 ‘H03 ‘H04 ‘H05 ‘H06 ‘H07 ‘H0E ‘H0F Segment Clock Segment Data Power Mode Power Mode A LRLAT<2:0> = 011 Power Mode B Power Mode A Power Mode B LRLAT<2:0> = 011 Confidential V2 V1 COM0-SEG0 V0 -V1 -V2 PIC16F193X/LF193X DS41364D-page 338 FIGURE 26-5: 2
2009 Microchip Technology Inc.
PIC16F193X/LF193X REGISTER 26-7: R/W-0/0 LCDRL: LCD REFERENCE LADDER CONTROL REGISTERS R/W-0/0 LRLAP<1:0> R/W-0/0 R/W-0/0 LRLBP<1:0> U-0 R/W-0/0 — R/W-0/0 R/W-0/0 LRLAT<2:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-6 LRLAP<1:0>: LCD Reference Ladder A Time Power Control bits During Time interval A (Re
PIC16F193X/LF193X 26.4.4 CONTRAST CONTROL The LCD contrast control circuit consists of a seven-tap resistor ladder, controlled by the LCDCST bits. Refer to Figure 26-7. FIGURE 26-7: The contrast control circuit is used to decrease the output voltage of the signal source by a total of approximately 10%, when LCDCST = 111. Whenever the LCD module is inactive (LCDA = 0), the contrast control ladder will be turned off (open).
PIC16F193X/LF193X 26.5 TABLE 26-5: LCD Multiplex Types The LCD driver module can be configured into one of four multiplex types: • • • • Static (only COM0 is used) 1/2 multiplex (COM<1:0> are used) 1/3 multiplex (COM<2:0> are used) 1/4 multiplex (COM<3:0> are used) If the pin is a digital I/O, the corresponding TRIS bit controls the data direction. If the pin is a COM drive, then the TRIS setting of that pin is overridden.
PIC16F193X/LF193X TABLE 26-7: LCD Function LCD SEGMENT MAPPING WORKSHEET COM0 LCDDATAx Address COM1 LCD Segment LCDDATAx Address COM2 LCD Segment LCDDATAx Address COM3 LCD Segment LCDDATAx Address SEG0 LCDDATA0, 0 LCDDATA3, 0 LCDDATA6, 0 LCDDATA9, 0 SEG1 LCDDATA0, 1 LCDDATA3, 1 LCDDATA6, 1 LCDDATA9, 1 SEG2 LCDDATA0, 2 LCDDATA3, 2 LCDDATA6, 2 LCDDATA9, 2 SEG3 LCDDATA0, 3 LCDDATA3, 3 LCDDATA6, 3 LCDDATA9, 3 SEG4 LCDDATA0, 4 LCDDATA3, 4 LCDDATA6, 4 LCDDATA9, 4 SEG5 LCDDATA0, 5
PIC16F193X/LF193X 26.9 LCD Waveform Generation LCD waveforms are generated so that the net AC voltage across the dark pixel should be maximized and the net AC voltage across the clear pixel should be minimized. The net DC voltage across any pixel should be zero. The COM signal represents the time slice for each common, while the SEG contains the pixel data. The pixel signal (COM-SEG) will have no DC component and it can take only one of the two RMS values.
PIC16F193X/LF193X FIGURE 26-9: TYPE-A WAVEFORMS IN 1/2 MUX, 1/2 BIAS DRIVE V2 COM0 pin COM1 V1 V0 V2 COM1 pin COM0 V1 V0 V2 V1 SEG0 pin V0 V2 V1 SEG1 pin SEG1 V2 SEG0 SEG2 SEG3 V0 V1 V0 COM0-SEG0 segment voltage (active) -V1 -V2 V2 V1 V0 COM0-SEG1 segment voltage (inactive) -V1 1 Frame -V2 1 Segment Time Note: 1 Frame = 2 single segment times. 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 26-10: TYPE-B WAVEFORMS IN 1/2 MUX, 1/2 BIAS DRIVE V2 COM1 V1 COM0 pin V0 COM0 V2 COM1 pin V1 V0 V2 SEG0 pin V1 SEG1 SEG0 SEG3 SEG2 V0 V2 SEG1 pin V1 V0 V2 V1 V0 COM0-SEG0 segment voltage (active) -V1 -V2 V2 V1 V0 COM0-SEG1 segment voltage (inactive) -V1 2 Frames -V2 1 Segment Time Note: 1 Frame = 2 single segment times. DS41364D-page 346 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 26-11: TYPE-A WAVEFORMS IN 1/2 MUX, 1/3 BIAS DRIVE V3 COM1 V2 COM0 pin V1 V0 V3 COM0 V2 COM1 pin V1 V0 V3 V2 SEG0 pin V1 V0 SEG1 SEG0 SEG2 SEG3 V3 V2 SEG1 pin V1 V0 V3 V2 V1 V0 COM0-SEG0 segment voltage (active) -V1 -V2 -V3 V3 V2 V1 V0 COM0-SEG1 segment voltage (inactive) -V1 1 Frame -V2 -V3 1 Segment Time Note: 1 Frame = 2 single segment times. 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 26-12: TYPE-B WAVEFORMS IN 1/2 MUX, 1/3 BIAS DRIVE V3 COM1 V2 COM0 pin V1 V0 V3 COM0 V2 COM1 pin V1 V0 V3 V2 SEG0 pin V1 V0 SEG1 SEG0 SEG2 SEG3 V3 V2 SEG1 pin V1 V0 V3 V2 V1 V0 COM0-SEG0 segment voltage (active) -V1 -V2 -V3 V3 V2 V1 V0 COM0-SEG1 segment voltage (inactive) -V1 2 Frames -V2 -V3 1 Segment Time Note: 1 Frame = 2 single segment times. DS41364D-page 348 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 26-13: TYPE-A WAVEFORMS IN 1/3 MUX, 1/2 BIAS DRIVE V2 COM0 pin V1 V0 V2 COM2 COM1 pin V1 V0 COM1 V2 COM0 COM2 pin V1 V0 V2 SEG0 and SEG2 pins V1 V0 V2 V1 V0 SEG0 SEG1 SEG2 SEG1 pin V2 V1 V0 COM0-SEG0 segment voltage (inactive) -V1 -V2 V2 V1 V0 COM0-SEG1 segment voltage (active) -V1 -V2 1 Frame 1 Segment Time Note: 2009 Microchip Technology Inc. 1 Frame = 2 single segment times.
PIC16F193X/LF193X FIGURE 26-14: TYPE-B WAVEFORMS IN 1/3 MUX, 1/2 BIAS DRIVE V2 COM0 pin V1 V0 COM2 V2 COM1 pin V1 COM1 V0 COM0 V2 COM2 pin V1 V0 V2 V1 V0 SEG0 SEG1 SEG2 SEG0 pin V2 SEG1 pin V1 V0 V2 V1 V0 COM0-SEG0 segment voltage (inactive) -V1 -V2 V2 V1 V0 COM0-SEG1 segment voltage (active) -V1 -V2 2 Frames 1 Segment Time Note: DS41364D-page 350 1 Frame = 2 single segment times. Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 26-15: TYPE-A WAVEFORMS IN 1/3 MUX, 1/3 BIAS DRIVE V3 V2 COM0 pin V1 V0 V3 COM2 V2 COM1 pin V1 COM1 V0 COM0 V3 V2 COM2 pin V1 V0 V3 V2 V1 V0 SEG0 SEG1 SEG2 SEG0 and SEG2 pins V3 V2 SEG1 pin V1 V0 V3 V2 V1 V0 COM0-SEG0 segment voltage (inactive) -V1 -V2 -V3 V3 V2 V1 V0 COM0-SEG1 segment voltage (active) -V1 -V2 -V3 1 Frame 1 Segment Time Note: 2009 Microchip Technology Inc. 1 Frame = 2 single segment times.
PIC16F193X/LF193X FIGURE 26-16: TYPE-B WAVEFORMS IN 1/3 MUX, 1/3 BIAS DRIVE V3 V2 COM0 pin V1 V0 V3 COM2 V2 COM1 pin V1 COM1 V0 COM0 V3 V2 COM2 pin V1 V0 V3 V2 V1 V0 SEG0 SEG1 SEG2 SEG0 pin V3 V2 SEG1 pin V1 V0 V3 V2 V1 V0 COM0-SEG0 segment voltage (inactive) -V1 -V2 -V3 V3 V2 V1 V0 COM0-SEG1 segment voltage (active) -V1 -V2 -V3 2 Frames 1 Segment Time Note: DS41364D-page 352 1 Frame = 2 single segment times. Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 26-17: TYPE-A WAVEFORMS IN 1/4 MUX, 1/3 BIAS DRIVE COM3 COM2 COM1 COM0 pin V3 V2 V1 V0 COM1 pin V3 V2 V1 V0 COM2 pin V3 V2 V1 V0 COM3 pin V3 V2 V1 V0 SEG0 pin V3 V2 V1 V0 SEG1 pin V3 V2 V1 V0 SEG0 SEG1 COM0 V3 V2 V1 V0 -V1 -V2 -V3 COM0-SEG0 segment voltage (active) COM0-SEG1 segment voltage (inactive) 1 Frame V3 V2 V1 V0 -V1 -V2 -V3 1 Segment Time Note: 1 Frame = 2 single segment times. 2009 Microchip Technology Inc.
PIC16F193X/LF193X FIGURE 26-18: TYPE-B WAVEFORMS IN 1/4 MUX, 1/3 BIAS DRIVE COM3 COM0 pin V3 V2 V1 V0 COM1 pin V3 V2 V1 V0 COM2 pin V3 V2 V1 V0 COM3 pin V3 V2 V1 V0 SEG0 pin V3 V2 V1 V0 SEG1 pin V3 V2 V1 V0 COM2 COM1 SEG0 SEG1 COM0 V3 V2 V1 V0 -V1 -V2 -V3 COM0-SEG0 segment voltage (active) COM0-SEG1 segment voltage (inactive) 2 Frames V3 V2 V1 V0 -V1 -V2 -V3 1 Segment Time Note: DS41364D-page 354 1 Frame = 2 single segment times. Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 26.10 LCD Interrupts The LCD module provides an interrupt in two cases. An interrupt when the LCD controller goes from active to inactive controller. An interrupt also provides unframe boundaries for Type B waveform. The LCD timing generation provides an interrupt that defines the LCD frame timing. 26.10.1 LCD INTERRUPT ON MODULE SHUTDOWN An LCD interrupt is generated when the module completes shutting down (LCDA goes from ‘1’ to ‘0’). 26.10.
PIC16F193X/LF193X FIGURE 26-19: WAVEFORMS AND INTERRUPT TIMING IN QUARTER-DUTY CYCLE DRIVE (EXAMPLE – TYPE-B, NON-STATIC) LCD Interrupt Occurs Controller Accesses Next Frame Data COM0 V3 V2 V1 V0 COM1 V3 V2 V1 V0 COM2 V3 V2 V1 V0 V3 V2 V1 V0 COM3 2 Frames TFINT Frame Boundary Frame Boundary TFWR Frame Boundary TFWR = TFRAME/2*(LMUX<1:0> + 1) + TCY/2 TFINT = (TFWR/2 – (2 TCY + 40 ns)) minimum = 1.5(TFRAME/4) – (2 TCY + 40 ns) (TFWR/2 – (1 TCY + 40 ns)) maximum = 1.
PIC16F193X/LF193X 26.11 Operation During Sleep The LCD module can operate during Sleep. The selection is controlled by bit SLPEN of the LCDCON register. Setting the SLPEN bit allows the LCD module to go to Sleep. Clearing the SLPEN bit allows the module to continue to operate during Sleep. If a SLEEP instruction is executed and SLPEN = 1, the LCD module will cease all functions and go into a very low-current Consumption mode.
PIC16F193X/LF193X FIGURE 26-20: SLEEP ENTRY/EXIT WHEN SLPEN = 1 V3 V2 V1 COM0 V0 V3 V2 V1 V0 COM1 V3 V2 V1 V0 COM2 V3 V2 V1 V0 SEG0 2 Frames SLEEP Instruction Execution DS41364D-page 358 Preliminary Wake-up 2009 Microchip Technology Inc.
PIC16F193X/LF193X 26.12 Configuring the LCD Module 26.14 LCD Current Consumption The following is the sequence of steps to configure the LCD module. When using the LCD module the current consumption consists of the following three factors: 1. • Oscillator Selection • LCD Bias Source • Capacitance of the LCD segments 2. 3. 4. 5. 6. 7. Select the frame clock prescale using bits LP<3:0> of the LCDPS register. Configure the appropriate pins to function as segment drivers using the LCDSEn registers.
PIC16F193X/LF193X TABLE 26-9: Name SUMMARY OF REGISTERS ASSOCIATED WITH LCD OPERATION Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 IOCIE TMR0IF INTF IOCIF INTCON GIE PEIE TMR0IE INTE LCDCON LCDEN SLPEN WERR — LCDCST CS<1:0> LMUX<1:0> 99 329 — — — — — LCDDATA0 SEG7 COM0 SEG6 COM0 SEG5 COM0 SEG4 COM0 SEG3 COM0 SEG2 COM0 SEG1 COM0 SEG0 COM0 333 LCDDATA1 SEG15 COM0 SEG14 COM0 SEG13 COM0 SEG12 COM0 SEG11 COM0 SEG10 COM0 SEG9 COM0 SEG8 COM0 333 LCDDATA2 SEG2
PIC16F193X/LF193X 27.0 IN-CIRCUIT SERIAL PROGRAMMING™ (ICSP™) ICSP™ programming allows customers to manufacture circuit boards with unprogrammed devices. Programming can be done after the assembly process allowing the device to be programmed with the most recent firmware or a custom firmware. Five pins are needed for ICSP™ programming: • ICSPCLK • ICSPDAT • MCLR/VPP • VDD • VSS In Program/Verify mode the Program Memory, User IDs and the Configuration Words are programmed through serial communications.
PIC16F193X/LF193X 27.2 FIGURE 27-2: Low-Voltage Programming Entry Mode The Low-Voltage Programming Entry mode allows the PIC16F193X/LF193X devices to be programmed using VDD only, without high voltage. When the LVP bit of Configuration Word 2 is set to ‘1’, the low-voltage ICSP programming entry is enabled. To disable the Low-Voltage ICSP mode, the LVP bit must be programmed to ‘0’. VDD Entry into the Low-Voltage Programming Entry mode requires the following steps: 1. 2.
PIC16F193X/LF193X For additional interface recommendations, refer to your specific device programmer manual prior to PCB design. It is recommended that isolation devices be used to separate the programming pins from other circuitry. The type of isolation is highly dependent on the specific application and may include devices such as resistors, diodes, or even jumpers. See Figure 27-4 for more information.
PIC16F193X/LF193X NOTES: DS41364D-page 364 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 28.0 INSTRUCTION SET SUMMARY 28.1 Read-Modify-Write Operations • Byte Oriented • Bit Oriented • Literal and Control Any instruction that specifies a file register as part of the instruction performs a Read-Modify-Write (R-M-W) operation. The register is read, the data is modified, and the result is stored according to either the instruction, or the destination designator ‘d’. A read operation is performed on a register even if the instruction writes to that register.
PIC16F193X/LF193X FIGURE 28-1: GENERAL FORMAT FOR INSTRUCTIONS Byte-oriented file register operations 13 8 7 6 OPCODE d f (FILE #) 0 d = 0 for destination W d = 1 for destination f f = 7-bit file register address Bit-oriented file register operations 13 10 9 7 6 OPCODE b (BIT #) f (FILE #) 0 b = 3-bit bit address f = 7-bit file register address Literal and control operations General 13 OPCODE 8 7 0 k (literal) k = 8-bit immediate value CALL and GOTO instructions only 13 11 10 OPCODE 0 k (literal
PIC16F193X/LF193X TABLE 28-3: PIC16F193X/LF193X ENHANCED INSTRUCTION SET 14-Bit Opcode Mnemonic, Operands Description Cycles MSb LSb Status Affected Notes BYTE-ORIENTED FILE REGISTER OPERATIONS ADDWF ADDWFC ANDWF ASRF LSLF LSRF CLRF CLRW COMF DECF INCF IORWF MOVF MOVWF RLF RRF SUBWF SUBWFB SWAPF XORWF f, d f, d f, d f, d f, d f, d f – f, d f, d f, d f, d f, d f f, d f, d f, d f, d f, d f, d Add W and f Add with Carry W and f AND W with f Arithmetic Right Shift Logical Left Shift Logical Right Shif
PIC16F193X/LF193X TABLE 28-3: PIC16F193X/LF193X ENHANCED INSTRUCTION SET (CONTINUED) Mnemonic, Operands 14-Bit Opcode Description Cycles MSb LSb Status Affected Notes CONTROL OPERATIONS BRA BRW CALL CALLW GOTO RETFIE RETLW RETURN k – k – k k k – Relative Branch Relative Branch with W Call Subroutine Call Subroutine with W Go to address Return from interrupt Return with literal in W Return from Subroutine CLRWDT NOP OPTION RESET SLEEP TRIS – – – – – f Clear Watchdog Timer No Operation Load OPTIO
PIC16F193X/LF193X 28.2 Instruction Descriptions ADDFSR Add Literal to FSRn ANDLW AND literal with W Syntax: [ label ] ADDFSR FSRn, k Syntax: [ label ] ANDLW Operands: -32 k 31 n [ 0, 1] Operands: 0 k 255 Operation: (W) .AND. (k) (W) Operation: FSR(n) + k FSR(n) Status Affected: Z Status Affected: None Description: Description: The signed 6-bit literal ‘k’ is added to the contents of the FSRnH:FSRnL register pair.
PIC16F193X/LF193X BCF Bit Clear f Syntax: [ label ] BCF BTFSC f,b Bit Test f, Skip if Clear Syntax: [ label ] BTFSC f,b 0 f 127 0b7 Operands: 0 f 127 0b7 Operands: Operation: 0 (f) Operation: skip if (f) = 0 Status Affected: None Status Affected: None Description: Bit ‘b’ in register ‘f’ is cleared. Description: If bit ‘b’ in register ‘f’ is ‘1’, the next instruction is executed.
PIC16F193X/LF193X CALL Call Subroutine CLRWDT Clear Watchdog Timer Syntax: [ label ] CALL k Syntax: [ label ] CLRWDT Operands: 0 k 2047 Operands: None Operation: (PC)+ 1 TOS, k PC<10:0>, (PCLATH<4:3>) PC<12:11> Operation: Status Affected: None 00h WDT 0 WDT prescaler, 1 TO 1 PD Description: Call Subroutine. First, return address (PC + 1) is pushed onto the stack. The eleven-bit immediate address is loaded into PC bits <10:0>.
PIC16F193X/LF193X DECFSZ Decrement f, Skip if 0 INCFSZ Increment f, Skip if 0 Syntax: [ label ] DECFSZ f,d Syntax: [ label ] Operands: 0 f 127 d [0,1] Operands: 0 f 127 d [0,1] Operation: (f) - 1 (destination); skip if result = 0 Operation: (f) + 1 (destination), skip if result = 0 Status Affected: None Status Affected: None Description: The contents of register ‘f’ are decremented. If ‘d’ is ‘0’, the result is placed in the W register.
PIC16F193X/LF193X LSLF Logical Left Shift MOVF Syntax: [ label ] LSLF Syntax: [ label ] Operands: 0 f 127 d [0,1] Operands: 0 f 127 d [0,1] Operation: (f<7>) C (f<6:0>) dest<7:1> 0 dest<0> Operation: (f) (dest) f {,d} Status Affected: C, Z Description: The contents of register ‘f’ are shifted one bit to the left through the Carry flag. A ‘0’ is shifted into the LSb. If ‘d’ is ‘0’, the result is placed in W. If ‘d’ is ‘1’, the result is stored back in register ‘f’.
PIC16F193X/LF193X MOVIW Move INDFn to W MOVLP Syntax: [ label ] MOVIW ++INDFn [ label ] MOVIW --INDFn [ label ] MOVIW INDFn++ [ label ] MOVIW INDFn-[ label ] MOVIW k[INDFn] [ label ] MOVIW INDFn Syntax: [ label ] MOVLP k Operands: 0 k 127 Operands: n [0,1] mm [00, 01, 10, 11]. -32 k 31 If not present, k = 0.
PIC16F193X/LF193X MOVWI Move W to INDFn NOP No Operation Syntax: [ label ] MOVWI ++INDFn [ label ] MOVWI --INDFn [ label ] MOVWI INDFn++ [ label ] MOVWI INDFn-[ label ] MOVWI k[INDFn] [ label ] MOVWI INDFn Syntax: [ label ] Operands: None Description: No operation. n [0,1] mm [00, 01, 10, 11]. -32 k 31 If not present, k = 0.
PIC16F193X/LF193X RETFIE Return from Interrupt RETURN Return from Subroutine Syntax: [ label ] Syntax: [ label ] None RETFIE RETURN Operands: None Operands: Operation: TOS PC, 1 GIE Operation: TOS PC Status Affected: None Status Affected: None Description: Description: Return from Interrupt. Stack is POPed and Top-of-Stack (TOS) is loaded in the PC. Interrupts are enabled by setting Global Interrupt Enable bit, GIE (INTCON<7>). This is a two-cycle instruction.
PIC16F193X/LF193X SUBLW Subtract W from literal Syntax: [ label ] RRF Rotate Right f through Carry Syntax: [ label ] Operands: 0 f 127 d [0,1] Operation: See description below Status Affected: C, DC, Z Status Affected: C Description: Description: The contents of register ‘f’ are rotated one bit to the right through the Carry flag. If ‘d’ is ‘0’, the result is placed in the W register. If ‘d’ is ‘1’, the result is placed back in register ‘f’.
PIC16F193X/LF193X SWAPF Swap Nibbles in f XORLW Exclusive OR literal with W Syntax: [ label ] Syntax: [ label ] Operands: 0 f 127 d [0,1] Operands: 0 k 255 (f<3:0>) (destination<7:4>), (f<7:4>) (destination<3:0>) Operation: (W) .XOR. k W) Status Affected: Z Description: The contents of the W register are XOR’ed with the eight-bit literal ‘k’. The result is placed in the W register.
PIC16F193X/LF193X 29.0 ELECTRICAL SPECIFICATIONS (PIC16F/LF1933) Absolute Maximum Ratings(†) Ambient temperature under bias....................................................................................................... -40°C to +125°C Storage temperature ........................................................................................................................ -65°C to +150°C Voltage on VDD with respect to VSS, PIC16F1933 ...............................................................
PIC16F193X/LF193X PIC16F/LF1933 VOLTAGE FREQUENCY GRAPH, -40°C TA +125°C FIGURE 29-1: VDD (V) 5.5 3.6 2.5 2.3 2.0 1.8 0 4 10 16 32 Frequency (MHz) Note 1: The shaded region indicates the permissible combinations of voltage and frequency. 2: Refer to Table 29-1 for each Oscillator mode’s supported frequencies. PIC16F/LF1933 VOLTAGE FREQUENCY GRAPH, -40°C TA +125°C VDD (V) FIGURE 29-2: 3.6 2.5 2.3 2.0 1.
PIC16F193X/LF193X FIGURE 29-3: HFINTOSC FREQUENCY ACCURACY OVER DEVICE VDD AND TEMPERATURE 125 ± 5% 85 Temperature (°C) ± 2.5% 60 ± 2% 25 0 -20 -40 1.8 ± 5% 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VDD (V) 2009 Microchip Technology Inc.
PIC16F193X/LF193X 29.1 DC Characteristics: PIC16F/LF1933-I/E (Industrial, Extended) PIC16LF1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param. No. D001 Sym. VDD D001 D002* VDR D002* Characteristic Min. Typ† Max.
PIC16F193X/LF193X FIGURE 29-4: POR AND POR REARM WITH SLOW RISING VDD VDD VPOR VPORR VSS NPOR POR REARM VSS TVLOW(2) Note 1: 2: 3: TPOR(3) When NPOR is low, the device is held in Reset. TPOR 1 s typical. TVLOW 2.7 s typical. 2009 Microchip Technology Inc.
PIC16F193X/LF193X 29.2 DC Characteristics: PIC16F/LF1933-I/E (Industrial, Extended) PIC16LF1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 29.2 DC Characteristics: PIC16F/LF1933-I/E (Industrial, Extended) (Continued) PIC16LF1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 29.2 DC Characteristics: PIC16F/LF1933-I/E (Industrial, Extended) (Continued) PIC16LF1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 29.3 DC Characteristics: PIC16F/LF1933-I/E (Power-Down) PIC16LF1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Power-down Base Current Min. Typ† Conditions Max. +85°C Max.
PIC16F193X/LF193X 29.3 DC Characteristics: PIC16F/LF1933-I/E (Power-Down) (Continued) PIC16LF1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1933 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Min. Power-down Base Current (IPD) D028 D028 Typ† Conditions Max.
PIC16F193X/LF193X 29.4 DC Characteristics: PIC16F/LF1933-I/E DC CHARACTERISTICS Param No. Sym. VIL Characteristic Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Min. Typ† Max. Units — — with Schmitt Trigger buffer with I2C™ levels Conditions — 0.8 V 4.5V VDD 5.5V — 0.15 VDD V 1.8V VDD 4.5V — — 0.2 VDD V 2.0V VDD 5.5V — — 0.
PIC16F193X/LF193X 29.4 DC Characteristics: PIC16F/LF1933-I/E (Continued) DC CHARACTERISTICS Param No. Sym. Characteristic Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Min. Typ† Max.
PIC16F193X/LF193X 29.5 Memory Programming Requirements Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C DC CHARACTERISTICS Param No. Sym. Characteristic Min. Typ† Max. Units Conditions Program Memory Programming Specifications D110 VIHH Voltage on MCLR/VPP/RE3 pin 8.0 — 9.0 V D111 IDDP Supply Current during Programming — — 10 mA VDD for Bulk Erase 2.7 — VDD max. V D112 D113 VPEW VDD for Write or Row Erase VDD min. — VDD max.
PIC16F193X/LF193X 29.6 Thermal Considerations Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param No. TH01 TH02 TH03 TH04 TH05 Sym. Characteristic JA Thermal Resistance Junction to Ambient JC TJMAX PD Thermal Resistance Junction to Case Maximum Junction Temperature Power Dissipation PINTERNAL Internal Power Dissipation Typ. Units Conditions 60 C/W 28-pin SPDIP package 80 C/W 28-pin SOIC package 90 C/W 28-pin SSOP package 27.
PIC16F193X/LF193X 29.7 Timing Parameter Symbology The timing parameter symbols have been created with one of the following formats: 1. TppS2ppS 2.
PIC16F193X/LF193X 29.8 AC Characteristics: PIC16F/LF1933-I/E FIGURE 29-6: CLOCK TIMING Q4 Q1 Q2 Q3 Q4 Q1 OSC1/CLKIN OS02 OS04 OS04 OS03 OSC2/CLKOUT (LP,XT,HS Modes) OSC2/CLKOUT (CLKOUT Mode) TABLE 29-1: CLOCK OSCILLATOR TIMING REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param No. OS01 Sym.
PIC16F193X/LF193X TABLE 29-2: OSCILLATOR PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. OS08 Sym. Characteristic HFOSC Internal Calibrated HFINTOSC Frequency(2) OS08A MFOSC Internal Calibrated MFINTOSC Frequency(2) OS10* Freq. Tolerance Min. Typ† Max. Units Conditions 2% 2.5% — — 16.0 16.0 — — MHz MHz 0°C TA +60°C, VDD 2.5V 60°C TA 85°C, VDD 2.5V 5% — 16.0 — MHz -40°C TA +125°C 2% 2.
PIC16F193X/LF193X FIGURE 29-7: Cycle CLKOUT AND I/O TIMING Write Fetch Read Execute Q4 Q1 Q2 Q3 FOSC OS12 OS11 OS20 OS21 CLKOUT OS19 OS16 OS13 OS18 OS17 I/O pin (Input) OS14 OS15 I/O pin (Output) New Value Old Value OS18, OS19 DS41364D-page 396 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X TABLE 29-4: CLKOUT AND I/O TIMING PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. Sym. Characteristic Min. Typ† Max. Units Conditions — — 70 ns VDD = 3.3-5.0V — — 72 ns VDD = 3.3-5.
PIC16F193X/LF193X FIGURE 29-9: BROWN-OUT RESET TIMING AND CHARACTERISTICS VDD VBOR and VHYST VBOR (Device in Brown-out Reset) (Device not in Brown-out Reset) 37 Reset 33(1) (due to BOR) Note 1: 64 ms delay only if PWRTE bit in the Configuration Word register is programmed to ‘0’. 2 ms delay if PWRTE = 0 and VREGEN = 1. DS41364D-page 398 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X TABLE 29-5: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER AND BROWN-OUT RESET PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. Sym. Characteristic Min. Typ† Max. Units Conditions 2 5 — — — — s s VDD = 3.3-5V, -40°C to +85°C VDD = 3.3-5V 10 18 27 ms VDD = 3.
PIC16F193X/LF193X TABLE 29-6: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. 40* Sym. Characteristic TT0H T0CKI High Pulse Width Min. No Prescaler TT0L T0CKI Low Pulse Width No Prescaler TT0P T0CKI Period 45* TT1H T1CKI High Synchronous, No Prescaler Time Synchronous, with Prescaler — — ns — — ns 0.5 TCY + 20 — — ns 10 — — ns Greater of: 20 or TCY + 40 N — — ns 0.
PIC16F193X/LF193X TABLE 29-8: PIC16F/LF1933 A/D CONVERTER (ADC) CHARACTERISTICS: Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param Sym. No. Characteristic Min. Typ† Max. Units Conditions AD01 NR Resolution — — 10 AD02 EIL Integral Error — — ±1.7 AD03 EDL Differential Error — — ±1 AD04 EOFF Offset Error — — ±2.5 LSb VREF = 3.0V AD05 EGN LSb VREF = 3.
PIC16F193X/LF193X FIGURE 29-12: PIC16F/LF1933 A/D CONVERSION TIMING (NORMAL MODE) BSF ADCON0, GO AD134 1 TCY (TOSC/2(1)) AD131 Q4 AD130 A/D CLK 7 A/D Data 6 5 4 3 2 1 0 NEW_DATA OLD_DATA ADRES 1 TCY ADIF GO DONE Sampling Stopped AD132 Sample Note 1: If the A/D clock source is selected as RC, a time of TCY is added before the A/D clock starts. This allows the SLEEP instruction to be executed.
PIC16F193X/LF193X TABLE 29-10: COMPARATOR SPECIFICATIONS Operating Conditions: 1.8V < VDD < 5.5V, -40°C < TA < +125°C (unless otherwise stated). Param No. Sym. Characteristics Min. Typ. Max. Units CM01 VIOFF Input Offset Voltage — ±7.
PIC16F193X/LF193X TABLE 29-12: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param. No. Symbol Characteristic Min. Max. Units — 80 ns US120 TCKH2DTV SYNC XMIT (Master and Slave) Clock high to data-out valid 3.0-5.5V 1.8-5.5V — 100 ns US121 TCKRF Clock out rise time and fall time (Master mode) 3.0-5.5V — 45 ns 1.8-5.5V — 50 ns US122 TDTRF Data-out rise time and fall time 3.0-5.
PIC16F193X/LF193X FIGURE 29-16: SPI MASTER MODE TIMING (CKE = 0, SMP = 0) SS SP70 SCK (CKP = 0) SP71 SP72 SP78 SP79 SP79 SP78 SCK (CKP = 1) SP80 bit 6 - - - - - -1 MSb SDO LSb SP75, SP76 SDI MSb In bit 6 - - - -1 LSb In SP74 SP73 Note: Refer to Figure 29-5 for load conditions.
PIC16F193X/LF193X FIGURE 29-18: SPI SLAVE MODE TIMING (CKE = 0) SS SP70 SCK (CKP = 0) SP83 SP71 SP72 SP78 SP79 SP79 SP78 SCK (CKP = 1) SP80 MSb SDO LSb bit 6 - - - - - -1 SP77 SP75, SP76 SDI MSb In bit 6 - - - -1 LSb In SP74 SP73 Note: Refer to Figure 29-5 for load conditions.
PIC16F193X/LF193X TABLE 29-14: SPI MODE REQUIREMENTS Param No. Symbol Characteristic SP70* TSSL2SCH, SS to SCK or SCK input TSSL2SCL Min. Typ† Max.
PIC16F193X/LF193X TABLE 29-15: I2C™ BUS START/STOP BITS REQUIREMENTS Param No. Symbol Characteristic SP90* TSU:STA SP91* THD:STA SP92* TSU:STO SP93 THD:STO Stop condition Start condition Typ 4700 — Max. Units — Setup time 400 kHz mode 600 — — Start condition 100 kHz mode 4000 — — Hold time 400 kHz mode 600 — — Stop condition 100 kHz mode 4700 — — Setup time Hold time * 100 kHz mode Min.
PIC16F193X/LF193X TABLE 29-16: I2C™ BUS DATA REQUIREMENTS Param. No. Symbol SP100* THIGH Characteristic Clock high time Min. Max. Units 100 kHz mode 4.0 — s Device must operate at a minimum of 1.5 MHz 400 kHz mode 0.6 — s Device must operate at a minimum of 10 MHz 1.5TCY — 100 kHz mode 4.7 — s Device must operate at a minimum of 1.5 MHz 400 kHz mode 1.
PIC16F193X/LF193X TABLE 29-17: CAP SENSE OSCILLATOR SPECIFICATIONS Param. No. CS01 CS02 Symbol ISRC ISNK Characteristic Current Source Current Sink CS03 VCTH Cap Threshold CS04 VCTL Cap Threshold CS05 VCHYST Cap Hysteresis (VCTH-VCTL) Min. Typ† Max. Units -3 -8 -15 A Medium -0.8 -1.5 -3 A Low -0.1 -0.3 -0.4 A High High 2.5 7.5 14 A Medium 0.6 1.5 2.9 A Low 0.1 0.25 0.6 A — 0.8 — mV High Medium Low — 0.
PIC16F193X/LF193X 30.0 ELECTRICAL SPECIFICATIONS (PIC16F/LF1934/36/37) Absolute Maximum Ratings(†) Ambient temperature under bias....................................................................................................... -40°C to +125°C Storage temperature ........................................................................................................................ -65°C to +150°C Voltage on VDD with respect to VSS, PIC16F1934/36/37 ...................................................
PIC16F193X/LF193X PIC16F/LF1934/36/37 VOLTAGE FREQUENCY GRAPH, -40°C TA +125°C FIGURE 30-1: VDD (V) 5.5 3.6 2.5 2.3 2.0 1.8 0 4 10 16 32 Frequency (MHz) Note 1: The shaded region indicates the permissible combinations of voltage and frequency. 2: Refer to Table 30-1 for each Oscillator mode’s supported frequencies. PIC16F/LF1934/36/37 VOLTAGE FREQUENCY GRAPH, -40°C TA +125°C VDD (V) FIGURE 30-2: 3.6 2.5 2.3 2.0 1.
PIC16F193X/LF193X FIGURE 30-3: HFINTOSC FREQUENCY ACCURACY OVER DEVICE VDD AND TEMPERATURE 125 ± 5% 85 Temperature (°C) ± 2.5% 60 ± 2% 25 0 -20 -40 1.8 ± 5% 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VDD (V) 2009 Microchip Technology Inc.
PIC16F193X/LF193X 30.1 DC Characteristics: PIC16F/LF1934/36/37-I/E (Industrial, Extended) PIC16LF1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param. No. D001 Sym. VDD D001 D002* VDR D002* Characteristic Min. Typ† Max.
PIC16F193X/LF193X FIGURE 30-4: POR AND POR REARM WITH SLOW RISING VDD VDD VPOR VPORR VSS NPOR POR REARM VSS TVLOW(2) Note 1: 2: 3: TPOR(3) When NPOR is low, the device is held in Reset. TPOR 1 s typical. TVLOW 2.7 s typical. 2009 Microchip Technology Inc.
PIC16F193X/LF193X 30.2 DC Characteristics: PIC16F/LF1934/36/37-I/E (Industrial, Extended) PIC16LF1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 30.2 DC Characteristics: PIC16F/LF1934/36/37-I/E (Industrial, Extended) (Continued) PIC16LF1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 30.2 DC Characteristics: PIC16F/LF1934/36/37-I/E (Industrial, Extended) (Continued) PIC16LF1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 30.3 DC Characteristics: PIC16F/LF1934/36/37-I/E (Power-Down) PIC16LF1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Power-down Base Current Min. Typ† Conditions Max. +85°C Max.
PIC16F193X/LF193X 30.3 DC Characteristics: PIC16F/LF1934/36/37-I/E (Power-Down) (Continued) PIC16LF1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1934/36/37 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Min.
PIC16F193X/LF193X 30.4 DC Characteristics: PIC16F/LF1934/36/37-I/E DC CHARACTERISTICS Param No. Sym. VIL Characteristic Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Min. Typ† Max. Units — — with Schmitt Trigger buffer with I2C™ levels Conditions — 0.8 V 4.5V VDD 5.5V — 0.15 VDD V 1.8V VDD 4.5V — — 0.2 VDD V 2.0V VDD 5.5V — — 0.
PIC16F193X/LF193X 30.4 DC Characteristics: PIC16F/LF1934/36/37-I/E (Continued) DC CHARACTERISTICS Param No. Sym. Characteristic Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Min. Typ† Max.
PIC16F193X/LF193X 30.5 Memory Programming Requirements Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C DC CHARACTERISTICS Param No. Sym. Characteristic Min. Typ† Max. Units Conditions Program Memory Programming Specifications D110 VIHH Voltage on MCLR/VPP/RE3 pin 8.0 — 9.0 V D111 IDDP Supply Current during Programming — — 10 mA VDD for Bulk Erase 2.7 — VDD max. V D112 D113 VPEW VDD for Write or Row Erase VDD min. — VDD max.
PIC16F193X/LF193X 30.6 Thermal Considerations Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param No. TH01 TH02 TH03 TH04 TH05 Sym. Characteristic JA Thermal Resistance Junction to Ambient JC TJMAX PD Thermal Resistance Junction to Case Maximum Junction Temperature Power Dissipation PINTERNAL Internal Power Dissipation Typ. Units Conditions 60 C/W 28-pin SPDIP package 80 C/W 28-pin SOIC package 90 C/W 28-pin SSOP package 27.
PIC16F193X/LF193X 30.7 Timing Parameter Symbology The timing parameter symbols have been created with one of the following formats: 1. TppS2ppS 2.
PIC16F193X/LF193X 30.8 AC Characteristics: PIC16F/LF1934/36/37-I/E FIGURE 30-6: CLOCK TIMING Q4 Q1 Q2 Q3 Q4 Q1 OSC1/CLKIN OS02 OS04 OS04 OS03 OSC2/CLKOUT (LP,XT,HS Modes) OSC2/CLKOUT (CLKOUT Mode) TABLE 30-1: CLOCK OSCILLATOR TIMING REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param No. OS01 Sym.
PIC16F193X/LF193X TABLE 30-2: OSCILLATOR PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. Sym. Characteristic Freq. Min. Tolerance Typ† Max. Units Conditions HFOSC Internal Calibrated HFINTOSC Frequency(2) 2% 2.5% — — 16.0 16.0 — — MHz MHz 0°C TA +60°C, VDD 2.5V +60°C TA +85°C, VDD 2.5V 5% — 16.0 — MHz -40°C TA +125°C OS08A MFOSC Internal Calibrated MFINTOSC Frequency(2) 2% 2.
PIC16F193X/LF193X FIGURE 30-7: Cycle CLKOUT AND I/O TIMING Write Fetch Read Execute Q4 Q1 Q2 Q3 FOSC OS12 OS11 OS20 OS21 CLKOUT OS19 OS16 OS13 OS18 OS17 I/O pin (Input) OS14 OS15 I/O pin (Output) New Value Old Value OS18, OS19 DS41364D-page 428 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X TABLE 30-4: CLKOUT AND I/O TIMING PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. Sym. Characteristic Min. Typ† Max. Units Conditions — — 70 ns VDD = 3.3-5.0V — — 72 ns VDD = 3.3-5.
PIC16F193X/LF193X FIGURE 30-9: BROWN-OUT RESET TIMING AND CHARACTERISTICS VDD VBOR and VHYST VBOR (Device in Brown-out Reset) (Device not in Brown-out Reset) 37 Reset 33(1) (due to BOR) Note 1: 64 ms delay only if PWRTE bit in the Configuration Word register is programmed to ‘0’. 2 ms delay if PWRTE = 0 and VREGEN = 1. DS41364D-page 430 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X TABLE 30-5: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER AND BROWN-OUT RESET PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. Sym. Characteristic Min. Typ† Max. Units Conditions 2 5 — — — — s s VDD = 3.3-5V, -40°C to +85°C VDD = 3.3-5V 10 18 27 ms VDD = 3.
PIC16F193X/LF193X TABLE 30-6: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. 40* Sym. Characteristic TT0H T0CKI High Pulse Width Min. No Prescaler TT0L T0CKI Low Pulse Width No Prescaler TT0P T0CKI Period 45* TT1H T1CKI High Synchronous, No Prescaler Time Synchronous, with Prescaler — — ns — — ns 0.5 TCY + 20 — — ns 10 — — ns Greater of: 20 or TCY + 40 N — — ns 0.
PIC16F193X/LF193X TABLE 30-8: PIC16F/LF1934/36/37 A/D CONVERTER (ADC) CHARACTERISTICS: Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param Sym. No. Characteristic Min. Typ† Max. Units Conditions AD01 NR Resolution — — 10 AD02 EIL Integral Error — — ±1.7 AD03 EDL Differential Error — — ±1 AD04 EOFF Offset Error — — ±2.5 LSb VREF = 3.0V AD05 EGN LSb VREF = 3.
PIC16F193X/LF193X FIGURE 30-12: PIC16F/LF1934/36/37 A/D CONVERSION TIMING (NORMAL MODE) BSF ADCON0, GO AD134 1 TCY (TOSC/2(1)) AD131 Q4 AD130 A/D CLK 7 A/D Data 6 5 4 3 2 1 0 NEW_DATA OLD_DATA ADRES 1 TCY ADIF GO DONE Sampling Stopped AD132 Sample Note 1: If the A/D clock source is selected as RC, a time of TCY is added before the A/D clock starts. This allows the SLEEP instruction to be executed.
PIC16F193X/LF193X TABLE 30-10: COMPARATOR SPECIFICATIONS Operating Conditions: 1.8V < VDD < 5.5V, -40°C < TA < +125°C (unless otherwise stated). Param No. Sym. Characteristics Min. Typ. Max. Units CM01 VIOFF Input Offset Voltage — ±7.
PIC16F193X/LF193X TABLE 30-12: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param. No. Symbol Characteristic Min. Max. Units — 80 ns US120 TCKH2DTV SYNC XMIT (Master and Slave) Clock high to data-out valid 3.0-5.5V 1.8-5.5V — 100 ns US121 TCKRF Clock out rise time and fall time (Master mode) 3.0-5.5V — 45 ns 1.8-5.5V — 50 ns US122 TDTRF Data-out rise time and fall time 3.0-5.
PIC16F193X/LF193X FIGURE 30-16: SPI MASTER MODE TIMING (CKE = 0, SMP = 0) SS SP70 SCK (CKP = 0) SP71 SP72 SP78 SP79 SP79 SP78 SCK (CKP = 1) SP80 bit 6 - - - - - -1 MSb SDO LSb SP75, SP76 SDI MSb In bit 6 - - - -1 LSb In SP74 SP73 Note: Refer to Figure 30-5 for load conditions.
PIC16F193X/LF193X FIGURE 30-18: SPI SLAVE MODE TIMING (CKE = 0) SS SP70 SCK (CKP = 0) SP83 SP71 SP72 SP78 SP79 SP79 SP78 SCK (CKP = 1) SP80 MSb SDO LSb bit 6 - - - - - -1 SP77 SP75, SP76 SDI MSb In bit 6 - - - -1 LSb In SP74 SP73 Note: Refer to Figure 30-5 for load conditions.
PIC16F193X/LF193X TABLE 30-14: SPI MODE REQUIREMENTS Param No. Symbol Characteristic SP70* TSSL2SCH, SS to SCK or SCK input TSSL2SCL Min. Typ† Max.
PIC16F193X/LF193X TABLE 30-15: I2C™ BUS START/STOP BITS REQUIREMENTS Param No. Symbol Characteristic SP90* TSU:STA SP91* THD:STA SP92* TSU:STO SP93 THD:STO Stop condition Start condition Typ 4700 — Max. Units — Setup time 400 kHz mode 600 — — Start condition 100 kHz mode 4000 — — Hold time 400 kHz mode 600 — — Stop condition 100 kHz mode 4700 — — Setup time Hold time * 100 kHz mode Min.
PIC16F193X/LF193X TABLE 30-16: I2C™ BUS DATA REQUIREMENTS Param. No. Symbol SP100* THIGH Characteristic Clock high time Min. Max. Units 100 kHz mode 4.0 — s Device must operate at a minimum of 1.5 MHz 400 kHz mode 0.6 — s Device must operate at a minimum of 10 MHz 1.5TCY — 100 kHz mode 4.7 — s Device must operate at a minimum of 1.5 MHz 400 kHz mode 1.
PIC16F193X/LF193X TABLE 30-17: CAP SENSE OSCILLATOR SPECIFICATIONS Param. No. CS01 CS02 Symbol ISRC ISNK Characteristic Current Source Current Sink CS03 VCTH Cap Threshold CS04 VCTL Cap Threshold CS05 VCHYST Cap Hysteresis (VCTH-VCTL) Min. Typ† Max. Units -3 -8 -15 A Medium -0.8 -1.5 -3 A Low -0.1 -0.3 -0.4 A High High 2.5 7.5 14 A Medium 0.6 1.5 2.9 A Low 0.1 0.25 0.6 A — 0.8 — mV High Medium Low — 0.
PIC16F193X/LF193X 31.0 ELECTRICAL SPECIFICATIONS (PIC16F/LF1938/39) Absolute Maximum Ratings(†) Ambient temperature under bias....................................................................................................... -40°C to +125°C Storage temperature ........................................................................................................................ -65°C to +150°C Voltage on VDD with respect to VSS, PIC16F1938/39 .........................................................
PIC16F193X/LF193X PIC16F/LF1938/39 VOLTAGE FREQUENCY GRAPH, -40°C TA +125°C FIGURE 31-1: VDD (V) 5.5 3.6 2.5 2.3 2.0 1.8 0 4 10 16 32 Frequency (MHz) Note 1: The shaded region indicates the permissible combinations of voltage and frequency. 2: Refer to Table 31-1 for each Oscillator mode’s supported frequencies. PIC16F/LF1938/39 VOLTAGE FREQUENCY GRAPH, -40°C TA +125°C VDD (V) FIGURE 31-2: 3.6 2.5 2.3 2.0 1.
PIC16F193X/LF193X FIGURE 31-3: HFINTOSC FREQUENCY ACCURACY OVER DEVICE VDD AND TEMPERATURE 125 ± 5% 85 Temperature (°C) ± 2.5% 60 ± 2% 25 0 -20 -40 1.8 ± 5% 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VDD (V) 2009 Microchip Technology Inc.
PIC16F193X/LF193X 31.1 DC Characteristics: PIC16F/LF1938/39-I/E (Industrial, Extended) PIC16LF1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param. No. D001 Sym. VDD D001 D002* VDR D002* Characteristic Min. Typ† Max.
PIC16F193X/LF193X FIGURE 31-4: POR AND POR REARM WITH SLOW RISING VDD VDD VPOR VPORR VSS NPOR POR REARM VSS TVLOW(2) Note 1: 2: 3: TPOR(3) When NPOR is low, the device is held in Reset. TPOR 1 s typical. TVLOW 2.7 s typical. 2009 Microchip Technology Inc.
PIC16F193X/LF193X 31.2 DC Characteristics: PIC16F/LF1938/39-I/E (Industrial, Extended) PIC16LF1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 31.2 DC Characteristics: PIC16F/LF1938/39-I/E (Industrial, Extended) (Continued) PIC16LF1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 31.2 DC Characteristics: PIC16F/LF1938/39-I/E (Industrial, Extended) (Continued) PIC16LF1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Conditions Min. Typ† Max.
PIC16F193X/LF193X 31.3 DC Characteristics: PIC16F/LF1938/39-I/E (Power-Down) PIC16LF1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Power-down Base Current Min. Typ† Conditions Max. +85°C Max.
PIC16F193X/LF193X 31.3 DC Characteristics: PIC16F/LF1938/39-I/E (Power-Down) (Continued) PIC16LF1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended PIC16F1938/39 Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Param No. Device Characteristics Min.
PIC16F193X/LF193X 31.4 DC Characteristics: PIC16F/LF1938/39-I/E DC CHARACTERISTICS Param No. Sym. VIL Characteristic Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Min. Typ† Max. Units — — with Schmitt Trigger buffer with I2C™ levels Conditions — 0.8 V 4.5V VDD 5.5V — 0.15 VDD V 1.8V VDD 4.5V — — 0.2 VDD V 2.0V VDD 5.5V — — 0.
PIC16F193X/LF193X 31.4 DC Characteristics: PIC16F/LF1938/39-I/E (Continued) DC CHARACTERISTICS Param No. Sym. Characteristic Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +85°C for industrial -40°C TA +125°C for extended Min. Typ† Max.
PIC16F193X/LF193X 31.5 Memory Programming Requirements Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C DC CHARACTERISTICS Param No. Sym. Characteristic Min. Typ† Max. Units Conditions Program Memory Programming Specifications D110 VIHH Voltage on MCLR/VPP/RE3 pin 8.0 — 9.0 V D111 IDDP Supply Current during Programming — — 10 mA VDD for Bulk Erase 2.7 — VDD max. V D112 D113 VPEW VDD for Write or Row Erase VDD min. — VDD max.
PIC16F193X/LF193X 31.6 Thermal Considerations Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param No. TH01 TH02 TH03 TH04 TH05 Sym. Characteristic JA Thermal Resistance Junction to Ambient JC TJMAX PD Thermal Resistance Junction to Case Maximum Junction Temperature Power Dissipation PINTERNAL Internal Power Dissipation Typ. Units Conditions 60 C/W 28-pin SPDIP package 80 C/W 28-pin SOIC package 90 C/W 28-pin SSOP package 27.
PIC16F193X/LF193X 31.7 Timing Parameter Symbology The timing parameter symbols have been created with one of the following formats: 1. TppS2ppS 2.
PIC16F193X/LF193X 31.8 AC Characteristics: PIC16F/LF1938/39-I/E FIGURE 31-6: CLOCK TIMING Q4 Q1 Q2 Q3 Q4 Q1 OSC1/CLKIN OS02 OS04 OS04 OS03 OSC2/CLKOUT (LP,XT,HS Modes) OSC2/CLKOUT (CLKOUT Mode) TABLE 31-1: CLOCK OSCILLATOR TIMING REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param No. OS01 Sym.
PIC16F193X/LF193X TABLE 31-2: OSCILLATOR PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. Sym. Characteristic Freq. Tolerance Min. Typ† Max. Units Conditions — — MHz MHz 0°C TA +60°C, VDD 2.5V +60°C TA +85°C, VDD 2.5V HFOSC Internal Calibrated HFINTOSC Frequency(2) 2% 2.5% — — 16.0 16.0 5% — 16.0 — MHz -40°C TA +125°C OS08A MFOSC Internal Calibrated MFINTOSC Frequency(2) 2% 2.
PIC16F193X/LF193X FIGURE 31-7: Cycle CLKOUT AND I/O TIMING Write Fetch Read Execute Q4 Q1 Q2 Q3 FOSC OS12 OS11 OS20 OS21 CLKOUT OS19 OS16 OS13 OS18 OS17 I/O pin (Input) OS14 OS15 I/O pin (Output) New Value Old Value OS18, OS19 DS41364D-page 460 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X TABLE 31-4: CLKOUT AND I/O TIMING PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. Sym. Characteristic Min. Typ† Max. Units Conditions — — 70 ns VDD = 3.3-5.0V — — 72 ns VDD = 3.3-5.
PIC16F193X/LF193X FIGURE 31-9: BROWN-OUT RESET TIMING AND CHARACTERISTICS VDD VBOR and VHYST VBOR (Device in Brown-out Reset) (Device not in Brown-out Reset) 37 Reset 33(1) (due to BOR) Note 1: 64 ms delay only if PWRTE bit in the Configuration Word register is programmed to ‘0’. 2 ms delay if PWRTE = 0 and VREGEN = 1. DS41364D-page 462 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X TABLE 31-5: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER AND BROWN-OUT RESET PARAMETERS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. Sym. Characteristic Min. Typ† Max. Units Conditions 2 5 — — — — s s VDD = 3.3-5V, -40°C to +85°C VDD = 3.3-5V 10 18 27 ms VDD = 3.
PIC16F193X/LF193X TABLE 31-6: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param No. 40* Sym. Characteristic TT0H T0CKI High Pulse Width Min. No Prescaler TT0L T0CKI Low Pulse Width No Prescaler TT0P T0CKI Period 45* TT1H T1CKI High Synchronous, No Prescaler Time Synchronous, with Prescaler — — ns — — ns 0.5 TCY + 20 — — ns 10 — — ns Greater of: 20 or TCY + 40 N — — ns 0.
PIC16F193X/LF193X TABLE 31-8: PIC16F/LF1938/39 A/D CONVERTER (ADC) CHARACTERISTICS: Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C TA +125°C Param Sym. No. Characteristic Min. Typ† Max. Units Conditions AD01 NR Resolution — — 10 AD02 EIL Integral Error — — ±1.7 AD03 EDL Differential Error — — ±1 AD04 EOFF Offset Error — — ±2.5 LSb VREF = 3.0V AD05 EGN LSb VREF = 3.
PIC16F193X/LF193X FIGURE 31-12: PIC16F/LF1938/39 A/D CONVERSION TIMING (NORMAL MODE) BSF ADCON0, GO AD134 1 TCY (TOSC/2(1)) AD131 Q4 AD130 A/D CLK 7 A/D Data 6 5 4 3 2 1 0 NEW_DATA OLD_DATA ADRES 1 TCY ADIF GO DONE Sampling Stopped AD132 Sample Note 1: If the A/D clock source is selected as RC, a time of TCY is added before the A/D clock starts. This allows the SLEEP instruction to be executed.
PIC16F193X/LF193X TABLE 31-10: COMPARATOR SPECIFICATIONS Operating Conditions: 1.8V < VDD < 5.5V, -40°C < TA < +125°C (unless otherwise stated). Param No. Sym. Characteristics Min. Typ. Max. Units CM01 VIOFF Input Offset Voltage — ±7.
PIC16F193X/LF193X TABLE 31-12: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C TA +125°C Param. No. Symbol Characteristic Min. Max. Units — 80 ns US120 TCKH2DTV SYNC XMIT (Master and Slave) Clock high to data-out valid 3.0-5.5V 1.8-5.5V — 100 ns US121 TCKRF Clock out rise time and fall time (Master mode) 3.0-5.5V — 45 ns 1.8-5.5V — 50 ns US122 TDTRF Data-out rise time and fall time 3.0-5.
PIC16F193X/LF193X FIGURE 31-16: SPI MASTER MODE TIMING (CKE = 0, SMP = 0) SS SP70 SCK (CKP = 0) SP71 SP72 SP78 SP79 SP79 SP78 SCK (CKP = 1) SP80 bit 6 - - - - - -1 MSb SDO LSb SP75, SP76 SDI MSb In bit 6 - - - -1 LSb In SP74 SP73 Note: Refer to Figure 31-5 for load conditions.
PIC16F193X/LF193X FIGURE 31-18: SPI SLAVE MODE TIMING (CKE = 0) SS SP70 SCK (CKP = 0) SP83 SP71 SP72 SP78 SP79 SP79 SP78 SCK (CKP = 1) SP80 MSb SDO LSb bit 6 - - - - - -1 SP77 SP75, SP76 SDI MSb In bit 6 - - - -1 LSb In SP74 SP73 Note: Refer to Figure 31-5 for load conditions.
PIC16F193X/LF193X TABLE 31-14: SPI MODE REQUIREMENTS Param No. Symbol Characteristic SP70* TSSL2SCH, SS to SCK or SCK input TSSL2SCL Min. Typ† Max.
PIC16F193X/LF193X TABLE 31-15: I2C™ BUS START/STOP BITS REQUIREMENTS Param No. Symbol Characteristic SP90* TSU:STA SP91* THD:STA SP92* TSU:STO SP93 THD:STO Stop condition Start condition Typ 4700 — Max. Units — Setup time 400 kHz mode 600 — — Start condition 100 kHz mode 4000 — — Hold time 400 kHz mode 600 — — Stop condition 100 kHz mode 4700 — — Setup time Hold time * 100 kHz mode Min.
PIC16F193X/LF193X TABLE 31-16: I2C™ BUS DATA REQUIREMENTS Param. No. Symbol SP100* THIGH Characteristic Clock high time Min. Max. Units 100 kHz mode 4.0 — s Device must operate at a minimum of 1.5 MHz 400 kHz mode 0.6 — s Device must operate at a minimum of 10 MHz 1.5TCY — 100 kHz mode 4.7 — s Device must operate at a minimum of 1.5 MHz 400 kHz mode 1.
PIC16F193X/LF193X TABLE 31-17: CAP SENSE OSCILLATOR SPECIFICATIONS Param. No. CS01 CS02 Symbol ISRC ISNK Characteristic Current Source Current Sink CS03 VCTH Cap Threshold CS04 VCTL Cap Threshold CS05 VCHYST Cap Hysteresis (VCTH-VCTL) Min. Typ† Max. Units -3 -8 -15 A Medium -0.8 -1.5 -3 A Low -0.1 -0.3 -0.4 A High High 2.5 7.5 14 A Medium 0.6 1.5 2.9 A Low 0.1 0.25 0.6 A — 0.8 — mV High Medium Low — 0.
PIC16F193X/LF193X 32.0 DC AND AC CHARACTERISTICS GRAPHS AND CHARTS Graphs and charts are not available at this time. 2009 Microchip Technology Inc.
PIC16F193X/LF193X NOTES: DS41364D-page 476 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X 33.0 DEVELOPMENT SUPPORT 33.
PIC16F193X/LF193X 33.2 MPASM Assembler 33.5 The MPASM Assembler is a full-featured, universal macro assembler for all PIC MCUs. The MPASM Assembler generates relocatable object files for the MPLINK Object Linker, Intel® standard HEX files, MAP files to detail memory usage and symbol reference, absolute LST files that contain source lines and generated machine code and COFF files for debugging.
PIC16F193X/LF193X 33.7 MPLAB ICE 2000 High-Performance In-Circuit Emulator 33.9 The MPLAB ICE 2000 In-Circuit Emulator is intended to provide the product development engineer with a complete microcontroller design tool set for PIC microcontrollers. Software control of the MPLAB ICE 2000 In-Circuit Emulator is advanced by the MPLAB Integrated Development Environment, which allows editing, building, downloading and source debugging from a single environment.
PIC16F193X/LF193X 33.11 PICSTART Plus Development Programmer 33.13 Demonstration, Development and Evaluation Boards The PICSTART Plus Development Programmer is an easy-to-use, low-cost, prototype programmer. It connects to the PC via a COM (RS-232) port. MPLAB Integrated Development Environment software makes using the programmer simple and efficient. The PICSTART Plus Development Programmer supports most PIC devices in DIP packages up to 40 pins.
PIC16F193X/LF193X 34.0 PACKAGING INFORMATION 34.1 Package Marking Information 28-Lead SPDIP Example PIC16F1936 -I/SP e3 0810017 XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXX YYWWNNN 40-Lead PDIP Example XXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXX YYWWNNN 28-Lead QFN/UQFN PIC16F1937 -I/P e3 0810017 Example 16F1936 -I/ML e3 0810017 XXXXXXXX XXXXXXXX YYWWNNN Legend: XX...
PIC16F193X/LF193X Package Marking Information (Continued) Example 44-Lead QFN XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX YYWWNNN PIC16F1937 -I/ML e3 0810017 28-Lead SOIC Example XXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXX YYWWNNN PIC16F1936 -I/SO e3 0810017 28-Lead SSOP Example XXXXXXXXXXXX XXXXXXXXXXXX YYWWNNN PIC16F1936 -I/SS e3 0810017 44-Lead TQFP Example XXXXXXXXXXX XXXXXXXXXXX XXXXXXXXXXX YYWWNNN DS41364D-page 482 PIC16F1937 -I/PT e3 0810017 Preliminary 2009 Microchip Tech
PIC16F193X/LF193X 34.2 Package Details The following sections give the technical details of the packages.
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PIC16F193X/LF193X /HDG 3ODVWLF 4XDG )ODW 1R /HDG 3DFNDJH 0/ ± [ PP %RG\ >4)1@ ZLWK PP &RQWDFW /HQJWK 1RWH )RU WKH PRVW FXUUHQW SDFNDJH GUDZLQJV SOHDVH VHH WKH 0LFURFKLS 3DFNDJLQJ 6SHFLILFDWLRQ ORFDWHG DW KWWS ZZZ PLFURFKLS FRP SDFNDJLQJ DS41364D-page 486 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2009 Microchip Technology Inc.
PIC16F193X/LF193X Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS41364D-page 488 Preliminary 2009 Microchip Technology Inc.
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PIC16F193X/LF193X /HDG 3ODVWLF 4XDG )ODW 1R /HDG 3DFNDJH 0/ ± [ PP %RG\ >4)1@ 1RWH )RU WKH PRVW FXUUHQW SDFNDJH GUDZLQJV SOHDVH VHH WKH 0LFURFKLS 3DFNDJLQJ 6SHFLILFDWLRQ ORFDWHG DW KWWS ZZZ PLFURFKLS FRP SDFNDJLQJ DS41364D-page 490 Preliminary 2009 Microchip Technology Inc.
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PIC16F193X/LF193X /HDG 3ODVWLF 7KLQ 4XDG )ODWSDFN 37 ± [ [ PP %RG\ PP >74)3@ 1RWH )RU WKH PRVW FXUUHQW SDFNDJH GUDZLQJV SOHDVH VHH WKH 0LFURFKLS 3DFNDJLQJ 6SHFLILFDWLRQ ORFDWHG DW KWWS ZZZ PLFURFKLS FRP SDFNDJLQJ DS41364D-page 494 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X APPENDIX A: DATA SHEET REVISION HISTORY Revision A APPENDIX B: MIGRATING FROM OTHER PIC® DEVICES This discusses some of the issues in migrating from other PIC® devices to the PIC16F193X/LF193X family of devices. Original release (12/2008) Revision B (04/2009) Revised data sheet title; Revised Features section. B.1 PIC16F917 to PIC16F193X/LF193X TABLE B-1: Revision C (12/2009) Added PIC16L/LF1933/34. General updates. FEATURE COMPARISON Feature PIC16F917 PIC16F1937 Max.
PIC16F193X/LF193X NOTES: DS41364D-page 496 Preliminary 2009 Microchip Technology Inc.
PIC16F193X/LF193X INDEX A A/D Specifications............................................ 399, 431, 463 Absolute Maximum Ratings (PIC16F/LF1933) ................. 377 Absolute Maximum Ratings (PIC16F/LF1934/36/37) ....... 409 Absolute Maximum Ratings (PIC16F/LF1938/39) ............ 441 AC Characteristics Industrial and Extended .................................... 424, 456 Industrial and Extended (PIC16F/LF1933) ............... 392 Load Conditions ........................................
PIC16F193X/LF193X Resolution ......................................................... 214 System Clock Frequency Changes................... 215 PWM Operation ........................................................ 212 PWM Overview ......................................................... 212 PWM Period .............................................................. 213 PWM Setup ............................................................... 213 CCP1CON Register ............................................
PIC16F193X/LF193X Asynchronous Mode ................................................. 289 12-bit Break Transmit and Receive .................. 307 Associated Registers Receive..................................................... 295 Transmit.................................................... 291 Auto-Wake-up on Break ................................... 305 Baud Rate Generator (BRG) ............................ 299 Clock Accuracy ................................................. 296 Receiver................
PIC16F193X/LF193X Associated registers w/ Interrupts ............................. 104 Configuration Word w/ Clock Sources ........................ 82 Configuration Word w/ LDO ...................................... 105 TMR1 ........................................................................ 195 INTOSC Specifications ..................................... 393, 425, 457 IOCBF Register................................................................. 148 IOCBN Register .....................................
PIC16F193X/LF193X Weak Pull-up .................................................... 134 ANSELB Register ..................................................... 133 Associated Registers ................................................ 136 Interrupt-on-Change.................................................. 133 P1B/P1C/P1D.See Enhanced Capture/Compare/ PWM+ (ECCP+) ............................................... 133 Pin Descriptions and Diagrams................................. 134 PORTB Register .............
PIC16F193X/LF193X PWMxCON (Enhanced PWM Control) ..................... 233 RCSTA (Receive Status and Control)....................... 297 Special Function, Summary ........................................ 39 SRCON0 (SR Latch Control 0) ................................. 183 SRCON1 (SR Latch Control 1) ................................. 184 SSPADD (MSSP Address and Baud Rate, I2C Mode).......................................................... 286 SSPCON1 (MSSP Control 1)....................................
PIC16F193X/LF193X First Start Bit Timing ................................................. 268 Full-Bridge PWM Output ........................................... 221 Half-Bridge PWM Output .................................. 219, 225 I2C Bus Data ............................................. 406, 438, 470 I2C Bus Start/Stop Bits.............................. 405, 437, 469 I2C Master Mode (7 or 10-Bit Transmission) ............ 271 I2C Master Mode (7-Bit Reception)...........................
PIC16F193X/LF193X NOTES: DS41364D-page 504 Preliminary 2009 Microchip Technology Inc.
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PIC16F193X/LF193X PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO.
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