Datasheet
Table Of Contents
- Low-Power Features:
- LCD Driver Module Features:
- Special Microcontroller Features:
- Flexible Oscillator Structure:
- Peripheral Highlights:
- Pin Diagrams
- Pin Diagrams (Continued)
- Table of Contents
- Most Current Data Sheet
- Errata
- Customer Notification System
- 1.0 Device Overview
- 1.1 Core Features
- 1.2 LCD Driver
- 1.3 Other Special Features
- 1.4 Details on Individual Family Members
- TABLE 1-1: Device Features for the PIC18F85J90 family (64-pin Devices)
- TABLE 1-2: Device Features for the PIC18F85J90 family (80-pin Devices)
- FIGURE 1-1: PIC18F6XJ90 (64-pin) Block Diagram
- FIGURE 1-2: PIC18F8XJ90 (80-pin) Block Diagram
- TABLE 1-3: PIC18F6XJ90 Pinout I/O Descriptions
- TABLE 1-4: PIC18F8XJ90 Pinout I/O Descriptions
- 2.0 Guidelines for Getting Started with PIC18FJ Microcontrollers
- 3.0 Oscillator Configurations
- 3.1 Oscillator Types
- 3.2 Control Registers
- 3.3 Clock Sources and Oscillator Switching
- 3.4 External Oscillator Modes
- 3.5 Internal Oscillator Block
- 3.6 Effects of Power-Managed Modes on the Various Clock Sources
- 3.7 Power-up Delays
- 4.0 Power-Managed Modes
- 5.0 Reset
- 6.0 Memory Organization
- 6.1 Program Memory Organization
- 6.2 PIC18 Instruction Cycle
- 6.3 Data Memory Organization
- 6.4 Data Addressing Modes
- 6.5 Program Memory and the Extended Instruction Set
- 6.6 Data Memory and the Extended Instruction Set
- 7.0 Flash Program Memory
- 7.1 Table Reads and Table Writes
- 7.2 Control Registers
- 7.3 Reading the Flash Program Memory
- 7.4 Erasing Flash Program Memory
- 7.5 Writing to Flash Program Memory
- 7.6 Flash Program Operation During Code Protection
- 8.0 8 X 8 Hardware Multiplier
- 8.1 Introduction
- 8.2 Operation
- EXAMPLE 8-1: 8 x 8 Unsigned Multiply Routine
- EXAMPLE 8-2: 8 x 8 Signed Multiply Routine
- TABLE 8-1: Performance Comparison for Various Multiply Operations
- EQUATION 8-1: 16 x 16 Unsigned Multiplication Algorithm
- EXAMPLE 8-3: 16 x 16 Unsigned Multiply Routine
- EQUATION 8-2: 16 x 16 Signed Multiplication Algorithm
- EXAMPLE 8-4: 16 x 16 Signed Multiply Routine
- 9.0 Interrupts
- 10.0 I/O Ports
- FIGURE 10-1: Generic I/O Port Operation
- 10.1 I/O Port Pin Capabilities
- 10.2 PORTA, TRISA and LATA Registers
- 10.3 PORTB, TRISB and LATB Registers
- 10.4 PORTC, TRISC and LATC Registers
- 10.5 PORTD, TRISD and LATD Registers
- 10.6 PORTE, TRISE and LATE Registers
- 10.7 PORTF, LATF and TRISF Registers
- 10.8 PORTG, TRISG and LATG Registers
- 10.9 PORTH, LATH and TRISH Registers
- 10.10 PORTJ, TRISJ and LATJ Registers
- 11.0 Timer0 Module
- 12.0 Timer1 Module
- 13.0 Timer2 Module
- 14.0 Timer3 Module
- 15.0 Capture/Compare/PWM (CCP) Modules
- 16.0 Liquid Crystal Display (LCD) Driver Module
- FIGURE 16-1: LCD Driver Module Block Diagram
- 16.1 LCD Registers
- 16.2 LCD Clock Source
- 16.3 LCD Bias Generation
- 16.4 LCD Multiplex Types
- 16.5 Segment Enables
- 16.6 Pixel Control
- 16.7 LCD Frame Frequency
- 16.8 LCD Waveform Generation
- FIGURE 16-6: Type-A/Type-B Waveforms in Static Drive
- FIGURE 16-7: Type-A Waveforms in 1/2 MUX, 1/2 Bias Drive
- FIGURE 16-8: Type-B Waveforms in 1/2 MUX, 1/2 Bias Drive
- FIGURE 16-9: Type-A Waveforms in 1/2 MUX, 1/3 Bias Drive
- FIGURE 16-10: Type-B Waveforms in 1/2 MUX, 1/3 Bias Drive
- FIGURE 16-11: Type-A Waveforms in 1/3 MUX, 1/2 Bias Drive
- FIGURE 16-12: Type-B Waveforms in 1/3 MUX, 1/2 Bias Drive
- FIGURE 16-13: Type-A Waveforms in 1/3 MUX, 1/3 Bias Drive
- FIGURE 16-14: Type-B Waveforms in 1/3 MUX, 1/3 Bias Drive
- FIGURE 16-15: Type-A Waveforms in 1/4 MUX, 1/3 Bias Drive
- FIGURE 16-16: Type-B Waveforms in 1/4 MUX, 1/3 Bias Drive
- 16.9 LCD Interrupts
- 16.10 Operation During Sleep
- 16.11 Configuring the LCD Module
- 17.0 Master Synchronous Serial Port (MSSP) Module
- 17.1 Master SSP (MSSP) Module Overview
- 17.2 Control Registers
- 17.3 SPI Mode
- FIGURE 17-1: MSSP Block Diagram (SPI Mode)
- 17.3.1 Registers
- 17.3.2 Operation
- 17.3.3 Enabling SPI I/O
- 17.3.4 Open-Drain Output Option
- 17.3.5 Typical Connection
- 17.3.6 Master Mode
- 17.3.7 Slave Mode
- 17.3.8 Slave Select Synchronization
- 17.3.9 Operation in Power-Managed Modes
- 17.3.10 Effects of a Reset
- 17.3.11 Bus Mode Compatibility
- 17.4 I2C Mode
- FIGURE 17-7: MSSP Block Diagram (I2C™ Mode)
- 17.4.1 Registers
- 17.4.2 Operation
- 17.4.3 Slave Mode
- EXAMPLE 17-2: Address Masking Examples
- FIGURE 17-8: I2C™ Slave Mode Timing with SEN = 0 (Reception, 7-bit Address)
- FIGURE 17-9: I2C™ Slave Mode Timing with SEN = 0 and ADMSK<5:1> = 01011 (Reception, 7-bit Address)
- FIGURE 17-10: I2C™ Slave Mode Timing (Transmission, 7-bit Address)
- FIGURE 17-11: I2C™ Slave Mode Timing with SEN = 0 (Reception, 10-bit Address)
- FIGURE 17-12: I2C™ Slave Mode Timing with SEN = 0 and ADMSK<5:1> = 01001 (Reception, 10-bit Address)
- FIGURE 17-13: I2C™ Slave Mode Timing (Transmission, 10-bit Address)
- 17.4.4 Clock Stretching
- 17.4.5 General Call Address Support
- 17.4.6 Master Mode
- 17.4.7 Baud Rate
- 17.4.8 I2C Master Mode Start Condition Timing
- 17.4.9 I2C Master Mode Repeated Start Condition Timing
- 17.4.10 I2C Master Mode Transmission
- 17.4.11 I2C Master Mode Reception
- 17.4.12 Acknowledge Sequence Timing
- 17.4.13 Stop Condition Timing
- 17.4.14 Sleep Operation
- 17.4.15 Effects of a Reset
- 17.4.16 Multi-Master Mode
- 17.4.17 Multi -Master Communication, Bus Collision and Bus Arbitration
- FIGURE 17-27: Bus Collision Timing for Transmit and Acknowledge
- FIGURE 17-28: Bus Collision During Start Condition (SDA Only)
- FIGURE 17-29: Bus Collision During Start Condition (SCL = 0)
- FIGURE 17-30: BRG Reset Due to SDA Arbitration During Start Condition
- FIGURE 17-31: Bus Collision During a Repeated Start Condition (Case 1)
- FIGURE 17-32: Bus Collision During Repeated Start Condition (Case 2)
- FIGURE 17-33: Bus Collision During a Stop Condition (Case 1)
- FIGURE 17-34: Bus Collision During a Stop Condition (Case 2)
- TABLE 17-4: Registers Associated with I2C™ Operation
- 18.0 Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART)
- 18.1 Control Registers
- 18.2 EUSART Baud Rate Generator (BRG)
- 18.3 EUSART Asynchronous Mode
- 18.4 EUSART Synchronous Master Mode
- 18.5 EUSART Synchronous Slave Mode
- 19.0 Addressable Universal Synchronous Asynchronous Receiver Transmitter (AUSART)
- 19.1 Control Registers
- 19.2 AUSART Baud Rate Generator (BRG)
- 19.3 AUSART Asynchronous Mode
- 19.4 AUSART Synchronous Master Mode
- 19.5 AUSART Synchronous Slave Mode
- 20.0 10-bit Analog-to-Digital Converter (A/D) Module
- Register 20-1: ADCON0: A/D Control Register 0
- Register 20-2: ADCON1: A/D Control Register 1
- Register 20-3: ADCON2: A/D Control Register 2
- FIGURE 20-1: A/D Block Diagram(1,2)
- FIGURE 20-2: Analog Input Model
- 20.1 A/D Acquisition Requirements
- 20.2 Selecting and Configuring Automatic Acquisition Time
- 20.3 Selecting the A/D Conversion Clock
- 20.4 Configuring Analog Port Pins
- 20.5 A/D Conversions
- 20.6 Use of the CCP2 Trigger
- 20.7 A/D Converter Calibration
- 20.8 Operation in Power-Managed Modes
- 21.0 Comparator Module
- Register 21-1: CMCON: Comparator Module Control Register
- 21.1 Comparator Configuration
- 21.2 Comparator Operation
- 21.3 Comparator Reference
- 21.4 Comparator Response Time
- 21.5 Comparator Outputs
- 21.6 Comparator Interrupts
- 21.7 Comparator Operation During Sleep
- 21.8 Effects of a Reset
- 21.9 Analog Input Connection Considerations
- 22.0 Comparator Voltage Reference Module
- 23.0 Special Features of the CPU
- 23.1 Configuration Bits
- 23.1.1 Considerations for Configuring the PIC18F85J90 family Devices
- TABLE 23-1: Mapping of the Flash Configuration Words to the Configuration Registers
- TABLE 23-2: Configuration Bits and Device IDs
- Register 23-1: CONFIG1L: Configuration Register 1 Low (Byte Address 300000h)
- Register 23-2: CONFIG1H: Configuration Register 1 High (Byte Address 300001h)
- Register 23-3: CONFIG2L: Configuration Register 2 Low (Byte Address 300002h)
- Register 23-4: CONFIG2H: Configuration Register 2 High (Byte Address 300003h)
- Register 23-5: CONFIG3H: Configuration Register 3 High (Byte Address 300005h)
- Register 23-6: DEVID1: Device ID Register 1 for PIC18F85J90 family Devices
- Register 23-7: DEVID2: Device ID Register 2 for PIC18F85J90 family Devices
- 23.1.1 Considerations for Configuring the PIC18F85J90 family Devices
- 23.2 Watchdog Timer (WDT)
- 23.3 On-Chip Voltage Regulator
- 23.4 Two-Speed Start-up
- 23.5 Fail-Safe Clock Monitor
- 23.6 Program Verification and Code Protection
- 23.7 In-Circuit Serial Programming
- 23.8 In-Circuit Debugger
- 23.1 Configuration Bits
- 24.0 Instruction Set Summary
- 24.1 Standard Instruction Set
- 24.2 Extended Instruction Set
- 25.0 Development Support
- 25.1 MPLAB Integrated Development Environment Software
- 25.2 MPLAB C Compilers for Various Device Families
- 25.3 HI-TECH C for Various Device Families
- 25.4 MPASM Assembler
- 25.5 MPLINK Object Linker/ MPLIB Object Librarian
- 25.6 MPLAB Assembler, Linker and Librarian for Various Device Families
- 25.7 MPLAB SIM Software Simulator
- 25.8 MPLAB REAL ICE In-Circuit Emulator System
- 25.9 MPLAB ICD 3 In-Circuit Debugger System
- 25.10 PICkit 3 In-Circuit Debugger/ Programmer and PICkit 3 Debug Express
- 25.11 PICkit 2 Development Programmer/Debugger and PICkit 2 Debug Express
- 25.12 MPLAB PM3 Device Programmer
- 25.13 Demonstration/Development Boards, Evaluation Kits, and Starter Kits
- 26.0 Electrical Characteristics
- Absolute Maximum Ratings(†)
- 26.1 DC Characteristics: Supply Voltage PIC18F85J90 Family (Industrial)
- 26.2 DC Characteristics: Power-Down and Supply Current PIC18F85J90 Family (Industrial)
- 26.3 DC Characteristics: PIC18F84J90 Family (Industrial)
- 26.4 AC (Timing) Characteristics
- 26.4.1 Timing Parameter Symbology
- 26.4.2 Timing Conditions
- 26.4.3 Timing Diagrams and Specifications
- FIGURE 26-4: External Clock Timing
- TABLE 26-7: External Clock Timing Requirements
- TABLE 26-8: PLL Clock Timing Specifications (Vdd = 2.15V to 3.6V)
- TABLE 26-9: Internal RC Accuracy (INTOSC and INTRC Sources)
- FIGURE 26-5: CLKO and I/O Timing
- TABLE 26-10: CLKO and I/O Timing Requirements
- FIGURE 26-6: Reset, Watchdog Timer, Oscillator Start-up Timer and Power-up Timer Timing
- TABLE 26-11: Reset, Watchdog Timer, Oscillator Start-up Timer, Power-up Timer and Brown-out Reset Requirements
- FIGURE 26-7: Timer0 and Timer1 External Clock Timings
- TABLE 26-12: Timer0 and Timer1 External Clock Requirements
- FIGURE 26-8: Capture/Compare/PWM Timings (CCP1, CCP2 Modules)
- TABLE 26-13: Capture/Compare/PWM Requirements (CCP1, CCP2 Modules)
- FIGURE 26-9: Example SPI Master Mode Timing (CKE = 0)
- TABLE 26-14: Example SPI Mode Requirements (Master Mode, Cke = 0)
- FIGURE 26-10: Example SPI Master Mode Timing (CKE = 1)
- TABLE 26-15: Example SPI Mode Requirements (Master Mode, CKE = 1)
- FIGURE 26-11: Example SPI Slave Mode Timing (CKE = 0)
- TABLE 26-16: Example SPI Mode Requirements (Slave Mode Timing, CKE = 0)
- FIGURE 26-12: Example SPI Slave Mode Timing (CKE = 1)
- TABLE 26-17: Example SPI Slave Mode Requirements (CKE = 1)
- FIGURE 26-13: I2C™ Bus Start/Stop Bits Timing
- TABLE 26-18: I2C™ Bus Start/Stop Bits Requirements (Slave Mode)
- FIGURE 26-14: I2C™ Bus Data Timing
- TABLE 26-19: I2C™ Bus Data Requirements (Slave Mode)
- FIGURE 26-15: MSSP I2C™ Bus Start/Stop Bits Timing Waveforms
- TABLE 26-20: MSSP I2C™ Bus Start/Stop Bits Requirements
- FIGURE 26-16: MSSP I2C™ Bus Data Timing
- TABLE 26-21: MSSP I2C™ Bus Data Requirements
- FIGURE 26-17: EUSART/AUSART Synchronous Transmission (Master/Slave) Timing
- TABLE 26-22: EUSART/AUSART Synchronous Transmission Requirements
- FIGURE 26-18: EUSART/AUSART Synchronous Receive (Master/Slave) Timing
- TABLE 26-23: EUSART/AUSART Synchronous Receive Requirements
- TABLE 26-24: A/D Converter Characteristics: PIC18F85J90 family (Industrial)
- FIGURE 26-19: A/D Conversion Timing
- TABLE 26-25: A/D Conversion Requirements
- 27.0 Packaging Information
- Appendix A: Revision History
- Appendix B: Migration Between High-End Device Families
- Index
- The Microchip Web Site
- Customer Change Notification Service
- Customer Support
- Reader Response
- Product Identification System
- Worldwide Sales and Service

PIC18F85J90 FAMILY
DS39770C-page 76 2010 Microchip Technology Inc.
TMR0H Timer0 Register High Byte 0000 0000 58, 139
TMR0L Timer0 Register Low Byte xxxx xxxx 58, 139
T0CON TMR0ON T08BIT T0CS T0SE PSA T0PS2 T0PS1 T0PS0 1111 1111 58, 137
OSCCON IDLEN IRCF2 IRCF1 IRCF0 OSTS IOFS SCS1 SCS0 0100 q000 36, 58
LCDREG
— CPEN BIAS2 BIAS1 BIAS0 MODE13 CKSEL1 CKSEL0 -011 1100 58, 169
WDTCON REGSLP
— — — — — —SWDTEN0--- ---0 58, 298
RCON IPEN
—CMRI TO PD POR BOR 0-11 11q0 52, 58
TMR1H Timer1 Register High Byte xxxx xxxx 58, 145
TMR1L Timer1 Register Low Byte xxxx xxxx 58, 145
T1CON RD16 T1RUN T1CKPS1 T1CKPS0 T1OSCEN T1SYNC
TMR1CS TMR1ON 0000 0000 58, 141
TMR2 Timer2 Register 0000 0000 58, 148
PR2 Timer2 Period Register 1111 1111 58, 148
T2CON
—
T2OUTPS3
T2OUTPS2 T2OUTPS1 T2OUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 58, 147
SSPBUF MSSP Receive Buffer/Transmit Register xxxx xxxx 58, 199,
234
SSPADD MSSP Address Register in I
2
C™ Slave mode. MSSP1 Baud Rate Reload Register in I
2
C Master mode. 0000 0000 58, 234
SSPSTAT SMP CKE D/A
PSR/WUA BF 0000 0000 58, 192,
201
SSPCON1 WCOL SSPOV SSPEN CKP SSPM3 SSPM2 SSPM1 SSPM0 0000 0000 58, 193,
202
SSPCON2 GCEN ACKSTAT ACKDT ACKEN RCEN PEN RSEN SEN 0000 0000 58, 203,
204
GCEN
ACKSTAT ADMSK5
(3)
ADMSK4
(3)
ADMSK3
(3)
ADMSK2
(3)
ADMSK1
(3)
SEN
ADRESH A/D Result Register High Byte xxxx xxxx 59, 279
ADRESL A/D Result Register Low Byte xxxx xxxx 59, 279
ADCON0 ADCAL
— CHS3 CHS2 CHS1 CHS0 GO/DONE ADON 0-00 0000 59, 271
ADCON1
— — VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0 --00 0000 59, 272
ADCON2 ADFM
— ACQT2 ACQT1 ACQT0 ADCS2 ADCS1 ADCS0 0-00 0000 59, 273
LCDDATA4 S39C0
(2)
S38C0
(2)
S37C0
(2)
S36C0
(2)
S35C0
(2)
S34C0
(2)
S33C0
(2)
S32C0 xxxx xxxx 59, 167
LCDDATA3 S31C0 S30C0 S29C0 S28C0 S27C0 S26C0 S25C0 S24C0 xxxx xxxx 59, 167
LCDDATA2 S23C0 S22C0 S21C0 S20C0 S19C0 S18C0 S17C0 S16C0 xxxx xxxx 59, 167
LCDDATA1 S15C0 S14C0 S13C0 S12C0 S11C0 S10C0 S09C0 S08C0 xxxx xxxx 59, 167
LCDDATA0 S07C0 S06C0 S05C0 S04C0 S03C0 S02C0 S01C0 S00C0 xxxx xxxx 59, 167
LCDSE5
(2)
SE47 SE46 SE45 SE44 SE43 SE42 SE41 SE40 0000 0000 59, 166
LCDSE4 SE39
(2)
SE38
(2)
S37
(2)
SE36
(2)
SE35
(2)
SE34
(2)
SE33
(2)
SE32 0000 0000 59, 166
LCDSE3 SE31 SE30 SE29 SE28 SE27 SE26 SE25 SE24 0000 0000 59, 166
LCDSE2 SE23 SE22 SE21 SE20 SE19 SE18 SE17 SE16 0000 0000 59, 166
LCDSE1 SE15 SE14 SE13 SE12 SE11 SE10 SE09 SE08 0000 0000 59, 166
CVRCON CVREN CVROE CVRR CVRSS CVR3 CVR2 CVR1 CVR0 0000 0000 59, 287
CMCON C2OUT C1OUT C2INV C1INV CIS CM2 CM1 CM0 0000 0111 59, 281
TMR3H Timer3 Register High Byte xxxx xxxx 59, 151
TMR3L Timer3 Register Low Byte xxxx xxxx 59, 151
T3CON RD16 T3CCP2 T3CKPS1 T3CKPS0 T3CCP1 T3SYNC
TMR3CS TMR3ON 0000 0000 59, 149
TABLE 6-3: PIC18F85J90 FAMILY REGISTER FILE SUMMARY (CONTINUED)
File Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value on
POR, BOR
Details
on page
Legend: x = unknown, u = unchanged, - = unimplemented, q = value depends on condition, r = reserved, do not modify
Note 1: Bit 21 of the PC is only available in Test mode and Serial Programming modes.
2: These registers and/or bits are available only on 80-pin devices; otherwise, they are unimplemented and read as ‘0’. Reset states shown
are for 80-pin devices.
3: Alternate names and definitions for these bits when the MSSP module is operating in I
2
C™ Slave mode. See Section 17.4.3.2 “Address
Masking” for details.
4: The PLLEN bit is only available in specific oscillator configurations; otherwise, it is disabled and reads as ‘0’. See Section 3.4.3 “PLL
Frequency Multiplier” for details.
5: RA6/RA7 and their associated latch and direction bits are configured as port pins only when the internal oscillator is selected as the default
clock source (FOSC2 Configuration bit = 0); otherwise, they are disabled and these bits read as ‘0’.