Datasheet

ManualsBrandsMicrochip ManualsEmbedded Processors & ControllersMicrocontroller 8 Bit DIL-18

PIC16F84A

DS35007B-page 80  2001 Microchip Technology Inc.

XORWF.......................................................................42

Summary Table...........................................................36

INT Interrupt (RB0/INT).......................................................29

INTCON Register....................................... 7

, 10, 20, 25, 29

EEIE Bit.......................................................................29

GIE Bit.................................................................. 10

, 29

INTE Bit................................................................ 10

, 29

INTF Bit................................................................ 10

, 29

PEIE Bit.......................................................................10

RBIE Bit ............................................................... 10

, 29

RBIF Bit..........................................................10

, 17, 29

T0IE Bit ................................................................ 10

, 29

T0IF Bit ..........................................................10

, 20, 29

Interrupt Sources.......................................................... 21

, 29

Block Diagram.............................................................29

Data EEPROM Write Complete ........................... 29

, 32

Interrupt-on-Change (RB7:RB4) ...............4

, 17, 29, 32

RB0/INT Pin, External...............................4

, 18, 29, 32

TMR0 Overflow .................................................... 20

, 29

Interrupts, Context Saving During.......................................30

Interrupts, Enable Bits

Data EEPROM Write Complete Enable

(EEIE Bit) ............................................................29

Global Interrupt Enable (GIE Bit) ................................10

Interrupt-on-Change (RB7:RB4) Enable

(RBIE Bit)............................................................10

Peripheral Interrupt Enable (PEIE Bit) ........................10

RB0/INT Enable (INTE Bit) .........................................10

TMR0 Overflow Enable (T0IE Bit)...............................10

Interrupts, Flag Bits.............................................................29

Data EEPROM Write Complete Flag

(EEIF Bit) ............................................................29

Interrupt-on-Change (RB7:RB4) Flag

(RBIF Bit) ............................................................10

RB0/INT Flag (INTF Bit)..............................................10

TMR0 Overflow Flag (T0IF Bit) ...................................10

IRP bit ...................................................................................8

KEELOQ Evaluation and Programming Tools ......................46

Master Clear (MCLR)

MCLR

Pin......................................................................4

MCLR

Reset, Normal Operation .................................24

MCLR

Reset, SLEEP........................................... 24, 32

Memory Organization............................................................5

Data EEPROM Memory.............................................. 13

Data Memory ................................................................6

Program Memory ..........................................................5

Migration from Baseline to Mid-Range Devices..................78

MPLAB C17 and MPLAB C18 C Compilers........................43

MPLAB ICD In-Circuit Debugger.........................................45

MPLAB ICE High Performance Universal In-Circuit

Emulator with MPLAB IDE..........................................44

MPLAB Integrated Development Environment

Software......................................................................43

MPLINK Object Linker/MPLIB Object Librarian ..................44

OPCODE Field Descriptions...............................................35

OPTION Register..................................................................9

INTEDG Bit ...................................................................9

PS2:PS0 Bits ................................................................9

PSA Bit..........................................................................9

RBPU

Bit.......................................................................9

T0CS Bit ....................................................................... 9

T0SE Bit ....................................................................... 9

OPTION_REG Register.................................... 7

, 18, 20, 25

INTEDG Bit................................................................. 29

PS2:PS0 Bits.............................................................. 19

PSA Bit ....................................................................... 19

OSC1 Pin.............................................................................. 4

OSC2 Pin.............................................................................. 4

Oscillator Configuration ................................................21

, 22

Block Diagram ......................................................22

, 23

Capacitor Selection for Ceramic Resonators.............. 22

Capacitor Selection for Crystal Oscillator ................... 23

Crystal Oscillator/Ceramic Resonators....................... 22

HS.........................................................................22

, 28

LP .........................................................................22

, 28

Oscillator Types.......................................................... 22

RC .................................................................22

, 23, 28

XT.........................................................................22

, 28

Packaging Information........................................................ 71

Marking....................................................................... 71

Bit.................................................................................... 8

PICDEM 1 Low Cost PICmicro

Demonstration Board.................................................. 45

PICDEM 17 Demonstration Board...................................... 46

PICDEM 2 Low Cost PIC16CXX

Demonstration Board.................................................. 45

PICDEM 3 Low Cost PIC16CXXX

Demonstration Board.................................................. 46

PICSTART Plus Entry Level Development

Programmer................................................................ 45

Pinout Descriptions............................................................... 4

Pointer, FSR ....................................................................... 11

POR.

See

Power-on Reset

PORTA ...........................................................................4

, 15

Associated Registers.................................................. 16

Functions.................................................................... 16

Initializing.................................................................... 15

PORTA Register....................................... 7

, 15, 16, 25

RA3:RA0 Block Diagram ............................................ 15

RA4 Block Diagram .................................................... 15

RA4/T0CKI Pin ................................................4

, 15, 19

TRISA Register...................................7

, 15, 16, 20, 25

PORTB ...........................................................................4

, 17

Associated Registers.................................................. 18

Functions.................................................................... 18

Initializing.................................................................... 17

PORTB Register....................................... 7

, 17, 18, 25

Pull-up Enable Bit (RBPU

Bit)....................................... 9

RB0/INT Edge Select (INTEDG Bit) ............................. 9

RB0/INT Pin, External......................................4

, 18, 29

RB3:RB0 Block Diagram ............................................ 17

RB7:RB4 Block Diagram ............................................ 17

RB7:RB4 Interrupt-on-Change ........................4

, 17, 29

RB7:RB4 Interrupt-on-Change

Enable (RBIE Bit) ............................................... 10

RB7:RB4 Interrupt-on-Change

Flag (RBIF Bit)..............................................10

, 17

TRISB Register......................................... 7

, 17, 18, 25

Postscaler, WDT

Assignment (PSA Bit) ................................................... 9

Rate Select (PS2:PS0 Bits) .......................................... 9

Postscaler.

See

Prescaler

Power-down (PD

) Bit.

See

Power-on Reset (POR)

Power-down Mode.

See

SLEEP