PIC16F84A datasheet(82/90 Pages) MICROCHIP

82 / 90 page

PIC16F84A

DS35007C-page 82

 2001-2013 Microchip Technology Inc.

SUBWF ....................................................................... 41

SWAPF ....................................................................... 41

XORLW ....................................................................... 42

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

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

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

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

, 10, 18, 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

Internet Address.................................................................. 85

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

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

Microchip Internet Web Site ................................................ 85

Migration from Baseline to Mid-Range Devices .................. 80

MPLAB ASM30 Assembler, Linker, Librarian ..................... 44

MPLAB Integrated Development Environment Software .... 43

MPLAB PM3 Device Programmer....................................... 46

MPLAB REAL ICE In-Circuit Emulator System................... 45

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 ........................................................ 69

Marking ....................................................................... 69

PD bit .................................................................................... 8

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

Power-on Reset (POR).......................................... 21

, 24, 26

Oscillator Start-up Timer (OST) ............................21

, 26

PD Bit .................................................8

, 24, 28, 32, 33

Power-up Timer (PWRT) ......................................21

, 26

Time-out Sequence .................................................... 28

Time-out Sequence on Power-up .........................27

, 28

TO Bit .......................................... 8

, 24, 28, 30, 32, 33

Prescaler............................................................................. 19

Assignment (PSA Bit) ................................................. 19

Block Diagram ............................................................ 20

Rate Select (PS2:PS0 Bits) ........................................ 19

Switching Prescaler Assignment ................................ 20

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