PIC16F870/871
CLRW ......................................................................108
CLRWDT ..................................................................108
COMF ......................................................................109
DECF .......................................................................109
DECFSZ ...................................................................109
GOTO ......................................................................109
INCF .........................................................................109
INCFSZ ....................................................................109
IORLW .....................................................................110
IORWF .....................................................................110
MOVF .......................................................................110
MOVLW ...................................................................110
MOVWF ...................................................................110
NOP .........................................................................110
RETFIE ....................................................................111
RETLW ....................................................................111
RETURN ..................................................................111
RLF ..........................................................................111
RRF ..........................................................................111
SLEEP .....................................................................111
SUBLW ....................................................................112
SUBWF ....................................................................112
SWAPF ....................................................................112
XORLW ....................................................................112
XORWF ....................................................................112
Summary Table ........................................................106
INTCON .............................................................................15
INTCON Register ...............................................................18
GIE Bit ........................................................................18
INTE Bit ......................................................................18
INTF Bit ......................................................................18
PEIE Bit ......................................................................18
RBIE Bit .....................................................................18
RBIF Bit ................................................................18, 29
T0IE Bit ......................................................................18
T0IF Bit ......................................................................18
Internal Sampling Switch (Rss) Impedence .......................82
Interrupt Sources .......................................................... 89, 99
Block Diagram ............................................................99
Interrupt on Change (RB7:RB4 ) ................................29
RB0/INT Pin, External ...................................... 7, 8, 100
TMR0 Overflow ........................................................100
USART Receive/Transmit Complete .........................63
Interrupts, Context Saving During ....................................100
Interrupts, Enable Bits
M
Master Clear (MCLR) ....................................................... 7, 8
MCLR Reset, Normal Operation .................... 93, 95, 96
MCLR Reset, SLEEP ..................................... 93, 95, 96
Memory Organization
Data Memory ............................................................. 11
Program Memory ....................................................... 11
MPLAB Integrated Development Environment Software . 113
O
OPCODE Field Descriptions ............................................ 105
OPTION ............................................................................. 15
OPTION_REG Register ..................................................... 17
INTEDG Bit ................................................................ 17
PS2:PS0 Bits ............................................................. 17
PSA Bit ...................................................................... 17
RBPU Bit ................................................................... 17
T0CS Bit .................................................................... 17
T0SE Bit .................................................................... 17
OSC1/CLKIN Pin ............................................................. 7, 8
OSC2/CLKOUT Pin ......................................................... 7, 8
Oscillator Configuration ............................................... 89, 91
HS ........................................................................ 91, 95
LP ........................................................................ 91, 95
RC ................................................................. 91, 92, 95
XT ........................................................................ 91, 95
Oscillator, WDT ................................................................ 101
Output of TMR2 ................................................................. 55
P
Packaging ........................................................................ 137
Paging, Program Memory ............................................ 11, 24
Parallel Slave Port (PSP) ......................................... 9, 33, 36
Block Diagram ........................................................... 36
RE0/RD/AN5 Pin ............................................. 9, 35, 36
RE1/WR/AN6 Pin ............................................. 9, 35, 36
RE2/CS/AN7 Pin .............................................. 9, 35, 36
Read Waveforms ....................................................... 37
Select (PSPMODE Bit) .................................. 33, 34, 36
Write Waveforms ....................................................... 37
PCL Register ................................................... 13, 14, 15, 24
PCLATH Register ............................................ 13, 14, 15, 24
PCON Register ...................................................... 15, 23, 94
BOR Bit ...................................................................... 23
POR Bit ...................................................................... 23
PIC16F876 Pinout Description ............................................ 7
PICDEM-1 Low-Cost PICmicro Demo Board .................. 115
PICDEM-2 Low-Cost PIC16CXX Demo Board ................ 115
PICDEM-3 Low-Cost PIC16CXXX Demo Board ............. 115
PICSTART Plus Entry Level Development System ...... 115
PIE1 Register ............................................................... 15, 19
PIE2 Register ............................................................... 15, 21
Pinout Descriptions
Global Interrupt Enable (GIE Bit) ......................... 18, 99
Interrupt on Change (RB7:RB4) Enable
(RBIE Bit) ........................................................... 18, 100
Peripheral Interrupt Enable (PEIE Bit) .......................18
RB0/INT Enable (INTE Bit) ........................................18
TMR0 Overflow Enable (T0IE Bit) ..............................18
Interrupts, Flag Bits
Interrupt on Change (RB7:RB4) Flag
(RBIF Bit) ..................................................... 18, 29, 100
RB0/INT Flag (INTF Bit) .............................................18
TMR0 Overflow Flag (T0IF Bit) .......................... 18, 100
PIC16F870 .................................................................. 7
PIC16F871 .................................................................. 8
PIR1 Register .................................................................... 20
PIR2 Register .................................................................... 22
POP ................................................................................... 24
PORTA ...................................................................... 7, 8, 15
Analog Port Pins ...................................................... 7, 8
Initialization ................................................................ 27
PORTA Register ........................................................ 27
RA3,RA0 and RA5 Port Pins ..................................... 27
RA4/T0CKI Pin .................................................. 7, 8, 27
RA5/AN4 Pin ........................................................... 7, 8
TRISA Register .......................................................... 27
K
KeeLoq Evaluation and Programming Tools .................116
L
Loading of PC ....................................................................24
DS30569A-page 146
Preliminary
1999 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
