
PIC16F870/871
1999 Microchip Technology Inc.
Preliminary
DS30569A-page 147
PORTA Register ................................................................13
PORTB .......................................................................7, 8, 15
PORTB Register ........................................................29
Pull-up Enable (RBPU Bit) .........................................17
RB0/INT Edge Select (INTEDG Bit) ...........................17
RB0/INT Pin, External ......................................7, 8, 100
RB3:RB0 Port Pins ....................................................29
RB7:RB4 Interrupt on Change .................................100
RB7:RB4 Interrupt on Change Enable
(RBIE Bit) ...........................................................18, 100
RB7:RB4 Interrupt on Change Flag
(RBIF Bit) .....................................................18, 29, 100
RB7:RB4 Port Pins ....................................................29
TRISB Register ..........................................................29
PORTB Register ................................................................13
PORTC ......................................................................7, 8, 15
Block Diagram ............................................................31
PORTC Register ........................................................31
RC0/T1OSO/T1CKI Pin ...........................................7, 8
RC1/T1OSI/CCP2 Pin ..............................................7, 8
RC2/CCP1 Pin .........................................................7, 8
RC3 Pin ....................................................................7, 8
RC4 Pin ....................................................................7, 8
RC5 Pin ....................................................................7, 8
RC6/TX/CK Pin ..................................................7, 8, 64
RC7/RX/DT Pin ............................................7, 8, 64, 65
TRISC Register ....................................................31, 63
PORTC Register ................................................................13
PORTD ....................................................................9, 15, 36
Block Diagram ............................................................33
Parallel Slave Port (PSP) Function ............................33
PORTD Register ........................................................33
TRISD Register ..........................................................33
PORTD Register ................................................................13
PORTE ...........................................................................9, 15
Analog Port Pins ..............................................9, 35, 36
Block Diagram ............................................................34
Input Buffer Full Status (IBF Bit) ................................34
Input Buffer Overflow (IBOV Bit) ................................34
Output Buffer Full Status (OBF Bit) ............................34
PORTE Register ........................................................34
PSP Mode Select (PSPMODE Bit) ................33, 34, 36
RE0/RD/AN5 Pin ..............................................9, 35, 36
RE1/WR/AN6 Pin .............................................9, 35, 36
RE2/CS/AN7 Pin ..............................................9, 35, 36
TRISE Register ..........................................................34
PORTE Register ................................................................13
Postscaler, WDT
Assignment (PSA Bit) ................................................17
Rate Select (PS2:PS0 Bits) .......................................17
Power-down Mode. SeeSLEEP
Power-on Reset (POR) ..............................89, 93, 94, 95, 96
Oscillator Start-up Timer (OST) ...........................89, 94
POR Status (POR Bit) ................................................23
Power Control (PCON) Register ................................94
Power-down (PD Bit) ...........................................16, 93
Power-up Timer (PWRT) .....................................89, 94
Time-out (TO Bit) .................................................16, 93
Time-out Sequence on Power-up ........................97, 98
PR2 ....................................................................................15
PR2 Register ................................................................14, 55
Prescaler, Timer0
Assignment (PSA Bit) ................................................17
Rate Select (PS2:PS0 Bits) .......................................17
PRO MATE
II Universal Programmer ...........................115
Product Identification System ..........................................193
Program Counter
Reset Conditions ....................................................... 95
Program Memory ............................................................... 11
Interrupt Vector .......................................................... 11
Paging ................................................................. 11, 24
Program Memory Map ............................................... 11
Reset Vector .............................................................. 11
Program Verification ........................................................ 103
Programming Pin (V
PP
) ................................................... 7, 8
Programming, Device Instructions ................................... 105
PUSH ................................................................................. 24
R
RAM. See Data Memory
RCREG .............................................................................. 15
RCSTA Register .......................................................... 15, 64
CREN Bit ................................................................... 64
FERR Bit .................................................................... 64
OERR Bit ................................................................... 64
RX9 Bit ...................................................................... 64
RX9D Bit .................................................................... 64
SPEN Bit .............................................................. 63, 64
SREN Bit ................................................................... 64
Register File ....................................................................... 11
Register File Map ............................................................... 12
Registers
FSR Summary ........................................................... 15
INDF Summary .......................................................... 15
INTCON Summary .................................................... 15
OPTION Summary .................................................... 15
PCL Summary ........................................................... 15
PCLATH Summary .................................................... 15
PORTB Summary ...................................................... 15
STATUS Summary .................................................... 15
TMR0 Summary ........................................................ 15
TRISB Summary ........................................................ 15
Reset ........................................................................... 89, 93
Block Diagram ........................................................... 93
Reset Conditions for All Registers ............................. 96
Reset Conditions for PCON Register ........................ 95
Reset Conditions for Program Counter ..................... 95
Reset Conditions for STATUS Register .................... 95
S
SEEVAL
Evaluation and Programming System ........... 116
SLEEP ................................................................. 89, 93, 102
Software Simulator (MPLAB-SIM) ................................... 114
SPBRG .............................................................................. 15
SPBRG Register ................................................................ 14
Special Features of the CPU ............................................. 89
Special Function Registers ................................................ 13
Special Function Register Summary ......................... 13
Speed, Operating ................................................................ 1
Stack .................................................................................. 24
Overflows ................................................................... 24
Underflow .................................................................. 24
STATUS Register ........................................................ 15, 16
C Bit ........................................................................... 16
DC Bit ........................................................................ 16
IRP Bit ....................................................................... 16
PD Bit .................................................................. 16, 93
RP1:RP0 Bits ............................................................. 16
TO Bit .................................................................. 16, 93
Z Bit ........................................................................... 16