PIC16F87_05 Datasheet, PDF (132/228 Pages) Microchip Technology – 18/20/28-Pin Enhanced Flash Microcontrollers with nanoWatt Technology

PIC16F87/88
REGISTER 15-1: CONFIG1: CONFIGURATION WORD 1 REGISTER (ADDRESS 2007h)
R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1
CP CCPMX DEBUG WRT1 WRT0 CPD LVP BOREN MCLRE FOSC2 PWRTEN WDTEN FOSC1 FOSC0
bit 13
bit 0
bit 13 CP: Flash Program Memory Code Protection bits
1 = Code protection off
0 = 0000h to 0FFFh code-protected (all protected)
bit 12 CCPMX: CCP1 Pin Selection bit
1 = CCP1 function on RB0
0 = CCP1 function on RB3
bit 11 DEBUG: In-Circuit Debugger Mode bit
1 = In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
0 = In-Circuit Debugger enabled, RB6 and RB7 are dedicated to the debugger
bit 10-9 WRT<1:0>: Flash Program Memory Write Enable bits
11 = Write protection off
10 = 0000h to 00FFh write-protected, 0100h to 0FFFh may be modified by EECON control
01 = 0000h to 07FFh write-protected, 0800h to 0FFFh may be modified by EECON control
00 = 0000h to 0FFFh write-protected
bit 8 CPD: Data EE Memory Code Protection bit
1 = Code protection off
0 = Data EE memory code-protected
bit 7 LVP: Low-Voltage Programming Enable bit
1 = RB3/PGM pin has PGM function, Low-Voltage Programming enabled
0 = RB3 is digital I/O, HV on MCLR must be used for programming
bit 6 BOREN: Brown-out Reset Enable bit
1 = BOR enabled
0 = BOR disabled
bit 5 MCLRE: RA5/MCLR/VPP Pin Function Select bit
1 = RA5/MCLR/VPP pin function is MCLR
0 = RA5/MCLR/VPP pin function is digital I/O, MCLR internally tied to VDD
bit 3 PWRTEN: Power-up Timer Enable bit
1 = PWRT disabled
0 = PWRT enabled
bit 2 WDTEN: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
bit 4, 1-0 FOSC<2:0>: Oscillator Selection bits
111 = EXTRC oscillator; CLKO function on RA6/OSC2/CLKO
110 = EXTRC oscillator; port I/O function on RA6/OSC2/CLKO
101 = INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
100 = INTRC oscillator; port I/O function on both RA6/OSC2/CLKO pin and RA7/OSC1/CLKI pin
011 = ECIO; port I/O function on RA6/OSC2/CLKO
010 = HS oscillator
001 = XT oscillator
000 = LP oscillator
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
DS30487C-page 130
 2005 Microchip Technology Inc.