Jake's Electronics | PIC16F87XA Configuration Word Generator

PIC16F873A/874A/876A/877A

DEBUG

WRT1

WRT0

CPD

LVP

BOREN

PWRTEN

WDTEN

FOSC1

FOSC0

bit 13

bit 0

bit 13:

CP: Flash Program Memory Code Protection bit
1 = Code protection off
0 = All program memory code-protected

bit 12:

Unimplemented: Read as '1'

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:

WRT1:WRT0 Flash Program Memory Write Enable bits
For PIC16F876A/877A:
   11 = Write protection off; all program memory may be written to by EECON control
   10 = 0000h to 00FFh write-protected; 0100h to 1FFFh may be written to by EECON control
   01 = 0000h to 07FFh write-protected; 0800h to 1FFFh may be written to by EECON control
   00 = 0000h to 0FFFh write-protected; 1000h to 1FFFh may be written to by EECON control
For PIC16F873A/874A:
   11 = Write protection off; all program memory may be written to by EECON control
   10 = 0000h to 00FFh write-protected; 0100h to 0FFFh may be written to by EECON control
   01 = 0000h to 03FFh write-protected; 0400h to 0FFFh may be written to by EECON control
   00 = 0000h to 07FFh write-protected; 0800h to 0FFFh may be written to by EECON control

bit 8:

CPD: Data EEPROM Memory Code Protection bit
1 = Data EEPROM code protection off
0 = Data EEPROM code-protected

bit 7:

LVP: Low-Voltage (Single-Supply) In-Circuit Serial 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 5-4:

Unimplemented: Read as '1'

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 1-0:

FOSC1:FOSC0: Oscillator Selection bits
11 = RC oscillator
10 = HS oscillator
01 = XT oscillator
00 = LP oscillator

Note: 1:

The erased (unprogrammed) value of the Configuration Word is 3FFFh.

Configuration Word:

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