PIC16LF877A-I Datasheet, PDF (146/234 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers

PIC16F87XA
REGISTER 14-1: CONFIGURATION WORD (ADDRESS 2007h)⁽¹⁾
R/P-1 U-0 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 U-0 U-0 R/P-1 R/P-1 R/P-1 R/P-1
CP — DEBUG WRT1 WRT0 CPD LVP BOREN —
bit 13
— PWRTEN WDTEN FOSC1 FOSC0
bit0
bit 13
bit 12
bit 11
bit 10-9
bit 8
bit 7
bit 6
bit 5-4
bit 3
bit 2
bit 1-0
CP: Flash Program Memory Code Protection bit
1 = Code protection off
0 = All program memory code-protected
Unimplemented: Read as ‘1’
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
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
CPD: Data EEPROM Memory Code Protection bit
1 = Data EEPROM code protection off
0 = Data EEPROM code-protected
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
BOREN: Brown-out Reset Enable bit
1 = BOR enabled
0 = BOR disabled
Unimplemented: Read as ‘1’
PWRTEN: Power-up Timer Enable bit
1 = PWRT disabled
0 = PWRT enabled
WDTEN: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
FOSC1:FOSC0: Oscillator Selection bits
11 = RC oscillator
10 = HS oscillator
01 = XT oscillator
00 = LP oscillator
Legend:
R = Readable bit
P = Programmable bit
- n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
Note 1: The erased (unprogrammed) value of the Configuration Word is 3FFFh.
DS39582B-page 144
 2003 Microchip Technology Inc.