Datasheet

© 2007 Microchip Technology Inc. Preliminary DS41208C-page 11
PIC16F57
3.0 CONFIGURATION WORD
The PIC16F57 has several Configuration bits. These
bits can be programmed (reads ‘0’), or left unchanged
(reads ‘1’), to select various device configurations.
REGISTER 3-1: CONFIGURATION WORD
— — — — — — — — CP WDTE FOSC1 FOSC0
bit 11 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 11-4 Unimplemented: Read as ‘0’
bit 3 CP
: Code Protection bit
1 = Code protection off
0 = Code protection on
bit 2 WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
bit 1-0 FOSC1:FOSC0: Oscillator Selection bits
00 = LP oscillator
01 = XT oscillator
10 = HS oscillator
11 = RC oscillator