Datasheet

PIC16C7X

DS30390E-page 130  1997 Microchip Technology Inc.

FIGURE 14-2: CONFIGURATION WORD FOR PIC16C72/73A/74A/76/77

CP1 CP0 CP1 CP0 CP1 CP0 — BODEN CP1 CP0 PWRTE WDTE FOSC1 FOSC0

Address 2007h

bit13 bit0

bit 13-8 CP1:CP0: Code Protection bits

(2)

5-4: 11 = Code protection off

10 = Upper half of program memory code protected

01 = Upper 3/4th of program memory code protected

00 = All memory is code protected

bit 7: Unimplemented: Read as '1'

bit 6: BODEN: Brown-out Reset Enable bit

(1)

1 = BOR enabled

0 = BOR disabled

bit 3: PWRTE: Power-up Timer Enable bit

(1)

1 = PWRT disabled

0 = PWRT enabled

bit 2: WDTE: 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: Enabling Brown-out Reset automatically enables Power-up Timer (PWRT) regardless of the value of bit PWRTE.

Ensure the Power-up Timer is enabled anytime Brown-out Reset is enabled.

2: All of the CP1:CP0 pairs have to be given the same value to enable the code protection scheme listed.