PIC16F818-ESLASHML datasheet(92/176 Pages) MICROCHIP

92 / 176 page

PIC16F818/819

DS39598E-page 90

 2004 Microchip Technology Inc.

CONFIGURATION WORD (ADDRESS 2007h)(1)

R/P-1

R/P-1 R/P-1 R/P-1

R/P-1

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 bit

= Code protection off

= All memory locations code-protected

bit 12

CCPMX: CCP1 Pin Selection bit

= CCP1 function on RB2

= CCP1 function on RB3

bit 11

DEBUG: In-Circuit Debugger Mode bit

= In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins

= In-Circuit Debugger enabled, RB6 and RB7 are dedicated to the debugger

bit 10-9

WRT1:WRT0: Flash Program Memory Write Enable bits

For PIC16F818:

= Write protection off

= 000h to 01FF write-protected, 0200 to 03FF may be modified by EECON control

= 000h to 03FF write-protected

For PIC16F819:

= Write protection off

= 0000h to 01FFh write-protected, 0200h to 07FFh may be modified by EECON control

= 0000h to 03FFh write-protected, 0400h to 07FFh may be modified by EECON control

= 0000h to 05FFh write-protected, 0600h to 07FFh may be modified by EECON control

bit 8

CPD: Data EE Memory Code Protection bit

= Code protection off

= Data EE memory locations code-protected

bit 7

LVP: Low-Voltage Programming Enable bit

= RB3/PGM pin has PGM function, Low-Voltage Programming enabled

= RB3/PGM pin has digital I/O function, HV on MCLR must be used for programming

bit 6

BOREN: Brown-out Reset Enable bit

= BOR enabled

= BOR disabled

bit 5

MCLRE: RA5/MCLR/VPP Pin Function Select bit

= RA5/MCLR/VPP pin function is MCLR

= RA5/MCLR/VPP pin function is digital I/O, MCLR internally tied to VDD

bit 3

PWRTEN: Power-up Timer Enable bit

= PWRT disabled

= PWRT enabled

bit 2

WDTEN: Watchdog Timer Enable bit

= WDT enabled

= WDT disabled

bit 4, 1-0

FOSC2:FOSC0: Oscillator Selection bits

111

= EXTRC oscillator; CLKO function on RA6/OSC2/CLKO pin

110

= EXTRC oscillator; port I/O function on RA6/OSC2/CLKO pin

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

= EXTCLK; port I/O function on RA6/OSC2/CLKO pin

010

= HS oscillator

001

= XT oscillator

000

= LP oscillator

Note 1: The erased (unprogrammed) value of the Configuration Word is 3FFFh.

Legend:

R = Readable bit

P = Programmable bit

U = Unimplemented bit, read as ‘1’

-n = Value when device is unprogrammed

u = Unchanged from programmed state

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