Datasheet

PIC16F631/677/685/687/689/690
DS41262E-page 68 © 2008 Microchip Technology Inc.
TABLE 4-1: SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value on
POR, BOR
Value on
all other
Resets
ADCON0
ADFM VCFG CHS3 CHS2 CHS1 CHS0
GO/DONE
ADON 0000 0000 0000 0000
ANSEL
ANS7 ANS6 ANS5 ANS4 ANS3 ANS2 ANS1 ANS0 1111 1111 1111 1111
CM1CON0
C1ON C1OUT C1OE C1POL — C1R C1CH1 C1CH0 0000 -000 0000 -000
INTCON GIE
PEIE T0IE INTE RABIE T0IF INTF RABIF 0000 000x 0000 000x
IOCA
— — IOCA5 IOCA4 IOCA3 IOCA2 IOCA1 IOCA0 --00 0000 --00 0000
OPTION_REG
RABPU INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111
PORTA
— — RA5 RA4 RA3 RA2 RA1 RA0 --xx xxxx --uu uuuu
SSPCON
WCOL SSPOV SSPEN CKP SSPM3 SSPM2 SSPM1 SSPM0 0000 0000 0000 0000
T1CON
T1GINV TMR1GE T1CKPS1 T1CKPS0 T1OSCEN T1SYNC TMR1CS TMR1ON 0000 0000 uuuu uuuu
TRISA
— — TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 --11 1111 --11 1111
WPUA
— — WPUA5 WPUA4 — WPUA2 WPUA1 WPUA0 --11 -111 --11 -111
Legend: x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTA.