PIC16F631/677/685/687/689/690
TABLE 4-1:
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Value on
all other
Resets
Value on
POR, BOR
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ADCON0
ADFM
VCFG
CHS3
CHS2
CHS1
CHS0
ADON
0000 0000
0000 0000
GO/DONE
ANS1
ANSEL
ANS7
C1ON
GIE
ANS6
C1OUT
PEIE
ANS5
C1OE
T0IE
ANS4
C1POL
INTE
ANS3
—
ANS2
C1R
ANS0
C1CH0
RABIF
IOCA0
PS0
1111 1111
0000 -000
0000 000x
--00 0000
1111 1111
--xx xxxx
0000 0000
0000 0000
--11 1111
--11 -111
1111 1111
0000 -000
0000 000x
--00 0000
1111 1111
--uu uuuu
0000 0000
uuuu uuuu
--11 1111
--11 -111
CM1CON0
INTCON
IOCA
C1CH1
INTF
RABIE
IOCA3
PSA
T0IF
—
—
IOCA5
T0CS
RA5
IOCA4
T0SE
RA4
IOCA2
PS2
IOCA1
PS1
OPTION_REG RABPU
INTEDG
—
PORTA
SSPCON
T1CON
TRISA
—
WCOL
T1GINV
—
RA3
RA2
RA1
RA0
SSPOV
SSPEN
CKP
SSPM3
SSPM2
SSPM1
SSPM0
TMR1GE T1CKPS1 T1CKPS0 T1OSCEN T1SYNC
TMR1CS TMR1ON
—
—
TRISA5
WPUA5
TRISA4
WPUA4
TRISA3
—
TRISA2
WPUA2
TRISA1
WPUA1
TRISA0
WPUA0
WPUA
—
Legend:
x= unknown, u= unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTA.
DS41262D-page 68
© 2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
