PIC12F629/675
REGISTER 7-2:
ANSEL — ANALOG SELECT REGISTER (ADDRESS: 9Fh)
U-0
—
R/W-0
R/W-0
R/W-0
R/W-±
ANS3
R/W-±
ANS2
R/W-±
ANS±
R/W-±
ANS0
ADCS2
ADCS±
ADCS0
bit 7
bit 0
bit 7
Unimplemented: Read as ‘0’.
bit 6-4
ADCS<2:0>: A/D Conversion Clock Select bits
000= FOSC/2
001= FOSC/8
010= FOSC/32
x11= FRC (clock derived from a dedicated internal oscillator = 500 kHz max)
100= FOSC/4
101= FOSC/±6
110= FOSC/64
bit 3-0
ANS3:ANS0: Analog Select bits
(Between analog or digital function on pins AN<3:0>, respectively.)
(1)
1= Analog input; pin is assigned as analog input
0= Digital I/O; pin is assigned to port or special function
Note 1: Setting a pin to an analog input automatically disables the digital input circuitry,
weak pull-ups, and interrupt-on-change. The corresponding TRISIO bit must be set
to Input mode in order to allow external control of the voltage on the pin.
Legend:
R = Readable bit
- n = Value at POR
W = Writable bit
’±’ = Bit is set
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared x = Bit is unknown
DS41190C-page 44
2003 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
