PIC12F683
REGISTER 9-2:
ANSEL – ANALOG SELECT REGISTER (ADDRESS: 9Fh)
U-0
—
R/W-0
R/W-0
R/W-0
R/W-1
ANS3
R/W-1
ANS2
R/W-1
ANS1
R/W-1
ANS0
ADCS2
ADCS1
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/16
110= FOSC/64
bit 3-0
ANS<3:0>: Analog Select bits
Analog select between analog or digital function on pins ANS<3:0>, respectively.
1= Analog input. Pin is assigned as analog input(1)
.
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 if available. 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
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
- n = Value at POR
2004 Microchip Technology Inc.
Preliminary
DS41211B-page 59
MICROCHIP [ MICROCHIP ]
