Datasheet
2010 Microchip Technology Inc. DS41302D-page 45
PIC12F609/615/617/12HV609/615
REGISTER 5-3: ANSEL: ANALOG SELECT REGISTER (PIC12F609/HV609)
U-0 U-0 U-0 U-0 R/W-1 U-0 R/W-1 R/W-1
— — — —ANS3— ANS1 ANS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-4 Unimplemented: Read as ‘0’
bit 3 ANS3: Analog Select Between Analog or Digital Function on Pin GP4
1 = Analog input. Pin is assigned as analog input
(1)
.
0 = Digital I/O. Pin is assigned to port or special function.
bit 2 Unimplemented: Read as ‘0’
bit 1 ANS1: Analog Select Between Analog or Digital Function on Pin GP1
1 = Analog input. Pin is assigned as analog input.
(1)
0 = Digital I/O. Pin is assigned to port or special function.
bit 0 ANS0: Analog Select Between Analog or Digital Function on Pin GP0
0 = Digital I/O. Pin is assigned to port or special function.
1 = Analog input. Pin is assigned as analog input.
(1)
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 TRIS bit must be set to Input mode in order to allow external control of
the voltage on the pin.
REGISTER 5-4: ANSEL: ANALOG SELECT REGISTER (PIC12F615/617/HV615)
U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— ADCS2 ADCS1 ADCS0 ANS3 ANS2 ANS1 ANS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7 Unimplemented: Read as ‘0’
bit 6-4 ADCS<2:0>: A/D Conversion Clock Select bits
000 = F
OSC/2
001 = F
OSC/8
010 = F
OSC/32
x11 = F
RC (clock derived from a dedicated internal oscillator = 500 kHz max)
100 = F
OSC/4
101 = F
OSC/16
110 = F
OSC/64
bit 3-0 ANS<3:0>: Analog Select Between Analog or Digital Function on Pins GP4, GP2, GP1, GP0, 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 TRIS bit must be set to Input mode in order to allow external control of
the voltage on the pin.