Microchip Technology MCP1630DM-DDBS1 Scheda Tecnica
©
2007 Microchip Technology Inc.
DS41211D-page 33
PIC12F683
REGISTER 4-3:
ANSEL: ANALOG SELECT REGISTER
U-0
R/W-0
R/W-0
R/W-0
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 bits
Analog select between analog or digital function on pins AN<3:0>, respectively.
Analog select between analog or digital function on pins AN<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 TRIS bit must be set to Input mode in order to allow external control of the voltage on
the pin.
if available. The corresponding TRIS bit must be set to Input mode in order to allow external control of the voltage on
the pin.