
2005 Microchip Technology Inc.
Preliminary
DS41265A-page 153
PIC16F946
REGISTER 12-3:
ADCON1 – A/D CONTROL REGISTER 1 (ADDRESS: 9Fh)
U-0
R/W-0
U-0
—
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
Unimplemented: Read as ‘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