PIC16F72X/PIC16LF72X
REGISTER 9-2:
ADCON1: A/D CONTROL REGISTER 1
U-0
—
R/W-0
ADCS2
R/W-0
ADCS1
R/W-0
ADCS0
U-0
—
U-0
—
R/W-0
R/W-0
ADREF1
ADREF0
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘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=FOSC/2
001=FOSC/8
010=FOSC/32
011=FRC (clock supplied from a dedicated RC oscillator)
100=FOSC/4
101=FOSC/16
110=FOSC/64
111=FRC (clock supplied from a dedicated RC oscillator)
bit 3-2
bit 1-0
Unimplemented: Read as ‘0’
ADREF<1:0>: Voltage Reference Configuration bits
0x= VREF is connected to VDD
10= VREF is connected to external VREF (RA3/AN3)
11= VREF is connected to internal Fixed Voltage Reference
REGISTER 9-3:
R/W-x
ADRES: ADC RESULT REGISTER
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
ADRES7
bit 7
ADRES6
ADRES5
ADRES4
ADRES3
ADRES2
ADRES1
ADRES0
bit 0
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
bit 7-0
ADRES<7:0>: ADC Result Register bits
8-bit conversion result.
© 2009 Microchip Technology Inc.
DS41341E-page 105
MICROCHIP [ MICROCHIP ]
