Information

PIC18F8722 FAMILY
DS39646C-page 272 © 2008 Microchip Technology Inc.
REGISTER 21-2: ADCON1: A/D CONTROL REGISTER 1
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0
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 7-6 Unimplemented: Read as ‘0’
bit 5-4 VCFG<1:0>: Voltage Reference Configuration bits
bit 3-0 PCFG<3:0>: A/D Port Configuration Control bits:
A/D VREF+ A/D VREF-
00 AV
DD AVSS
01 External VREF+AVSS
10 AVDD External VREF-
11 External V
REF+ External VREF-
A = Analog input D = Digital I/O
Note 1: AN15 through AN12 are available only on 80-pin devices.
PCFG<3:0>
AN15
(1)
AN14
(1)
AN13
(1)
AN12
(1)
AN11 AN10 AN9 AN8 AN7 AN6 AN5 AN4 AN3 AN2 AN1 AN0
0000
A A AAAAAAAAAAAAAA
0001
D DAAAAAAAAAAAAAA
0010
D DDAAAAAAAAAAAAA
0011
D DDDAAAAAAAAAAAA
0100
D DDDDAAAAAAAAAAA
0101
D DDDDDAAAAAAAAAA
0110
DDDDDDDAAAAAAAAA
0111
D D DDDDDD A A AAAAAA
1000
D D DDDDDDD A AAAAAA
1001
D D DDDDDDDD AAAAAA
1010
D D DDDDDDDDDAAAAA
1011
D D DDDDDDDDDDAAAA
1100
D D DDDDDDDDDDDAAA
1101
D D DDDDDDDDDDDDAA
1110
D D DDDDDDDDDDDDDA
1111
D D DDDDDDDDDDDDDD