PIC18FXX20 Datasheet, PDF (216/366 Pages) Microchip Technology – 64/80-Pin High Performance 1 Mbit Enhanced FLASH Microcontrollers with A/D

PIC18FXX20
REGISTER 19-2: ADCON1 REGISTER
U-0
—
bit 7
U-0
R/W-0
—
VCFG1
R/W-0
VCFG0
R/W-0
PCFG3
R/W-0
PCFG2
R/W-0
PCFG1
R/W-0
PCFG0
bit 0
bit 7-6
bit 5-4
Unimplemented: Read as '0'
VCFG1:VCFG0: Voltage Reference Configuration bits:
VCFG1
VCFG0
00
01
10
11
A/D VREF+
AVDD
External VREF+
AVDD
External VREF+
A/D VREF-
AVSS
AVSS
External VREF-
External VREF-
bit 3-0
PCFG3:PCFG0: A/D Port Configuration Control bits:
PCFG3
PCFG0
0000 A A A A A A A A A A A A A A A A
0001 D D A A A A A A A A A A A A A A
0010 D D D A A A A A A A A A A A A A
0011 D D D D A A A A A A A A A A A A
0100 D D D D D A A A A A A A A A A A
0101 D D D D D D A A A A A A A A A A
0110 D D D D D D D A A A A A A A A A
0111 D D D D D D D D A A A A A A A A
1000 D D D D D D D D D A A A A A A A
1001 D D D D D D D D D D A A A A A A
1010 D D D D D D D D D D D A A A A A
1011 D D D D D D D D D D D D A A A A
1100 D D D D D D D D D D D D D A A A
1101 D D D D D D D D D D D D D D A A
1110 D D D D D D D D D D D D D D D A
1111 D D D D D D D D D D D D D D D D
A = Analog input D = Digital I/O
Note: Shaded cells indicate A/D channels available only on PIC18F8X20 devices.
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
DS39609A-page 214
Advance Information
 2003 Microchip Technology Inc.