Datasheet

PIC18F87J10 FAMILY
DS39663F-page 262 © 2009 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 VCFG1: Voltage Reference Configuration bit (V
REF- source)
1 = VREF- (AN2)
0 = AV
SS
bit 4 VCFG0: Voltage Reference Configuration bit (VREF+ source)
1 = V
REF+ (AN3)
0 = AV
DD
bit 3-0 PCFG<3:0>: A/D Port Configuration Control bits:
Note 1: AN12 through AN15 are available only in 80-pin devices.
A = Analog input D = Digital I/O
PCFG<3:0>
AN15
(1)
AN14
(1)
AN13
(1)
AN12
(1)
AN11
AN10
AN9 AN8 AN7 AN6 AN4 AN3 AN2 AN1 AN0
0000
AAAAAAAAAAAAAAA
0001
DDAAAAAAAAAAAAA
0010
DDDAAAAAAAAAAAA
0011
DDDDAAAAAAAAAAA
0100
DDDDDAAAAAAAAAA
0101
DDDDDDAAAAAAAAA
0110
DDDDDDDAAAAAAAA
0111
DDDDDDDDAAAAAAA
1000
DDDDDDDDDAAAAAA
1001
DDDDDDDDDDAAAAA
1010
DDDDDDDDDDAAAAA
1011
DDDDDDDDDDDAAAA
1100
DDDDDDDDDDDDAAA
1101
DDDDDDDDDDDDDAA
1110
DDDDDDDDDDDDDDA
1111
DDDDDDDDDDDDDDD