Datasheet

PIC16C77X
DS30275B-page 118 Advance Information  1999-2013 Microchip Technology Inc.
FIGURE 11-2: ADCON1 REGISTER (ADDRESS 9Fh)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADFM VCFG2 VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0 R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR reset
bit7 bit 0
bit 7: ADFM: A/D Result Format Select bit
1 = Right justified
0 = Left justified
bit 6:4 VCFG2:VCFG0: Voltage reference configuration bits
bit 3:0 PCFG3:PCFG0: A/D Port Configuration bits
(1)
Note 1: Selection of an unimplemented channel produces a result of 0xFFFFFF.
A/D VREFHA/D VREFL
000 A
VDD AVSS
001 External VREF+ External VREF-
010 Internal VRH Internal VRL
011 External V
REF+AVSS
100 Internal VRH AVSS
101 AVDD External VREF-
110 A
VDD Internal VRL
111 Internal VRL A
VSS
AN9AN8AN7AN6AN5AN4AN3AN2AN1AN0
0000 AAAAAAAAAA
0001 AAAAAAAAAA
0010 AAAAAAAAAA
0011 AAAAAAAAAA
0100 AAAAAAAAAA
0101 AAAAAAAAAA
0110 DAAAAAAAAA
0111 DDAAAAAAAA
1000 DDDAAAAAAA
1001 DDDDAAAAAA
1010 DDDDDAAAAA
1011 DDDDDDAAAA
1100 DDDDDDDAAA
1101 DDDDDDDDAA
1110 DDDDDDDDDA
1111 DDDDDDDDDD
A = Analog input D= Digital I/O
774.book Page 118 Tuesday, January 29, 2013 12:02 PM