Datasheet

 2010-2012 Microchip Technology Inc. DS39977F-page 359
PIC18F66K80 FAMILY
REGISTER 23-2: ADCON1: A/D CONTROL REGISTER 1
R/W-0 R/W-0 R/W-0 R/W-0 R/W-x R/W-x R/W-x R/W-x
TRIGSEL1 TRIGSEL0 VCFG1 VCFG0 VNCFG CHSN2 CHSN1 CHSN0
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
TRIGSEL<1:0>: Special Trigger Select bits
11 = Selects the special trigger from the CCP2
10 = Selects the special trigger from the Timer1
01 = Selects the special trigger from the CTMU
00 = Selects the special trigger from the ECCP1
bit 5-4
VCFG<1:0>: A/D VREF+ Configuration bits
11 = Internal VREF+ (4.1V)
10 = Internal VREF+ (2.0V)
01 = External VREF+
00 = AVDD
bit 3 VNCFG: A/D VREF- Configuration bit
1 =External VREF
0 =AVSS
bit 2-0 CHSN<2:0>: Analog Negative Channel Select bits
111 = Channel 07 (AN6)
110 = Channel 06 (AN5)
101 = Channel 05 (AN4)
100 = Channel 04 (AN3)
011 = Channel 03 (AN2)
010 = Channel 02 (AN1)
001 = Channel 01 (AN0)
000 = Channel 00 (AVSS)