Datasheet

PIC18(L)F2X/4XK22
DS41412F-page 304  2010-2012 Microchip Technology Inc.
17.3 Register Definitions: ADC Control
Note: Analog pin control is determined by the
ANSELx registers (see Register 10-2)
REGISTER 17-1: ADCON0: A/D CONTROL REGISTER 0
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— CHS<4:0> GO/DONE ADON
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 Unimplemented: Read as ‘0’
bit 6-2 CHS<4:0>: Analog Channel Select bits
00000 = AN0
00001 = AN1
00010 = AN2
00011 = AN3
00100 = AN4
00101 = AN5
(1)
00110 = AN6
(1)
00111 = AN7
(1)
01000 = AN8
01001 = AN9
01010 = AN10
01011 = AN11
01100 = AN12
01101 = AN13
01110 = AN14
01111 = AN15
10000 = AN16
10001 = AN17
10010 = AN18
10011 = AN19
10100 = AN20
(1)
10101 = AN21
(1)
10110 = AN22
(1)
10111 = AN23
(1)
11000 = AN24
(1)
11001 = AN25
(1)
11010 = AN26
(1)
11011 = AN27
(1)
11100 = Reserved
11101 = CTMU
11110 = DAC
11111 = FVR BUF2 (1.024V/2.048V/2.096V Volt Fixed Voltage Reference)
(2)
bit 1 GO/DONE: A/D Conversion Status bit
1 = A/D conversion cycle in progress. Setting this bit starts an A/D conversion cycle.
This bit is automatically cleared by hardware when the A/D conversion has completed.
0 = A/D conversion completed/not in progress
bit 0 ADON: ADC Enable bit
1 = ADC is enabled
0 = ADC is disabled and consumes no operating current
Note 1: Available on PIC18(L)F4XK22 devices only.
2: Allow greater than 15 s acquisition time when measuring the Fixed Voltage Reference.