PIC18F23K22-ESLASHML datasheet(298/496 Pages) MICROCHIP

298 / 496 page

PIC18(L)F2X/4XK22

DS41412C-page 298

Preliminary

 2010 Microchip Technology Inc.

17.2.11

ADC REGISTER DEFINITIONS

The following registers are used to control the

operation of the ADC.

Note:

Analog pin control is determined by the

ANSELx registers (see Register 10-2)

ADCON0: A/D CONTROL REGISTER 0

U-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

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