Datasheet

PIC16C745/765

DS41124D-page 92 Preliminary  1999-2013 Microchip Technology Inc.

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0

ADCS1 ADCS0 CHS2 CHS1 CHS0 GO/DONE — ADON R = Readable bit

W = Writable bit

U = Unimplemented bit,

read as ‘0’

- n = Value at POR Reset

bit7 bit0

bit 7-6: ADCS<1:0>: A/D Conversion Clock Select bits

00 = F

INT/2

01 = F

INT/8

10 = F

INT/32

(2)

11 = FRC (clock derived from dedicated internal oscillator)

(2)

bit 5-3: CHS<2:0>: Analog Channel Select bits

000 = channel 0, (RA0/AN0)

001 = channel 1, (RA1/AN1)

010 = channel 2, (RA2/AN2)

011 = channel 3, (RA3/AN3)

100 = channel 4, (RA5/AN4)

101 = channel 5, (RE0/AN5)

(1)

110 = channel 6, (RE1/AN6)

(1)

111 = channel 7, (RE2/AN7)

(1)

bit 2: GO/DONE: A/D Conversion Status bit

If ADON = 1

1 = A/D conversion in progress (setting this bit starts the A/D conversion)

0 = A/D conversion not in progress (This bit is automatically cleared by hardware when the A/D

conversion is complete)

bit 1: Unimplemented: Read as '0'

bit 0: ADON: A/D On bit

1 = A/D converter module is operating

0 = A/D converter module is shutoff and consumes no operating current

Note 1: A/D channels 5, 6 and 7 are implemented on the PIC16C765 only.

2: Choose F

INT/32 or FRC to maintain 8-bit A/D accuracy at 24 MHz.