PIC16F676-ESLASHST datasheet(47/132 Pages) MICROCHIP

47 / 132 page

 2010 Microchip Technology Inc.

DS40039F-page 47

PIC16F630/676

ADCON0 — A/D CONTROL REGISTER (ADDRESS: 1Fh)

ADCON1 — A/D CONTROL REGISTER 1 (ADRESS: 9Fh)

R/W-0

U-0

R/W-0

ADFM

VCFG

—

CHS2

CHS1

CHS0

GO/DONE

ADON

bit 7

bit 0

bit 7

ADFM: A/D Result Formed Select bit

1 = Right justified

0 = Left justified

bit 6

VCFG: Voltage Reference bit

1 = VREF pin

0 = VDD

bit 5

Unimplemented: Read as zero

bit 4-2

CHS2:CHS0: Analog Channel Select bits

000 = Channel 00 (AN0)

001 = Channel 01 (AN1)

010 = Channel 02 (AN2)

011 = Channel 03 (AN3)

100 = Channel 04 (AN4)

101 = Channel 05 (AN5)

110 = Channel 06 (AN6)

111 = Channel 07 (AN7)

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: A/D Conversion Status bit

1 = A/D converter module is operating

0 = A/D converter is shut-off and consumes no operating current

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

U-0

R/W-0

U-0

—

ADCS2

ADCS1

ADCS0

—

bit 7

bit 0

bit 7:

Unimplemented: Read as ‘0’

bit 6-4:

ADCS<2:0>: A/D Conversion Clock Select bits

000 =FOSC/2

001 =FOSC/8

010 =FOSC/32

x11 =FRC (clock derived from a dedicated internal oscillator = 500 kHz max)

100 =FOSC/4

101 =FOSC/16

110 =FOSC/64

bit 3-0:

Unimplemented: Read as ‘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

PIC16F676-E/ST Datasheet(PDF) 47 Page - Microchip Technology

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