PIC12F1822-ISLASHMF datasheet(139/398 Pages) MICROCHIP

139 / 398 page

 2010 Microchip Technology Inc.

Preliminary

DS41413A-page 139

PIC12F/LF1822/16F/LF1823

15.2.7

ADC REGISTER DEFINITIONS

The following registers are used to control the

operation of the ADC.

ADCON0: A/D CONTROL REGISTER 0

U-0

R/W-0/0

—

CHS4

CHS3

CHS2

CHS1

CHS0

GO/DONE

ADON

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = Bit is unchanged

x = Bit is unknown

-n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set

‘0’ = Bit is cleared

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(1)

00101 =AN5(1)

00110 =AN6(1)

00111 =AN7(1)

01001 = Reserved. No channel connected.

•

11101 = Reserved. No channel connected.

11110 = DAC output(2)

11111 = FVR (Fixed Voltage Reference) Buffer 1 Output(3)

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:

PIC16F/LF1823 only. For PIC12F/LF1822 it is “Reserved. No channel connected”.

See Section 16.0 “Digital-to-Analog Converter (DAC) Module” for more information.

See Section 14.0 “Fixed Voltage Reference (FVR)” for more information.

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