Datasheet

 2010-2013 Microchip Technology Inc. DS40001430E-page 79

PIC16(L)F720/721

9.2.7 ADC REGISTER DEFINITIONS

The following registers are used to control the

operation of the ADC.

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

— — CHS3 CHS2 CHS1 CHS0 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 7-6 Unimplemented: Read as ‘0’

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

0000 =AN0

0001 =AN1

0010 =AN2

0011 =AN3

0100 =AN4

0101 =AN5

0110 =AN6

0111 =AN7

1000 =AN8

1001 =AN9

1010 =AN10

1011 =AN11

1110 = Temperature Indicator

(1)

1111 = Fixed Voltage Reference (FVREF)

(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: See Section 11.0 “Temperature Indicator Module” for more information.

2: See Section 10.0 “Fixed Voltage Reference” for more information.