PIC16F913 datasheet(148/272 Pages) MICROCHIP

148 / 272 page

PIC16F917/916/914/913

DS41250E-page 146

Preliminary

ANSEL – ANALOG SELECT REGISTER (ADDRESS: 91h)

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

R/W-1

ANS7(2)

ANS6(2)

ANS5(2)

ANS4

ANS3

ANS2

ANS1

ANS0

bit 7

bit 0

bit 7-0:

ANS<7:0>: Analog Select bits(2)

Select between analog or digital function on pins AN<7:0>, respectively.

= Analog input. Pin is assigned as analog input.(1)

= Digital I/O. Pin is assigned to port or special function.

Note 1: Setting a pin to an analog input automatically disables the digital input circuitry,

weak pull-ups, and interrupt-on-change if available. The corresponding TRIS bit

must be set to Input mode in order to allow external control of the voltage on the pin.

2: ANS<7:5> on PIC16F914/917 only; forced ‘0’ on PIC16F913/916.

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

R/W-0

ADFM

VCFG1

VCFG0

CHS2

CHS1

CHS0

GO/DONE

ADON

bit 7

bit 0

bit 7

ADFM: A/D Result Formed Select bit

= Right justified

= Left justified

bit 6

VCFG1: Voltage Reference bit

= VREF- pin

= VSS

bit 5

VCFG0: Voltage Reference bit

= VREF+ pin

= VDD

bit 4-2

CHS<2:0>: 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

= 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.

= A/D conversion completed/not in progress

bit 0

ADON: A/D Conversion Status bit

= A/D converter module is operating

= 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

PIC16F913 Datasheet(PDF) 148 Page - Microchip Technology

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