PIC16F689T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F689T-I/SO

20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC16F631/677/685/687/689/690

REGISTER 4-3: ANSEL: ANALOG SELECT REGISTER

R/W-1

ANS7

bit 7

R/W-1

ANS6

R/W-1

ANS5

R/W-1

ANS4

R/W-1

ANS3

R/W-1

ANS2

R/W-1

ANS1

R/W-1

ANS0

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-0

ANS<7:0>: Analog Select bits

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

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

0 = 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.

REGISTER 4-4: ANSELH: ANALOG SELECT HIGH REGISTER(2)

U-0

—

bit 7

U-0

U-0

U-0

R/W-1

R/W-1

—

—

—

ANS11

ANS10

R/W-1

ANS9

R/W-1

ANS8

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-4

bit 3-0

Unimplemented: Read as ‘0’

ANS<11:8>: Analog Select bits

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

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

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

Note 1:

2:

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.

PIC16F677/PIC16F685/PIC16F687/PIC16F689/PIC16F690 only.

© 2008 Microchip Technology Inc.

DS41262E-page 61

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