PIC16F636T-I/SL(2005) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F636T-I/SL
(Rev.:2005)

8/14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC12F635/PIC16F636/639

4.3 PORTC

PORTC is a general purpose I/O port consisting of 6

bidirectional pins. The pins can be configured for either

digital I/O or analog input to comparator. For specific

information about individual functions, refer to the

appropriate section in this data sheet.

Note:

The CMCON0 (19h) register must be ini-

tialized to configure an analog channel as

a digital input. Pins configured as analog

inputs will read ‘0’.

EXAMPLE 4-3: INITIALIZING PORTC

BCF

BCF

CLRF

MOVLW

MOVWF

BSF

BCF

MOVLW

MOVWF

STATUS,RP0

STATUS,RP1

PORTC

07h

CMCON0

STATUS,RP0

STATUS,RP1

0Ch

TRISC

BCF

STATUS,RP0

BCF

STATUS,RP1

;Bank 0

;

;Init PORTC

;Set RC<4,1:0> to

;digital I/O

;Bank 1

;Set RC<3:2> as inputs

;and set RC<5:4,1:0>

;as outputs

;Bank 0

;

4.3.1 RC0/C2IN+

The RC0 pin is configurable to function as one of the

following:

• a general purpose I/O

• an analog input to the comparator

4.3.2

RC1/C2IN-

The RC1 pin is configurable to function as one of the

following:

• a general purpose I/O

• an analog input to the comparator

FIGURE 4-7:

Data Bus

BLOCK DIAGRAM OF RC0

AND RC1

WR

PORTC

DQ

CK Q

WR

TRISC

DQ

CK Q

RD

TRISC

RD

PORTC

VDD

I/O pin

VSS

Analog Input

Mode

To Comparators

4.3.3 RC2

The RC2 pin is configurable to function as a general

purpose I/O.

4.3.4 RC3

The RC3 pin is configurable to function as a general

purpose I/O.

4.3.5 RC5

The RC5 pin is configurable to function as a general

purpose I/O.

FIGURE 4-8:

BLOCK DIAGRAM OF

RC2, RC3 AND RC5

Data Bus

WR

PORTC

DQ

CK Q

WR

TRISC

DQ

CK Q

RD

TRISC

RD

PORTC

VDD

I/O pin

VSS

© 2005 Microchip Technology Inc.

Preliminary

DS41232B-page 49

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