PIC18LF4331 datasheet(123/392 Pages) MICROCHIP

123 / 392 page

 2010 Microchip Technology Inc.

DS39616D-page 123

PIC18F2331/2431/4331/4431

TABLE 11-7:

PORTD I/O SUMMARY

TABLE 11-8:

SUMMARY OF REGISTERS ASSOCIATED WITH PORTD

Function

TRIS

Setting

I/O

Type

Description

RD0/T0CKI/

T5CKI

RD0

DIG

LATD<0> data output.

PORTD<0> data input.

T0CKI(1)

Timer0 alternate clock input.

T5CKI(1)

Timer5 alternate clock input.

RD1/SDO

RD1

DIG

LATD<1> data output.

PORTD<1> data input.

SDO(1)

DIG

SPI data out; takes priority over port data.

RD2/SDI/SDA

RD2

DIG

LATD<2> data output.

PORTD<2> data input.

SDI(1)

SPI data input (SSP module).

SDA(1)

ODIG

I2C™ data output (SSP module); takes priority over port data.

II2CI2C data input (SSP module).

RD3/SCK/SCL

RD3

DIG

LATD<3> data output.

PORTD<3> data input.

SCK(1)

DIG

SPI clock output (SSP module); takes priority over port data.

SPI clock input (SSP module).

SCL(1)

ODIG

I2C clock output (SSP module); takes priority over port data.

II2CI2C clock input (SSP module); input type depends on module setting.

RD4/FLTA

RD4

DIG

LATD<4> data output.

PORTD<4> data input.

FLTA(2)

Fault Interrupt Input Pin A.

RD5/PWM4

RD5

DIG

LATD<5> data output.

PORTD<5> data input.

PWM4(3)

DIG

PWM Output 4; takes priority over port data.

RD6/PWM6

RD6

DIG

LATD<6> data output.

PORTD<6> data input.

PWM6

DIG

PWM Output 6; takes priority over port data.

RD7/PWM7

RD7

DIG

LATD<7> data output.

PORTD<7> data input.

PWM7

DIG

PWM Output 7; takes priority over port data.

Legend:

DIG = Digital level output; TTL = TTL input buffer; ST = Schmitt Trigger input buffer;

x = Don’t care (TRIS bit does not affect port direction or is overridden for this option).

Note

RC3 is the alternate pin for T0CKI/T5CKI; RC4 is the alternate pin for SDI/SDA; RC5 is the alternate pin for SCK/SCL;

RC7 is the alternate pin for SDO.

RC1 is the alternate pin for FLTA.

RB5 is the alternate pin for PWM4.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reset Values

on Page:

PORTD

RD7

RD6

RD5

RD4

RD3

RD2

RD1

RD0

LATD

LATD Data Output Register

TRISD

PORTD Data Direction Register

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