PIC18F23K20-ESLASHML datasheet(126/456 Pages) MICROCHIP

126 / 456 page

PIC18F2XK20/4XK20

DS41303G-page 126

 2010 Microchip Technology Inc.

TABLE 10-4:

SUMMARY OF REGISTERS ASSOCIATED WITH PORTB

RB6/KBI2/PGC

RB6

DIG

LATB<6> data output.

TTL

PORTB<6> data input; Programmable weak pull-up.

KBI2

TTL

Interrupt-on-pin change.

PGC

Serial execution (ICSP) clock input for ICSP and ICD operation.(3)

RB7/KBI3/PGD

RB7

DIG

LATB<7> data output.

TTL

PORTB<7> data input; Programmable weak pull-up.

KBI3

TTL

Interrupt-on-pin change.

PGD

DIG

Serial execution data output for ICSP and ICD operation.(3)

Serial execution data input for ICSP and ICD operation.(3)

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reset

Values

on page

PORTB

RB7

RB6

RB5

RB4

RB3

RB2

RB1

RB0

LATB

PORTB Data Latch Register (Read and Write to Data Latch)

TRISB

PORTB Data Direction Control Register

WPUB

WPUB7

WPUB6

WPUB5

WPUB4

WPUB3

WPUB2

WPUB1

WPUB0

IOCB

IOCB7

IOCB6

IOCB5

IOCB4

—

—62

SLRCON

—

SLRE(1)

SLRD(1)

SLRC

SLRB

SLRA

INTCON

GIE/GIEH

PEIE/GIEL

TMR0IE

INT0IE

RBIE

TMR0IF

INT0IF

RBIF

INTCON2

RBPU

INTEDG0

INTEDG1 INTEDG2

—

TMR0IP

—RBIP

INTCON3

INT2IP

INT1IP

—INT2IE

INT1IE

—

INT2IF

INT1IF

ANSELH

—

ANS12

ANS11

ANS10

ANS9

ANS8

Legend: — = unimplemented, read as ‘0’. Shaded cells are not used by PORTB.

Note 1:

Not implemented on PIC18F2XK20 devices.

TABLE 10-3:

PORTB I/O SUMMARY (CONTINUED)

Function

TRIS

Setting

I/O

Type

Description

Legend:

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

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

Note

Configuration on POR is determined by the PBADEN Configuration bit. Pins are configured as analog inputs by default

when PBADEN is set and digital inputs when PBADEN is cleared.

Alternate assignment for CCP2 when the CCP2MX Configuration bit is ‘0’. Default assignment is RC1.

All other pin functions are disabled when ICSP or ICD are enabled.

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