PIC18LC658T-ISLASHCL datasheet(92/366 Pages) MICROCHIP

92 / 366 page

PIC18CXX8

DS30475A-page 92

Advanced Information

 2000 Microchip Technology Inc.

TABLE 8-3:

PORTB FUNCTIONS

TABLE 8-4:

SUMMARY OF REGISTERS ASSOCIATED WITH PORTB

Name

Bit#

Buffer

Function

RB0/INT0

bit0

TTL/ST(1)

Input/output pin or external interrupt 0 input. Internal software

programmable weak pull-up.

RB1/INT1

bit1

TTL/ST(1)

Input/output pin or external interrupt 1 input. Internal software

programmable weak pull-up.

RB2/INT2

bit2

TTL/ST(1)

Input/output pin or external interrupt 2 input. Internal software

programmable weak pull-up.

RB3/INT3

bit3

TTL/ST(1)

Input/output pin or external interrupt 3 input. Internal software

programmable weak pull-up.

RB4

bit4

TTL

Input/output pin (with interrupt-on-change). Internal software programmable

weak pull-up.

RB5

bit5

TTL

Input/output pin (with interrupt-on-change). Internal software programmable

weak pull-up.

RB6

bit6

TTL/ST(2)

Input/output pin (with interrupt-on-change). Internal software programmable

weak pull-up. Serial programming clock.

RB7

bit7

TTL/ST(2)

Input/output pin (with interrupt-on-change). Internal software programmable

weak pull-up. Serial programming data.

Legend: TTL = TTL input, ST = Schmitt Trigger input

Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.

2: This buffer is a Schmitt Trigger input when used in Serial Programming mode.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

POR,

BOR

Value on

all other

RESETS

PORTB

RB7

RB6

RB5

RB4

RB3

RB2

RB1

RB0

xxxx xxxx

uuuu uuuu

LATB

LATB Data Output Register

xxxx xxxx

uuuu uuuu

TRISB

PORTB Data Direction Register

1111 1111

INTCON

GIE/

GIEH

PEIE/

GIEL

TMR0IE

INT0IE

RBIE

TMR0IF

INT0IF

RBIF

0000 000x

0000 000u

INTCON2

RBPU

INTEDG0

INTEDG1

INTEDG2

INTEDG3

TMR0IP

INT3IP

RBIP

1111 1111

INTCON3

INT2IP

INT1IP

INT3IE

INT2IE

INT1IE

INT3IF

INT2IF

INT1IF

1100 0000

Legend: x = unknown, u = unchanged. Shaded cells are not used by PORTB.

PIC18LC658T-I/CL Datasheet(PDF) 92 Page - Microchip Technology

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