DM163006 datasheet(107/320 Pages) MICROCHIP

107 / 320 page

 2001 Microchip Technology Inc.

Advance Information

DS39541A-page 107

PIC18C601/801

TABLE 9-3:

PORTB FUNCTIONS

TABLE 9-4:

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/CCP2

bit3

TTL/ST(3)

Input/output pin or Capture2 input or Capture2 output or PWM2 output.

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 pin is a Schmitt Trigger input when configured as the external interrupt.

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

3: This pin is a Schmitt Trigger input when used in a Capture input.

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

—

RBIP

1111 1111

INTCON3

INT2IP

INT1IP

—

INT2IE

INT1IE

—

INT2IF

INT1IF 1100 0000 1100 0000

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

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