PIC16LC622-04/SS 查看數據表（PDF） - Microchip Technology

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PIC16LC622-04/SS

EPROM-Based 8-Bit CMOS Microcontrollers

Microchip Technology 

PIC16C62X

TABLE 5-3: PORTB FUNCTIONS

Name

RB0/INT

Bit #

bit0

Buffer Type

TTL/ST(1)

Function

Input/output or external interrupt input. Internal software programmable

weak pull-up.

RB1

bit1 TTL

Input/output pin. Internal software programmable weak pull-up.

RB2

bit2 TTL

Input/output pin. Internal software programmable weak pull-up.

RB3

bit3 TTL

Input/output pin. 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 pin.

RB7

bit7

TTL/ST(2)

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

weak pull-up. Serial programming data pin.

Legend: ST = Schmitt Trigger, TTL = TTL 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.

TABLE 5-4: SUMMARY OF REGISTERS ASSOCIATED WITH PORTB

Address Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

POR

Value on

All Other

RESETS

06h

PORTB RB7

RB6

RB5 RB4 RB3 RB2 RB1 RB0 xxxx xxxx uuuu uuuu

86h

TRISB TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 1111 1111 1111 1111

81h

OPTION RBPU INTEDG T0CS T0SE PSA

PS2

PS1

PS0 1111 1111 1111 1111

Legend: u = unchanged, x = unknown

Note 1: Shaded bits are not used by PORTB.

 2003 Microchip Technology Inc.

DS30235J-page 29

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