Datasheet

PIC16C62B/72A
DS35008C-page 22 Preliminary  1998-2013 Microchip Technology Inc.
TABLE 3-3 PORTB FUNCTIONS
TABLE 3-4 SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
Name Bit# Buffer Function
RB0/INT bit0 TTL/ST
(1)
Input/output pin 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.
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.
Address 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
06h PORTB RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0 xxxx xxxx uuuu uuuu
86h TRISB PORTB Data Direction Register 1111 1111 1111 1111
81h OPTION_REG RBPU
INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111
Legend: x = unknown, u = unchanged. Shaded cells are not used by PORTB.