PIC16C62X Datasheet, PDF (29/108 Pages) Microchip Technology – EPROM-Based 8-Bit CMOS Microcontroller

PIC16C62X
TABLE 5-3: PORTB FUNCTIONS
Name
Bit # Buffer Type
Function
RB0/INT
bit0
TTL/ST^{(1) 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.
Note 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
86h
81h
Note:
PORTB RB7
RB6
RB5 RB4 RB3 RB2 RB1 RB0 xxxx xxxx uuuu uuuu
TRISB TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 1111 1111 1111 1111
OPTION RBPU INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111
Shaded bits are not used by PORTB.
u = unchanged
x = unknown
© 1998 Microchip Technology Inc.
Preliminary
DS30235G-page 29