PIC16C620 Microchip Technology, PIC16C620 Datasheet - Page 29

• Manufacturer Part Number: PIC16C620
• Description: EPROM-Based 8-Bit CMOS Microcontroller
• Manufacturer: Microchip Technology

TABLE 5-3:
TABLE 5-4:
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.
Address Name
06h
86h
81h
1998 Microchip Technology Inc.
Note:
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
Name
PORTB
TRISB
OPTION
Shaded bits are not used by PORTB.
u = unchanged
x = unknown
Bit #
bit7
bit0
bit1
bit2
bit3
bit4
bit5
bit6
PORTB FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
TRISB7
RBPU
Bit 7
RB7
Buffer Type
TTL/ST
TTL/ST
TTL/ST
INTEDG
TRISB6
TTL
TTL
TTL
TTL
TTL
Bit 6
RB6
(1)
(2)
(2)
TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 1111 1111 1111 1111
T0CS
Bit 5
RB5
Input/output or external interrupt input. Internal software programmable
weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin (with interrupt on change). Internal software
programmable weak pull-up.
Input/output pin (with interrupt on change). Internal software
programmable weak pull-up.
Input/output pin (with interrupt on change). Internal software
programmable weak pull-up. Serial programming clock pin.
Input/output pin (with interrupt on change). Internal software
programmable weak pull-up. Serial programming data pin.
T0SE
Bit 4
RB4
Preliminary
Bit 3
PSA
RB3
Bit 2
RB2
PS2
Function
Bit 1
RB1
PS1
Bit 0
RB0
PS0
PIC16C62X
xxxx xxxx uuuu uuuu
1111 1111 1111 1111
Value on
POR
DS30235G-page 29
All Other
Value on
Resets