PIC18F24 MICROCHIP [Microchip Technology], PIC18F24 Datasheet - Page 101

• Manufacturer Part Number: PIC18F24
• Description: 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
• Manufacturer: MICROCHIP [Microchip Technology]

TABLE 9-3:
TABLE 9-4:
 2004 Microchip Technology Inc.
RB0/INT0
RB1/INT1
RB2/CANTX/
INT2
RB3/CANRX
RB4
RB5/PGM
RB6/PGC
RB7/PGD
Legend: TTL = TTL input, ST = Schmitt Trigger input
Note 1:
PORTB
LATB
TRISB
INTCON
INTCON2
INTCON3
Legend:
Name
Name
2:
This buffer is a Schmitt Trigger input when configured as the external interrupt.
This buffer is a Schmitt Trigger input when used in Serial Programming mode.
x = unknown, u = unchanged. Shaded cells are not used by PORTB.
LATB Data Output Register
PORTB Data Direction Register
GIE/GIEH PEIE/GIEL TMR0IE
INT2IP
RBPU
Bit 7
RB7
Bit#
bit 0
bit 1
bit 2
bit 3
bit 4
bit 5
bit 6
bit 7
PORTB FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
INTEDG0 INTEDG1
INT1IP
Bit 6
RB6
TTL/ST
TTL/ST
TTL/ST
TTL/ST
TTL/ST
Buffer
TTL
TTL
TTL
(1)
(1)
(1)
(2)
(2)
Bit 5
RB5
—
Input/output pin or external interrupt 0 input.
Internal software programmable weak pull-up.
Input/output pin or external interrupt 1 input.
Internal software programmable weak pull-up.
Input/output pin, CAN bus transmit pin or external interrupt 2 input.
Internal software programmable weak pull-up.
Input/output pin or CAN bus receive 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. Low-voltage serial programming enable.
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up. Serial programming clock.
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up. Serial programming data.
INT0IE
INT2IE
Bit 4
RB4
—
INT1IE
RBIE
Bit 3
RB3
—
TMR0IP
TMR0IF
Bit 2
RB2
—
Function
INT0IF
INT2IF
Bit 1
RB1
—
INT1IF
RBIF
RBIP
Bit 0
RB0
PIC18FXX8
xxxx xxxx
xxxx xxxx
1111 1111
0000 000x
111- -1-1
11-0 0-00
POR, BOR
Value on
DS41159D-page 99
uuuu uuuu
uuuu uuuu
1111 1111
0000 000u
111- -1-1
11-1 0-00
Value on
all other
Resets