PIC18F2682 Datasheet, PDF (135/484 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2682/2685/4682/4685
TABLE 10-3: PORTB I/O SUMMARY
Pin Name
Function I/O TRIS Buffer
Description
RB0/INT0/FLT0/AN10 RB0
OUT 0
DIG LATB<0> data output.
IN
1
TTL PORTB<0> data input. Weak pull-up available only in this mode.
INT0
IN
1
ST External interrupt 0 input.
FLT0⁽¹⁾
IN
1
ST Enhanced PWM Fault input.
AN10
IN
1
ANA A/D input channel 10. Enabled on POR, this analog input overrides
the digital input (read as clear – low level).
RB1/INT1/AN8
RB1
OUT 0
DIG LATB<1> data output.
IN
1
TTL PORTB<1> data input. Weak pull-up available only in this mode.
INT1
IN
1
ST External interrupt 1 input.
AN8
IN
1
ANA A/D input channel 8. Enabled on POR, this analog input overrides
the digital input (read as clear – low level).
RB2/INT2/CANTX RB2
OUT x
DIG LATB<2> data output.
IN
1
TTL PORTB<2> data input. Weak pull-up available only in this mode.
INT2
IN
1
ST External interrupt 2 input.
CANTX OUT 1
DIG CAN transmit signal output. The CAN interface overrides the
TRIS<2> control when enabled.
RB3/CANRX
RB3
OUT 0
DIG LATB<3> data output.
IN
1
TTL PORTB<3> data input. Weak pull-up available only in this mode.
CANRX
IN
1
ST CAN receive signal input. Pin must be configured as a digital input by
setting TRISB<3>.
RB4/KBI0/AN9
RB4
OUT 0
DIG LATB<4> data output.
IN
1
TTL PORTB<4> data input. Weak pull-up available only in this mode.
KBI0
IN
1
TTL Interrupt-on-pin change.
AN9
IN
1
ANA A/D input channel 9. Enabled on POR, this analog input overrides
the digital input (read as clear – low level).
RB5/KBI1/PGM
RB5
OUT 0
DIG LATB<5> data output.
IN
1
TTL PORTB<5> data input. Weak pull-up available only in this mode.
KBI1
IN
1
TTL Interrupt-on-pin change.
PGM
IN
x
ST Low-Voltage Programming mode entry (ICSP™). Enabling this
function overrides digital output.
RB6/KBI2/PGC
RB6
OUT 0
DIG LATB<6> data output.
IN
1
TTL PORTB<6> data input. Weak pull-up available only in this mode.
KBI2
IN
1
TTL Interrupt-on-pin change.
PGC
IN
x
ST Low-Voltage Programming mode entry (ICSP) clock input.
RB7/KBI3/PGD
RB7
OUT 0
DIG LATB<7> data output.
IN
1
TTL PORTB<7> data input. Weak pull-up available only in this mode.
KBI3
IN
1
TTL Interrupt-on-pin change.
PGD
OUT x
DIG Low-Voltage Programming mode entry (ICSP) clock output.
IN
x
ST Low-Voltage Programming mode entry (ICSP) clock input.
Legend: OUT = Output; IN = Input; ANA = Analog Signal; DIG = Digital Output; ST = Schmitt Buffer Input; TTL – TTL Buffer Input
Note 1: This bit is unimplemented on PIC18F2682/2685 devices.
© 2007 Microchip Technology Inc.
Preliminary
DS39761B-page 133