PIC18F2480_09 Datasheet, PDF (139/490 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2480/2580/4480/4580
TABLE 11-3: 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: Available on 40/44-pin devices only.
© 2009 Microchip Technology Inc.
DS39637D-page 139