Datasheet

© 2009 Microchip Technology Inc. DS39632E-page 123
PIC18F2455/2550/4455/4550
TABLE 10-7: PORTD I/O SUMMARY
Pin Function
TRIS
Setting
I/O I/O Type Description
RD0/SPP0 RD0 0 OUT DIG LATD<0> data output.
1 IN ST PORTD<0> data input.
SPP0 1 OUT DIG SPP<0> output data; takes priority over port data.
1 IN TTL SPP<0> input data.
RD1/SPP1 RD1 0 OUT DIG LATD<1> data output.
1 IN ST PORTD<1> data input.
SPP1 1 OUT DIG SPP<1> output data; takes priority over port data.
1 IN TTL SPP<1> input data.
RD2/SPP2 RD2 0 OUT DIG LATD<2> data output.
1 IN ST PORTD<2> data input.
SPP2 1 OUT DIG SPP<2> output data; takes priority over port data.
1 IN TTL SPP<2> input data.
RD3/SPP3 RD3 0 OUT DIG LATD<3> data output.
1 IN ST PORTD<3> data input.
SPP3 1 OUT DIG SPP<3> output data; takes priority over port data.
1 IN TTL SPP<3> input data.
RD4/SPP4 RD4 0 OUT DIG LATD<4> data output.
1 IN ST PORTD<4> data input.
SPP4 1 OUT DIG SPP<4> output data; takes priority over port data.
1 IN TTL SPP<4> input data.
RD5/SPP5/P1B RD5 0 OUT DIG LATD<5> data output
1 IN ST PORTD<5> data input
SPP5 1 OUT DIG SPP<5> output data; takes priority over port data.
1 IN TTL SPP<5> input data.
P1B 0 OUT DIG ECCP1 Enhanced PWM output, Channel B; takes priority over
port and SPP data.
(1)
RD6/SPP6/P1C RD6 0 OUT DIG LATD<6> data output.
1 IN ST PORTD<6> data input.
SPP6 1 OUT DIG SPP<6> output data; takes priority over port data.
1 IN TTL SPP<6> input data.
P1C 0 OUT DIG ECCP1 Enhanced PWM output, Channel C; takes priority over
port and SPP data.
(1)
RD7/SPP7/P1D RD7 0 OUT DIG LATD<7> data output.
1 IN ST PORTD<7> data input.
SPP7 1 OUT DIG SPP<7> output data; takes priority over port data.
1 IN TTL SPP<7> input data.
P1D 0 OUT DIG ECCP1 Enhanced PWM output, Channel D; takes priority over
port and SPP data.
(1)
Legend: OUT = Output, IN = Input, DIG = Digital Output, ST = Schmitt Buffer Input, TTL = TTL Buffer Input
Note 1: May be configured for tri-state during Enhanced PWM shutdown events.