Datasheet

 2010 Microchip Technology Inc. DS41303G-page 131
PIC18F2XK20/4XK20
TABLE 10-7: PORTD I/O SUMMARY
Pin Function
TRIS
Setting
I/O
I/O
Type
Description
RD0/PSP0 RD0 0 O DIG LATD<0> data output.
1 I ST PORTD<0> data input.
PSP0 x O DIG PSP read data output (LATD<0>); takes priority over port data.
x I TTL PSP write data input.
RD1/PSP1 RD1 0 O DIG LATD<1> data output.
1 I ST PORTD<1> data input.
PSP1 x O DIG PSP read data output (LATD<1>); takes priority over port data.
x I TTL PSP write data input.
RD2/PSP2 RD2 0 O DIG LATD<2> data output.
1 I ST PORTD<2> data input.
PSP2 x O DIG PSP read data output (LATD<2>); takes priority over port data.
x I TTL PSP write data input.
RD3/PSP3 RD3 0 O DIG LATD<3> data output.
1 I ST PORTD<3> data input.
PSP3 x O DIG PSP read data output (LATD<3>); takes priority over port data.
x I TTL PSP write data input.
RD4/PSP4 RD4 0 O DIG LATD<4> data output.
1 I ST PORTD<4> data input.
PSP4 x O DIG PSP read data output (LATD<4>); takes priority over port data.
x I TTL PSP write data input.
RD5/PSP5/P1B RD5 0 O DIG LATD<5> data output.
1 I ST PORTD<5> data input.
PSP5 x O DIG PSP read data output (LATD<5>); takes priority over port data.
x I TTL PSP write data input.
P1B 0 O DIG ECCP1 Enhanced PWM output, channel B; takes priority over port and
PSP data. May be configured for tri-state during Enhanced PWM
shutdown events.
RD6/PSP6/P1C RD6 0 O DIG LATD<6> data output.
1 I ST PORTD<6> data input.
PSP6 x O DIG PSP read data output (LATD<6>); takes priority over port data.
x I TTL PSP write data input.
P1C 0 O DIG ECCP1 Enhanced PWM output, channel C; takes priority over port and
PSP data. May be configured for tri-state during Enhanced PWM
shutdown events.
RD7/PSP7/P1D RD7 0 O DIG LATD<7> data output.
1 I ST PORTD<7> data input.
PSP7 x O DIG PSP read data output (LATD<7>); takes priority over port data.
x I TTL PSP write data input.
P1D 0 O DIG ECCP1 Enhanced PWM output, channel D; takes priority over port and
PSP data. May be configured for tri-state during Enhanced PWM
shutdown events.
Legend: DIG = Digital level output; TTL = TTL input buffer; ST = Schmitt Trigger input buffer; x = Don’t care
(TRIS bit does not affect port direction or is overridden for this option).