18F8680 datasheet(137/496 Pages) MICROCHIP

137 / 496 page

 2004 Microchip Technology Inc.

DS30491C-page 135

PIC18F6585/8585/6680/8680

TABLE 10-7:

PORTD FUNCTIONS

TABLE 10-8:

SUMMARY OF REGISTERS ASSOCIATED WITH PORTD

Name

Bit#

Buffer Type

Function

RD0/PSP0/AD0(2)

bit 0

ST/TTL(1)

Input/output port pin, Parallel Slave Port bit 0 or address/data bus bit 0.

RD1/PSP1/AD1(2)

bit 1

ST/TTL(1)

Input/output port pin, Parallel Slave Port bit 1 or address/data bus bit 1.

RD2/PSP2/AD2(2)

bit 2

ST/TTL(1)

Input/output port pin, Parallel Slave Port bit 2 or address/data bus bit 2.

RD3/PSP3/AD3(2)

bit 3

ST/TTL(1)

Input/output port pin, Parallel Slave Port bit 3 or address/data bus bit 3.

RD4/PSP4/AD4(2)

bit 4

ST/TTL(1)

Input/output port pin, Parallel Slave Port bit 4 or address/data bus bit 4.

RD5/PSP5/AD5(2)

bit 5

ST/TTL(1)

Input/output port pin, Parallel Slave Port bit 5 or address/data bus bit 5.

RD6/PSP6/AD6(2)

bit 6

ST/TTL(1)

Input/output port pin, Parallel Slave Port bit 6 or address/data bus bit 6.

RD7/PSP7/AD7(2)

bit 7

ST/TTL(1)

Input/output port pin, Parallel Slave Port bit 7 or address/data bus bit 7.

Legend: ST = Schmitt Trigger input, TTL = TTL input

Note 1:

Input buffers are Schmitt Triggers when in I/O mode and TTL buffers when in System Bus or Parallel Slave

Port mode.

Available in PIC18F8X8X devices only.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

POR, BOR

Value on

all other

Resets

PORTD

RD7

RD6

RD5

RD4

RD3

RD2

RD1

RD0

xxxx xxxx

uuuu uuuu

LATD

LATD Data Output Register

xxxx xxxx

uuuu uuuu

TRISD

PORTD Data Direction Register

1111 1111

PSPCON

IBF

OBF

IBOV

PSPMODE

—

0000 ----

MEMCON

EBDIS

—

WAIT1

WAIT0

—

WM1

WM0

0-00 --00

Legend: x = unknown, u = unchanged, – = unimplemented, read as ‘0’. Shaded cells are not used by PORTD.

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