h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 200

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 I/O Ports
9.9
Port D is an 8-bit I/O port that also functions as the realtime input port pins.
The realtime input port stores the pin states of port D in PDRTIDR using the
trigger input. The falling, rising, or both edges of the
Port D has the following registers.
9.9.1
PDDDR is an 8-bit write-only register, the individual bits of which specify whether the pins of
port D are used for input or output.
Rev. 3.00 Oct 04, 2005 page 160 of 598
REJ09B0155-0300
Bit
7
6
5
4
3
2
1
0
Port D data direction register (PDDDR)
Port D data register (PDDR)
Port D register (PORTD)
Port D pull-up MOS control register (PDPCR)
Port D realtime input data register (PDRTIDR)
Bit Name
PD7DDR
PD6DDR
PD5DDR
PD4DDR
PD3DDR
PD2DDR
PD1DDR
PD0DDR
Port D
Port D Data Direction Register (PDDDR)
Initial Value
0
0
0
0
0
0
0
0
R/W
W
W
W
W
W
W
W
W
When a pin is specified as a general purpose I/O
port, setting these bits to 1 makes the corresponding
port 1 pin an output pin. Clearing these bits to 0
makes the pin an input pin.
Description
I R Q 3
pin can be used as a trigger timing.
I R Q 3
pin as the