Port D; Overview - Renesas H8S Series Hardware Manual

9.11

Port D

9.11.1

Overview

Port D is an 8-bit I/O port. Port D has a data bus I/O function, and the pin functions change according to the operating
mode. In the H8S/2352, port D pins are dedicated data bus pins.
Port D has a on-chip MOS input pull-up function that can be controlled by software (on-chip ROM version only).
Figure 9-19 shows the port D pin configuration.
Port D pins
PD /D
7 15
PD /D
6 14
PD /D
5 13
PD /D
4 12
Port D
PD /D
3 11
PD /D
2 10
PD /D
1 9
PD /D
0 8
Note: * Modes 6 and 7 are provided in the on-chip ROM version only.
Figure 9-19 Port D Pin Functions
Pin functions in mode 7*
PD (I/O)
7
PD (I/O)
6
PD (I/O)
5
PD (I/O)
4
PD (I/O)
3
PD (I/O)
2
PD (I/O)
1
PD (I/O)
0
Pin functions in modes 4 to 6*
D (I/O)
15
D (I/O)
14
D (I/O)
13
D (I/O)
12
D (I/O)
11
D (I/O)
10
D (I/O)
9
D (I/O)
8
Rev.6.00 Oct.28.2004 page 317 of 1016
REJ09B0138-0600H