Port E; Overview - Renesas H8S Series Hardware Manual

16-bit single-chip microcomputer
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9.12

Port E

9.12.1

Overview

Port E is an 8-bit I/O port. Port E has a data bus I/O function, and the pin functions change according to the operating
mode and whether 8-bit or 16-bit bus mode is selected.
Port E has a on-chip MOS input pull-up function that can be controlled by software (on-chip ROM version only).
Figure 9-22 shows the port E pin configuration.
Note: * Modes 6 and 7 are provided in the on-chip ROM version only.
Rev.6.00 Oct.28.2004 page 322 of 1016
REJ09B0138-0600H
Port E pins
PE
/D
7
7
PE
/D
6
6
PE
/D
5
5
PE
/D
4
4
Port E
PE
/D
3
3
PE
/D
2
2
PE
/D
1
1
PE
/D
0
0
Figure 9-22 Port E Pin Functions
Pin functions in mode 7*
PE
(I/O)
7
PE
(I/O)
6
PE
(I/O)
5
PE
(I/O)
4
PE
(I/O)
3
PE
(I/O)
2
PE
(I/O)
1
PE
(I/O)
0
Pin functions in modes 4 to 6*
PE
(I/O)/
D
(I/O)
7
7
PE
(I/O)/
D
(I/O)
6
6
PE
(I/O)/
D
(I/O)
5
5
PE
(I/O)/
D
(I/O)
4
4
PE
(I/O)/
D
(I/O)
3
3
PE
(I/O)/
D
(I/O)
2
2
PE
(I/O)/
D
(I/O)
1
1
PE
(I/O)/
D
(I/O)
0
0

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