HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 434

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 9 I/O Ports
9.9
9.9.1
Port B is an 8-bit I/O port. Port B has an address bus output function, and the pin functions change
according to the operating mode.
Port B has a built-in MOS input pull-up function that can be controlled by software.
Figure 9.8 shows the port B pin configuration.
Rev.6.00 Sep. 27, 2007 Page 404 of 1268
REJ09B0220-0600
Port B
Overview
Pin functions in mode 6
PB
PB
PB
PB
PB
PB
PB
PB
Port B
7
6
5
4
3
2
1
0
(input) / A
(input) / A
(input) / A
(input) / A
(input) / A
(input) / A
(input) / A
(input) / A
15
14
13
12
11
10
9
8
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
Port B pins
PB
PB
PB
PB
PB
PB
PB
PB
7
6
5
4
3
2
1
0
Figure 9.8 Port B Pin Functions
/ A
/ A
/ A
/ A
/ A
/ A
/ A
/ A
14
13
12
11
10
9
8
15
Pin functions in modes 4 and 5
A
A
A
A
A
A
A
A
Pin functions in mode 7
PB
PB
PB
PB
PB
PB
PB
PB
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)