HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 438

• 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
Mode 6: In mode 6, port B pins function as address outputs or input ports. Input or output can be
specified on an individual bit basis. Setting a PBDDR bit to 1 makes the corresponding port B pin
an address output, while clearing the bit to 0 makes the pin an input port.
Port B pin functions in mode 6 are shown in figure 9.10.
Mode 7: In mode 7, port B pins function as I/O ports. Input or output can be specified for each pin
on an individual bit basis. Setting a PBDDR bit to 1 makes the corresponding port B pin an output
port, while clearing the bit to 0 makes the pin an input port.
Port B pin functions in mode 7 are shown in figure 9.11.
Rev.6.00 Sep. 27, 2007 Page 408 of 1268
REJ09B0220-0600
Port B
Port B
Figure 9.10 Port B Pin Functions (Mode 6)
Figure 9.11 Port B Pin Functions (Mode 7)
When PBDDR = 1
A
A
A
A
A
A
A
A
When PBDDR = 1
A
A
A
A
A
A
A
A
15
14
13
12
11
10
9
8
15
14
13
12
11
10
9
8
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
When PBDDR = 0
PB
PB
PB
PB
PB
PB
PB
PB
When PBDDR = 0
PB
PB
PB
PB
PB
PB
PB
PB
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)