HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 293

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Modes 2 and 6
In modes 2 and 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.
Note: Modes 2 and 6 cannot be used in the H8S/2240.
Port B pin functions in modes 2 and 6 are shown in figure 8.12.
Modes 3 and 7
In modes 3 and 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.
Note: Modes 3 and 7 cannot be used in the H8S/2240.
Port B pin functions in modes 3 and 7 are shown in figure 8.13.
Port B
Figure 8.12 Port B Pin Functions (Modes 2 and 6)
When PBDDR = 1
A
A
A
A
A
A
A
A
15
14
13
12
11
10
9
8
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
Rev.3.00 Mar. 26, 2007 Page 251 of 772
When PBDDR = 0
PB
PB
PB
PB
PB
PB
PB
PB
7
6
5
4
3
2
1
0
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
Section 8 I/O Ports
REJ09B0355-0300