HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 264

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

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.
Port B pin functions in modes 2 and 6 are shown in figure 8.11.
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.
Port B pin functions in modes 3 and 7 are shown in figure 8.12.
Note: * Modes 1 to 3 are not available on the F-ZTAT version.
Modes 2, 3, 6, and 7 are not available on the ROMless version.
Port B
Figure 8.11 Port B Pin Functions (Modes 2 and 6) *
Figure 8.12 Port B Pin Functions (Modes 3 and 7)*
When PBDDR = 1
A
A
A
A
A
A
A
A
15
14
13
12
11
10
9
8
Port B
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
PB
PB
PB
PB
PB
PB
PB
PB
7
6
5
4
3
2
1
0
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
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)
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