HD6432345 Datasheet, PDF(264/907 Page) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

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HD6432345 Datasheet, PDF (264/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

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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.

Port B

When PBDDR = 1

A15 (output)

A14 (output)

A13 (output)

A12 (output)

A11 (output)

A10 (output)

A9 (output)

A8 (output)

When PBDDR = 0

PB7 (input)

PB6 (input)

PB5 (input)

PB4 (input)

PB3 (input)

PB2 (input)

PB1 (input)

PB0 (input)

Figure 8.11 Port B Pin Functions (Modes 2 and 6) *

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.

Port B

PB7 (I/O)

PB6 (I/O)

PB5 (I/O)

PB4 (I/O)

PB3 (I/O)

PB2 (I/O)

PB1 (I/O)

PB0 (I/O)

Figure 8.12 Port B Pin Functions (Modes 3 and 7)*

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.

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