HD6432351 Datasheet, PDF (393/989 Pages) Renesas Technology Corp – The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise

Modes 2 and 6 [H8S/2351 Only]: In modes 2 and 6, port C pins function as address outputs or
input ports. Input or output can be specified on an individual bit basis. Setting a PCDDR bit to 1
makes the corresponding port C pin an address output, while clearing the bit to 0 makes the pin an
input port.
Port C pin functions in modes 2 and 6 are shown in figure 9-17.
Port C
When PCDDR = 1
A₇ (output)
A₆ (output)
A₅ (output)
A₄ (output)
A₃ (output)
A₂ (output)
A₁ (output)
A₀ (output)
When PCDDR = 0
PC₇ (input)
PC₆ (input)
PC₅ (input)
PC₄ (input)
PC₃ (input)
PC₂ (input)
PC₁ (input)
PC₀ (input)
Figure 9-17 Port C Pin Functions (Modes 2 and 6)
Modes 3 and 7 [H8S/2351 Only]: In modes 3 and 7, port C pins function as I/O ports. Input or
output can be specified for each pin on an individual bit basis. Setting a PCDDR bit to 1 makes the
corresponding port C pin an output port, while clearing the bit to 0 makes the pin an input port.
Port C pin functions in modes 3 and 7 are shown in figure 9-18.
Port C
PC₇ (I/O)
PC₆ (I/O)
PC₅ (I/O)
PC₄ (I/O)
PC₃ (I/O)
PC₂ (I/O)
PC₁ (I/O)
PC₀ (I/O)
Figure 9-18 Port C Pin Functions (Modes 3 and 7)
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