Renesas H8S/2633 Series Hardware Manual page 543

(3) Mode 7
In mode 7, port C pins function as I/O ports and I/O can be specified for each pin in bit units.
When each bit in PCDDR is set to 1, the corresponding pin functions as an output port and when
the bit is cleared to 0, the pin functions as an input port.
Figure 10B-15 shows the port C pin functions.
Port C
Figure 10B-15 Port C Pin Functions (Mode 7)
PC7 (I/O)
PC6 (I/O)
PC5 (I/O)
PC4 (I/O)
PC3 (I/O)
PC2 (I/O)
PC1 (I/O)
PC0 (I/O)
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