SH7144 Datasheet, PDF (599/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

18.3 Port C
Port C is an input/output port with 16 pins shown in figure 18.4.
Port C
PC15 (I/O) / A15 (output)
PC14 (I/O) / A14 (output)
PC13 (I/O) / A13 (output)
PC12 (I/O) / A12 (output)
PC11 (I/O) / A11 (output)
PC10 (I/O) / A10 (output)
PC9 (I/O) / A9 (output)
PC8 (I/O) / A8 (output)
PC7 (I/O) / A7 (output)
PC6 (I/O) / A6 (output)
PC5 (I/O) / A5 (output)
PC4 (I/O) / A4 (output)
PC3 (I/O) / A3 (output)
PC2 (I/O) / A2 (output)
PC1 (I/O) / A1 (output)
PC0 (I/O) / A0 (output)
Figure 18.4 Port C
18.3.1 Register Descriptions
Port C is a 16-bit input/output port. Port C has the following register. For details on register
addresses and register states during each processing, refer to section 25, List of Registers.
• Port C data register (PCDR)
18.3.2 Port C Data Register (PCDR)
The port C data register (PCDR) is a 16-bit readable/writable register that stores port C data. Bits
PC15DR to PC0DR correspond to pins PC15 to PC0 (multiplexed functions omitted here).
When a pin functions is a general output, if a value is written to PCDR, that value is output
directly from the pin, and if PCDR is read, the register value is returned directly regardless of the
pin state.
Rev. 2.0, 09/02, page 559 of 732