SH7052 datasheet(692/919 Pages) RENESAS

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19.4

Port C

Port C is an input/output port with the 5 pins shown in figure 19.3.

PC4 (I/O) /

IRQ0 (input)

PC3 (I/O) /RxD2 (input)

PC2 (I/O) /TxD2 (output)

PC1 (I/O) /RxD1 (input)

PC0 (I/O) /TxD1 (output)

Port C

Figure 19.3 Port C

19.4.1

The port C register configuration is shown in table 19.5.

Table 19.5

Name

Abbreviation

R/W

Initial Value

Address

Access Size

Port C data register

PCDR

R/W

H'0000

H'FFFFF73E

8, 16

Note:

A register access is performed in four or five cycles regardless of the access size.

19.4.2

Port C Data Register (PCDR)

Bit:

——

———

—

Initial value:

R/W:

Bit:

—

PC4

PC3

PC2

PC1

PC0

Initial value:

R/W:

R/W

The port C data register (PCDR) is a 16-bit readable/writable register that stores port C data. Bits

PC4DR to PC0DR correspond to pins PC4/

IRQ0 to PC0/TxD1.

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