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19 port c data register (pcdr) – Renesas SH7781 User Manual

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28. General Purpose I/O Ports (GPIO)

Rev.1.00 Jan. 10, 2008 Page 1420 of 1658
REJ09B0261-0100

28.2.19

Port C Data Register (PCDR)

PCDR is an 8-bit readable/writable register that stores port C data.

0

1

2

3

4

5

6

7

0

0

0

0

0

0

0

0

PC0DT

PC1DT

PC2DT

PC3DT

PC4DT

PC5DT

PC6DT

PC7DT

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Bit:

Initial value:

R/W:

Bit Bit

Name

Initial
value R/W Description

7 PC7DT

0 R/W

6 PC6DT

0 R/W

5 PC5DT

0 R/W

4 PC4DT

0 R/W

3 PC3DT

0 R/W

2 PC2DT

0 R/W

These bits store output data of a pin which is used as a
general-purpose output port. When the pin functions as
a general-purpose output port, reading the port will read
out the value of the corresponding bit of this register.

When the pin functions as a general-purpose input port,
reading the port will read out the status of the
corresponding pin.

1 PC1DT

0 R/W

0 PC0DT

0 R/W