Renesas SH7781 用户手册
28. General Purpose I/O Ports (GPIO)
Rev.1.00 Jan. 10, 2008 Page 1427 of 1658
REJ09B0261-0100
28.2.26
Port K Data Register (PKDR)
PKDR is an 8-bit readable/writable register that stores port K data.
0
1
2
3
4
5
6
7
x
x
PK0DT
PK1DT
PK2DT
PK3DT
PK4DT
PK5DT
PK6DT
PK7DT
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
0
0
x
x
x
x
Bit Bit
Name
Initial
value R/W Description
value R/W Description
7 PK7DT
0 R/W
6 PK6DT
0 R/W
5 PK5DT
Pin
input
R/W
4 PK4DT
Pin
input
R/W
3 PK3DT
Pin
input
R/W
2 PK2DT
Pin
input
R/W
1 PK1DT
Pin
input
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.
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.
reading the port will read out the status of the
corresponding pin.
0 PK0DT
Pin
input
R/W