24 port h data register (phdr) – Renesas SH7781 User Manual
Page 1455
28. General Purpose I/O Ports (GPIO)
Rev.1.00 Jan. 10, 2008 Page 1425 of 1658
REJ09B0261-0100
28.2.24
Port H Data Register (PHDR)
PHDR is an 8-bit readable/writable register that stores port H data.
0
1
2
3
4
5
6
7
x
x
PH0DT
PH1DT
PH2DT
PH3DT
PH4DT
PH5DT
PH6DT
PH7DT
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
x
x
x
x
x
x
Bit Bit
Name
Initial
value R/W Description
7 PH7DT
Pin
input
R/W
6 PH6DT
Pin
input
R/W
5 PH5DT
Pin
input
R/W
4 PH4DT
Pin
input
R/W
3 PH3DT
Pin
input
R/W
2 PH2DT
Pin
input
R/W
1 PH1DT
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.
When the pin functions as a general-purpose input port,
reading the port will read out the status of the
corresponding pin.
0 PH0DT
Pin
input
R/W