Renesas SH7781 - Manual (Page 1459)

28. General Purpose I/O Ports (GPIO)
Rev.1.00 Jan. 10, 2008 Page 1429 of 1658
REJ09B0261-0100
28.2.28 Port M Data Register (PMDR)
PMDR is an 8-bit readable/writable register that stores port M data.
0 1 2 3 4 5 6 7
0 0 0 0 0 0 0 0
PM0DT PM1DT — — — — — —
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 to 2
⎯ All
0 R/W Reserved
These bits are always read as 0, and the write value
should always be 0.
1 PM1DT 0 R/W
0 PM0DT 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.