Datasheet

Section 9 I/O Ports
Rev. 3.00 Sep. 14, 2006 Page 129 of 408
REJ09B0105-0300
9.4.2 Port Data Register 7 (PDR7)
PDR7 is a general I/O port data register of port 7.
Bit Bit Name
Initial
Value R/W Description
7  1  Reserved
This bit is always read as 1.
6
5
4
P76
P75
P74
0
0
0
R/W
R/W
R/W
These bits store output data for port 7 pins.
If PDR7 is read while PCR7 bits are set to 1, the value
stored in PDR7 is read. If PDR7 is read while PCR7 bits
are cleared to 0, the pin states are read regardless of the
value stored in PDR7.
3 to 0  All 1  Reserved
These bits are always read as 1.
9.4.3 Pin Functions
The correspondence between the register specification and the port functions is shown below.
• P76/TMOV pin
Register TCSRV PCR7
Bit Name OS3 to OS0 PCR76 Pin Function
Setting value 0000 0 P76 input pin
1 P76 output pin
Other than
the above
values
X TMOV output pin
[Legend]
X: Don't care