HD64F3687GFPV Datasheet, PDF (154/538 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.3.2 Port Data Register 3 (PDR3)
PDR3 is a general I/O port data register of port 3.
Initial
Bit
Bit Name Value R/W Description
7
P37
0
R/W PDR3 stores output data for port 3 pins.
6
P36
0
5
P35
0
4
P34
0
3
P33
0
R/W If PDR3 is read while PCR3 bits are set to 1, the value
R/W ^{stored in PDR3 is read. If PDR3 is read while PCR3 bits}
are cleared to 0, the pin states are read regardless of the
R/W _{value stored in PDR3.}
R/W
2
P32
0
R/W
1
P31
0
R/W
0
P30
0
R/W
9.3.3 Pin Functions
The correspondence between the register specification and the port functions is shown below.
P37 pin
Register
PCR3
Bit Name
PCR37
Setting Value 0
1
Pin Function
P37 input pin
P37 output pin
P36 pin
Register
PCR3
Bit Name
PCR36
Setting Value 0
1
Pin Function
P36 input pin
P36 output pin
Rev.5.00 Nov. 02, 2005 Page 120 of 500
REJ09B0027-0500