HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 413

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Port 5 Data Register (P5DR)
P5DR is an 8-bit readable/writable register that stores output data for the port 5 pins (P5
Bits 7 to 4 are reserved; they return an undefined value if read, and cannot be modified.
P5DR is initialized to H'0 (bits 3 to 0) by a reset, and in hardware standby mode. It retains its prior
state in software standby mode.
Port 5 Register (PORT5)
Note: * Determined by state of pins P5
PORT5 is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of
output data for the port 5 pins (P5
Bits 7 to 4 are reserved; they return an undefined value if read, and cannot be modified.
If a port 5 read is performed while P5DDR bits are set to 1, the P5DR values are read. If a port 5
read is performed while P5DDR bits are cleared to 0, the pin states are read.
After a reset and in hardware standby mode, PORT5 contents are determined by the pin states, as
P5DDR and P5DR are initialized. PORT5 retains its prior state in software standby mode.
Bit
Initial value :
R/W
Bit
Initial value :
R/W
:
:
:
:
Undefined Undefined Undefined Undefined
Undefined Undefined Undefined Undefined
—
—
—
—
7
7
—
—
—
—
6
6
3
to P5
3
to P5
0
—
—
—
—
) must always be performed on P5DR.
5
5
0
.
—
—
—
—
4
4
Rev.6.00 Sep. 27, 2007 Page 383 of 1268
P53DR
R/W
P53
— *
R
3
0
3
P52DR
R/W
P52
— *
R
2
0
2
Section 9 I/O Ports
REJ09B0220-0600
P51DR
R/W
P51
— *
R
0
1
1
3
to P5
P50DR
R/W
P50
— *
R
0
0
0
0
).