HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 412

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

Section 9 I/O Ports
9.6.2
Table 9.9 shows the port 5 register configuration.
Table 9.9
Name
Port 5 data direction register
Port 5 data register
Port 5 register
Port function control register 2
System control register
Notes: 1. Lower 16 bits of the address.
Port 5 Data Direction Register (P5DDR)
P5DDR is an 8-bit write-only register, the individual bits of which specify input or output for the
pins of port 5. Bits 7 to 4 are reserved. P5DDR cannot be read; if it is, an undefined value will be
read.
Setting a P5DDR bit to 1 makes the corresponding port 5 pin an output pin, while clearing the bit
to 0 makes the pin an input pin.
P5DDR 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. As the SCI is initialized, the pin states are determined by the
P5DDR and P5DR specifications.
Rev.6.00 Sep. 27, 2007 Page 382 of 1268
REJ09B0220-0600
Bit
Initial value :
R/W
2. Value of bits 3 to 0.
Register Configuration
Port 5 Registers
:
:
Undefined Undefined Undefined Undefined
—
—
7
—
—
6
Abbreviation
P5DDR
P5DR
PORT5
PFCR2
SYSCR
—
—
5
—
—
4
R/W
W
R/W
R
R/W
R/W
P53DDR P52DDR P51DDR P50DDR
W
3
0
Initial Value
H'0 *
H'0 *
Undefined
H'30
H'01
2
2
W
2
0
W
1
0
Address *
H'FEB4
H'FF64
H'FF54
H'FFAC
H'FF39
W
0
0
1