HD6473032F16 Datasheet, PDF (294/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Section 9 I/O Ports
P5DDR is a write-only register. Its value cannot be read. All bits return 1 when read.
P5DDR is initialized to H'F0 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting, so if a P5DDR bit is set to 1, the corresponding pin maintains its
output state in software standby mode.
Port 5 Data Register (P5DR)
P5DR is an 8-bit readable/writable register that stores output data for pins P5₃ to P5₀. When a bit
in P5DDR is set to 1, if port 5 is read the value of the corresponding P5DR bit is returned. When a
bit in P5DDR is cleared to 0, if port 5 is read the corresponding pin level is read.
Bit
7
6
5
4
3
2
1
0
—
—
—
—
P5 ₃
P5 ₂
P5 ₁
P5 ₀
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W R/W
Reserved bits
Port 5 data 3 to 0
These bits store data
for port 5 pins
Bits 7 to 4 are reserved. They cannot be modified and are always read as 1.
P5DR is initialized to H'F0 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Port 5 Input Pull-Up MOS Control Register (P5PCR)
Bit
7
6
5
4
3
2
1
0
—
—
—
— P5₃PCR P5₂PCR P5₁PCR P5₀PCR
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W R/W R/W R/W
Reserved bits
Port 5 input pull-up MOS control 3 to 0
These bits control input pull-up MOS
transistors built into port 5
P5PCR is an 8-bit readable/writable register that controls the MOS input pull-up MOS transistors
in port 5.
Rev. 3.00 Mar 21, 2006 page 264 of 814
REJ09B0302-0300