h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 350

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 I/O Ports
9.12.2
Table 9-21 shows the port H register configuration.
Table 9-21 Port H Registers
Note: * Lower 16 bits of the address.
Port H Data Direction Register (PHDDR)
PHDDR is an 8-bit write-only register, the individual bits of which specify input or output for the
pins of port H. PHDDR cannot be read. If it is, an undefined value will be read.
PHDDR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in
software standby mode.
Port H Data Register (PHDR)
PHDR is an 8-bit readable/writeable register that stores output data for the port H pins (PH7 to
PH0).
PHDR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in
software standby mode.
Rev. 6.00 Feb 22, 2005 page 290 of 1484
REJ09B0103-0600
Name
Port H data direction register
Port H data register
Port H register
Bit
Initial value :
R/W
Bit
Initial value :
R/W
Register Configuration
:
:
:
:
PH7DDR PH6DDR PH5DDR PH4DDR PH3DDR PH2DDR PH1DDR PH0DDR
PH7DR
R/W
W
7
0
7
0
PH6DR
R/W
W
6
0
6
0
PH5DR
R/W
W
5
0
5
0
Abbreviation
PHDDR
PHDR
PORTH
PH4DR
R/W
W
4
0
4
0
PH3DR
R/W
R/W
W
RW
R
W
3
0
3
0
PH2DR
Initial Value
H'00
H'00
Undefined
R/W
W
2
0
2
0
PH1DR
R/W
W
1
0
1
0
Address *
H'FC20
H'FC24
H'FC28
PH0DR
R/W
W
0
0
0
0