h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 340
h8s-2635
Manufacturer Part Number
h8s-2635
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2635.pdf
(1547 pages)
- Current page: 340 of 1547
- Download datasheet (10Mb)
Section 9 I/O Ports
Port E Data Register (PEDR)
PEDR is an 8-bit readable/writable register that stores output data for the port E pins (PE7 to
PE0).
PEDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in
software standby mode.
Port E Register (PORTE)
Note: * Determined by state of pins PE7 to PE0.
PORTE is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of
output data for the port E pins (PE7 to PE0) must always be performed on PEDR.
If a port E read is performed while PEDDR bits are set to 1, the PEDR values are read. If a port E
read is performed while PEDDR bits are cleared to 0, the pin states are read.
After a reset and in hardware standby mode, PORTE contents are determined by the pin states, as
PEDDR and PEDR are initialized. PORTE retains its prior state in software standby mode.
Rev. 6.00 Feb 22, 2005 page 280 of 1484
REJ09B0103-0600
Bit
Initial value :
R/W
Bit
Initial value :
R/W
:
:
:
:
PE7DR
R/W
PE7
— *
R
7
0
7
PE6DR
R/W
PE6
— *
R
6
0
6
PE5DR
R/W
PE5
— *
R
5
0
5
PE4DR
R/W
PE4
— *
R
4
0
4
PE3DR
R/W
PE3
— *
R
3
0
3
PE2DR
R/W
PE2
— *
R
2
0
2
PE1DR
R/W
PE1
— *
R
1
0
1
PE0DR
R/W
PE0
— *
R
0
0
0
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