h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 308
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
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Section 9 I/O Ports
9.12.2
Table 9.25 shows the port E register configuration.
Table 9.25 Port E Registers
Note: * Lower 16 bits of the address.
Port E Data Direction Register (PEDDR)
PEDDR is an 8-bit write-only register, the individual bits of which specify input or output for the
pins of port E. PEDDR cannot be read; if it is, an undefined value will be read.
PEDDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state by
a manual reset or in software standby mode.
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.
Rev. 5.00 Sep 22, 2005 page 282 of 1136
REJ09B0257-0500
Name
Port E data direction register
Port E data register
Port E register
Port E MOS pull-up control register
Bit
Initial value :
R/W
Bit
Initial value :
R/W
Register Configuration
:
:
:
:
PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR
PE7DR
R/W
W
7
0
7
0
PE6DR
R/W
W
6
0
6
0
PE5DR
Abbreviation
PEDDR
PEDR
PORTE
PEPCR
R/W
W
5
0
5
0
PE4DR
R/W
W
4
0
4
0
R/W
W
R/W
R
R/W
PE3DR
R/W
W
3
0
3
0
Initial Value
H'00
H'00
Undefined
H'00
PE2DR
R/W
W
2
0
2
0
PE1DR
R/W
W
1
0
1
0
Address *
H'FE3D
H'FF0D
H'FE44
H'FFBD
PE0DR
R/W
W
0
0
0
0
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