HD6432646 Hitachi, HD6432646 Datasheet - Page 311
HD6432646
Manufacturer Part Number
HD6432646
Description
(HD64F264x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432646.pdf
(1155 pages)
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9.12.2
Table 9-25 shows the port E register configuration.
Table 9-25 Port E Registers
Name
Port E data direction register
Port E data register
Port E register
Port E MOS pull-up control register
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.
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'FFBD
H'FE44
PE0DR
R/W
W
0
0
0
0
277
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