HD6433802H Datasheet, PDF (400/435 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

PDR9—Port data register 9
H'DC
Bit
7
—
Initial value 1
Read/Write —
6
5
4
3
2
1
0
—
P9₅
P9₄
P9₃
P9₂
P9₁
P9₀
1
1
1
1
1
1
1
— R/W R/W R/W R/W R/W R/W
I/O ports
Stores data of port 9 pins
PDRA—Port data register A
H'DD
I/O ports
Bit
7
6
5
4
3
2
1
0
—
—
—
—
PA₃
PA₂
PA₁
PA₀
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Stores data of port A pins
PDRB—Port data register B
H'DE
I/O ports
Bit
7
6
5
4
3
2
1
0
—
—
—
—
PB ₃
PB ₂
PB ₁
PB ₀
Initial value
Read/Write
—
—
—
—
R
R
R
R
Reads states of port B pins
PUCR3—Port pull-up control register 3
H'E1
I/O ports
Bit
7
6
5
4
3
2
1
0
PUCR3 ₇ PUCR3₆ PUCR3₅ PUCR3₄ PUCR3₃ PUCR3₂ PUCR3₁ —
Initial value
0
0
0
0
0
0
0
—
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
W
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