Datasheet

Appendix B Internal I/O Registers
Rev.6.00 Sep. 27, 2007 Page 1144 of 1268
REJ09B0220-0600
PORT1—Port 1 Register H'FF50 Port 1
7
P17
—*
R
6
P16
—*
R
5
P15
—*
R
4
P14
—*
R
3
P13
—*
R
0
P10
—*
R
2
P12
—*
R
1
P11
—*
R
Note: * Determined by the state of pins P1
7
to P1
0
.
State of port 1 pins
Bit
Initial value
Read/Write
:
:
:
PORT2—Port 2 Register H'FF51 Port 2
7
P27
—*
R
6
P26
—*
R
5
P25
—*
R
4
P24
—*
R
3
P23
—*
R
0
P20
—*
R
2
P22
—*
R
1
P21
—*
R
State of port 2 pins
Note: * Determined by the state of pins P2
7
to P2
0
.
Bit
Initial value
Read/Write
:
:
:
PORT3—Port 3 Register H'FF52 Port 3
7
—
Undefined
—
6
—
Undefined
—
5
P35
—*
R
4
P34
—*
R
3
P33
—*
R
0
P30
—*
R
2
P32
—*
R
1
P31
—*
R
State of port 3 pins
Note: * Determined by the state of pins P3
5
to P3
0
.
Bit
Initial value
Read/Write
:
:
: