D12320VF25IV Datasheet, PDF (1178/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix B Internal I/O Registers
PORTA—Port A Register
H'FF59
Port A
Bit
:
7
PA7
Initial value : —*
Read/Write :
R
6
5
PA6 PA5
—*
—*
R
R
4
3
2
PA4 PA3 PA2
—*
—*
—*
R
R
R
1
0
PA1 PA0
—*
—*
R
R
State of port A pins
Note: * Determined by the state of pins PA₇ to PA₀.
PORTB—Port B Register
H'FF5A
Port B
Bit
:
7
6
5
4
3
2
1
0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
Initial value : —*
—*
—*
—*
—*
—*
—*
—*
Read/Write :
R
R
R
R
R
R
R
R
State of port B pins
Note: * Determined by the state of pins PB₇ to PB₀.
PORTC—Port C Register
H'FF5B
Port C
Bit
:
7
6
5
4
3
2
1
0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Initial value : —*
—*
—*
—*
—*
—*
—*
—*
Read/Write :
R
R
R
R
R
R
R
R
State of port C pins
Note: * Determined by the state of pins PC₇ to PC₀.
Rev.6.00 Sep. 27, 2007 Page 1146 of 1268
REJ09B0220-0600