DF2138AFA20 Datasheet, PDF (992/1063 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix B Internal I/O Registers
P8DDR—Port 8 Data Direction Register
H'FFBD
Port 8
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
— P86DDR P85DDR P84DDR P83DDR P82DDR P81DDR P80DDR
1
0
0
0
0
0
0
0
—
W
W
W
W
W
W
W
Specification of input or output for port 8 pins
P7PIN—Port 7 Input Data Register
H'FFBE
Port 7
Bit
Initial value
Read/Write
7
P77PIN
—*
R
6
P76PIN
—*
R
5
P75PIN
—*
R
4
P74PIN
—*
R
3
P73PIN
—*
R
2
P72PIN
—*
R
1
P71PIN
—*
R
0
P70PIN
—*
R
Port 7 pin states
Note: * Determined by state of pins P77 to P70.
P8DR—Port 8 Data Register
H'FFBF
Port 8
Bit
7
6
5
4
3
2
1
0
— P86DR P85DR P84DR P83DR P82DR P81DR P80DR
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Output data for port 8 pins
Rev. 4.00 Jun 06, 2006 page 936 of 1004
REJ09B0301-0400