HD64F2638F20J Datasheet, PDF (1452/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Appendix B Internal I/O Register
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
ICDR0—I²C Bus Data Register
ICDR1—I²C Bus Data Register
H'FF7E
H'FF86
IIC0
IIC1
Bit
:
Initial value :
R/W
:
7
ICDR7
⎯
R/W
6
ICDR6
⎯
R/W
5
ICDR5
⎯
R/W
4
ICDR4
⎯
R/W
3
ICDR3
⎯
R/W
2
ICDR2
⎯
R/W
1
ICDR1
⎯
R/W
0
ICDR0
⎯
R/W
ICDRR
Bit
:7
6
5
4
3
2
1
0
ICDRR7 ICDRR6 ICDRR5 ICDRR4 ICDRR3 ICDRR2 ICDRR1 ICDRR0
Initial value : ⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
R/W
:R
R
R
R
R
R
R
R
ICDRS
Bit
:7
6
5
4
3
2
1
0
ICDRS7 ICDRS6 ICDRS5 ICDRS4 ICDRS3 ICDRS2 ICDRS1 ICDRS0
Initial value : ⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
R/W
:⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
ICDRT
Bit
:7
6
5
4
3
2
1
0
ICDRT7 ICDRT6 ICDRT5 ICDRT4 ICDRT3 ICDRT2 ICDRT1 ICDRT0
Initial value : ⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
R/W
:W
W
W
W
W
W
W
W
TDRE, RDRF (internal flag)
Bit
:
Initial value :
R/W
:
⎯
TDRE
0
⎯
⎯
RDRF
0
⎯
Note: This register is valid only on the H8S/2638, H8S/2639, or H8S/2630 with the I²C bus interface
option added.
Page 1402 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010