HD64F2638F20J Datasheet, PDF (1455/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Appendix B Internal I/O Register
SAR0—Slave Address Register
SAR1—Slave Address Register
H'FF7F
H'FF87
IIC0
IIC1
Bit
:7
6
5
4
3
2
1
0
SVA6 SVA5 SVA4 SVA3 SVA2 SVA1 SVA0 FS
Initial value : 0
0
0
0
0
0
0
0
R/W
: R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Slave address
Format select
DDCSWR
bit 6
SW
0
SAR
bit 0
FS
0
1
1
⎯
SARX
bit 0
FSX
0
1
0
1
⎯
Operating mode
I²C bus format
• SAR and SARX slave addresses recognized
I²C bus format
(initial value)
• SAR slave address recognized
• SARX slave address ignored
I²C bus format
• SAR slave address ignored
• SARX slave address recognized
Synchronous serial format
• SAR and SARX slave addresses ignored
• Must not be set.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 1405 of 1458