h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 972

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Appendix B Internal I/O Registers
SCMR1—Serial Interface Mode Register 1
SCMR2—Serial Interface Mode Register 2
SCMR0—Serial Interface Mode Register 0
Rev. 4.00 Jun 06, 2006 page 918 of 1004
REJ09B0301-0400
Bit
Initial value
Read/Write
—
—
7
1
Data transfer direction
—
—
6
1
0
1
TDR contents are transmitted LSB-first
Receive data is stored in RDR LSB-first
TDR contents are transmitted MSB-first
Receive data is stored in RDR MSB-first
—
—
5
1
Data invert
0
1
TDR contents are transmitted without modification
Receive data is stored in RDR without modification
TDR contents are inverted before being transmitted
Receive data is stored in RDR in inverted form
—
—
4
1
SDIR
R/W
H'FF8E
H'FFA6
H'FFDE
3
0
SINV
R/W
2
0
Serial communication
interface mode select
0
1
Normal SCI mode
Setting prohibited
—
—
1
1
SMIF
R/W
0
0
SCI1
SCI2
SCI0