Datasheet

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