HD64F2149 Datasheet, PDF (932/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

SCMR1—Serial Interface Mode Register 1
SCMR2—Serial Interface Mode Register 2
SCMR0—Serial Interface Mode Register 0
H'FF8E
H'FFA6
H'FFDE
SCI1
SCI2
SCI0
Bit
7
6
5
4
3
2
1
0
—
—
—
—
SDIR SINV
—
SMIF
Initial value
1
1
1
1
0
0
1
0
Read/Write
—
—
—
—
R/W R/W
—
R/W
Serial communication
interface mode select
0 Normal SCI mode
1 Reserved mode
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
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