h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 277

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

12.3.8
SCMR selects SCI functions and its format.
Bit
7 to 4
3
2
1
0
Bit Name
—
SDIR
SINV
—
SMIF
Serial Interface Mode Register (SCMR)
Initial
Value
All 1
0
0
1
0
R/W
R
R/W
R/W
R
R/W
Description
Reserved
These bits are always read as 1 and cannot be
modified.
Data Transfer Direction
Selects the serial/parallel conversion format.
0: TDR contents are transmitted with LSB-first.
1: TDR contents are transmitted with MSB-first.
The SDIR bit is valid only when the 8-bit data format is
used for transmission/reception; when the 7-bit data
format is used, data is always transmitted/received with
LSB-first.
Data Invert
Specifies inversion of the data logic level. The SINV bit
does not affect the logic level of the parity bit. When
the parity bit is inverted, invert the O/E bit in SMR.
0: TDR contents are transmitted as they are. Receive
1: TDR contents are inverted before being transmitted.
Reserved
This bit is always read as 1 and cannot be modified.
Serial Communication Interface Mode Select:
0: Normal asynchronous or clocked synchronous mode
1: Reserved mode
Receive data is stored as LSB first in RDR.
Receive data is stored as MSB first in RDR.
data is stored as it is in RDR.
Receive data is stored in inverted form in RDR.
Rev. 1.00, 05/04, page 243 of 544