HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 389

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

15.3.8
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.
Receive data is stored as LSB first in RDR.
1: TDR contents are transmitted with MSB-first.
Receive data is stored as MSB first in RDR.
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/(
bit in SMR.
0: TDR contents are transmitted as they are.
Receive data is stored as it is in RDR.
1: TDR contents are inverted before being
transmitted. Receive data is stored in inverted
form in RDR.
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
Rev. 2.0, 08/02, page 349 of 788