h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 456

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 16 Serial Communication Interface (SCI, IrDA, and CRC)
16.3.8
SCMR selects smart card interface mode and its format.
Rev. 3.00 Jan 25, 2006 page 404 of 872
REJ09B0286-0300
Bit
7 to
4
3
2
1
0
Bit Name
—
SDIR
SINV
—
SMIF
Smart Card 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.
Smart Card 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.
Smart Card 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.
1: TDR contents are inverted before being
Reserved
This bit is always read as 1 and cannot be
modified.
Smart Card Interface Mode Select:
When this bit is set to 1, smart card interface
mode is selected.
0: Normal asynchronous or clocked synchronous
1: Smart card interface mode
Stores receive data as LSB first in RDR.
Stores receive data as MSB first in RDR.
Receive data is stored as it is in RDR.
transmitted. Receive data is stored in inverted
form in RDR.
mode