h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 403

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

13.3.8
SCMR is a register that selects smart card interface mode and its format.
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/W
R/W

R/W
Smart Card Data Invert
Smart Card Interface Mode Select
Description
Reserved
These bits are always read as 1.
Smart Card Data Transfer Direction
Selects the serial/parallel conversion format.
0: LSB-first in transfer
1: MSB-first in transfer
The bit setting is valid only when the transfer data
format is 8 bits. For 7-bit data, LSB-first is fixed.
Specifies inversion of the data logic level. The SINV bit
does not affect the logic level of the parity bit. To invert
the parity bit, 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.
This bit is set to 1 to make the SCI operate in smart
card interface mode.
0: Normal asynchronous mode or clocked synchronous
1: Smart card interface mode
data is stored as it is in RDR
Receive data is stored in inverted form in RDR
mode
Section 13 Serial Communication Interface (SCI)
Rev. 2.00 Dec. 05, 2005 Page 365 of 724
REJ09B0200-0200