HD64F2638F20J Datasheet, PDF (567/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 14 Smart Card Interface
14.2 Register Descriptions
Registers added with the Smart Card interface and bits for which the function changes are
described here.
14.2.1 Smart Card Mode Register (SCMR)
Bit
:
7
6
5
4
3
2
1
0
—
—
—
—
SDIR SINV
—
SMIF
Initial value :
1
1
1
1
0
0
1
0
R/W
:—
—
—
—
R/W
R/W
—
R/W
SCMR is an 8-bit readable/writable register that selects the Smart Card interface function.
SCMR is initialized to H'F2 by a reset and in standby mode.
Bits 7 to 4—Reserved: These bits are always read as 1 and cannot be modified.
Bit 3—Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion
format.
Bit 3
SDIR
0
1
Description
TDR contents are transmitted LSB-first
Receive data is stored in RDR LSB-first
TDR contents are transmitted MSB-first
Receive data is stored in RDR MSB-first
(Initial value)
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 517 of 1458