HD64F3048F16 Datasheet, PDF (546/903 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 14 Smart Card Interface
14.2 Register Descriptions
This section describes the new or modified registers and bit functions in the smart card interface.
14.2.1 Smart Card Mode Register (SCMR)
SCMR is an 8-bit readable/writable register that selects smart card interface functions.
Bit
7
6
5
4
3
2
1
0




SDIR SINV

SMIF
Initial value
1
1
1
1
0
0
1
0
Read/Write




R/W R/W

R/W
Reserved bits
Reserved bits
Smart card interface
mode select
Enables or disables
the smart card
interface function
Smart card data invert
Inverts data logic levels
Smart card data transfer direction
Selects the serial/parallel conversion format
SCMR is initialized to H'F2 by a reset and in standby mode.
Bits 7 to 4—Reserved: Read-only bits, always read as 1.
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
Received data is stored LSB-first in RDR
TDR contents are transmitted MSB-first
Received data is stored MSB-first in RDR
(Initial value)
Rev. 3.00 Sep 27, 2006 page 518 of 872
REJ09B0325-0300