Table of Contents
Advertisement
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
Initial value
1
Read/Write
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. *
1
Bit 3
SDIR
Description
0
TDR contents are transmitted LSB-first
Receive data is stored LSB-first in RDR
1
TDR contents are transmitted MSB-first
Receive data is stored MSB-first in RDR
6
5
1
1
Reserved bits
Section 14 Smart Card Interface
4
3
2
SDIR
SINV
1
0
0
R/W
R/W
Smart card data invert
Inverts data logic levels
Smart card data transfer direction
Selects the serial/parallel conversion format
Rev. 4.00 Jan 26, 2006 page 545 of 938
1
0
SMIF
1
0
R/W
Reserved bit
Smart card interface
mode select
Enables or disables
the smart card interface
function
(Initial value)
REJ09B0276-0400
Advertisement
Table of Contents
