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Bit 6—Block Transfer Mode (BLK): Selects block transfer mode.
Bit 6
BLK
Description
0
Normal Smart Card interface mode operation
•
Error signal transmission/detection and automatic data retransmission performed
•
TXI interrupt generated by TEND flag
•
TEND flag set 12.5 etu after start of transmission (11.0 etu in GSM mode)
1
Block transfer mode operation
•
Error signal transmission/detection and automatic data retransmission not
performed
•
TXI interrupt generated by TDRE flag
•
TEND flag set 11.5 etu after start of transmission (11.0 etu in GSM mode)
Bits 3 and 2—Basic Clock Pulse 1 and 2 (BCP1, BCP0): These bits specify the number of basic
clock periods in a 1-bit transfer interval on the Smart Card interface.
Bit 3
Bit 2
BCP1
BCP0
0
1
0
1
1
0
Bits 5, 4, 1, and 0: Operate in the same way as for the normal SCI. For details, see section 16.2.5,
serial mode register (SMR).
Description
32 clock periods
64 clock periods
372 clock periods
256 clock periods
(Initial value)
669
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