669
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
Description
0
1
32 clock periods
(Initial value)
0
64 clock periods
1
1
372 clock periods
0
256 clock periods
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).