H8S2639 Datasheet, PDF (572/1547 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 14 Smart Card Interface
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)
Note: etu: Elementary Time Unit (time for transfer of 1 bit)
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
BCP1
0
1
Bit 2
BCP0
0
1
0
1
Description
32 clock periods
64 clock periods
372 clock periods
256 clock periods
(Initial value)
Bits 5, 4, 1, and 0: Operate in the same way as for the normal SCI. For details, see section 13.2.5,
Serial Mode Register (SMR).
Rev. 6.00 Feb 22, 2005 page 512 of 1484
REJ09B0103-0600