Section 15 Smart Card Interface
Rev. 5.00 May 29, 2006 page 440 of 698
REJ09B0146-0500
Retransmission by the SCI in Transmit Mode: Figure 15.10 shows the retransmission operation
in the SCI transmit mode.
1. After transmission of one frame is completed, the FER/ERS bit in SCSSR is set to 1 when a
error signal is returned from the receiving side. If the RIE bit in SCSCR is enabled at this time,
an ERI interrupt is requested. Be sure to clear the FER/ERS bit before the next parity bit is
sampled.
2. The TEND bit in SCSSR is not set in the frame that received the error signal that indicated the
error.
3. The FER/ERS bit in SCSSR is not set when no error signal is returned from the receiving side.
4. When no error signal is returned from the receiving side, the TEND bit in SCSSR is set to 1
when the transmission of the frame that includes the retransmission is considered completed. If
the TIE bit in SCSCR is enabled at this time, a TXI interrupt will be requested.
D0
Ds
D2
D1
D4
D3
D6
D5
Dp DE
D7
D0
Ds
D2
D1
D4
D3
D6
D5
Dp
(DE)
D7
D0
Ds
D2
D1
D4
D3
nth transfer frame
TEND
FER/ERS
Transfer from TDR to TRS
Transfer from TDR to TRS
Transfer from
TDR to TRS
*
1
*
2
*
4
*
3
Retransmitted frame
Transfer frame n + 1
TDRE
Notes: 1.
2.
3.
4.
This portion corresponds to the above explanation 1.
This portion corresponds to the above explanation 2.
This portion corresponds to the above explanation 3.
This portion corresponds to the above explanation 4.
Figure 15.10 Retransmission in SCI Transmit Mode
Support for Block Transfer Mode :
This smart card interface conforms to the T = 0 (character transfer) protocols of ISO/IEC7816-3.
As a result, this smart card interface does not support block transfer, in which error signals are
neither sent nor detected, and data is not automatically retransmitted.
Содержание SH7706 Series
Страница 8: ...Rev 5 00 May 29 2006 page viii of xlviii ...
Страница 160: ...Section 5 Cache Rev 5 00 May 29 2006 page 112 of 698 REJ09B0146 0500 ...
Страница 370: ...Section 11 Watchdog Timer WDT Rev 5 00 May 29 2006 page 322 of 698 REJ09B0146 0500 ...
Страница 532: ...Section 16 Serial Communication Interface with FIFO SCIF Rev 5 00 May 29 2006 page 484 of 698 REJ09B0146 0500 ...
Страница 554: ...Section 17 Pin Function Controller PFC Rev 5 00 May 29 2006 page 506 of 698 REJ09B0146 0500 ...
Страница 576: ...Section 18 I O Ports Rev 5 00 May 29 2006 page 528 of 698 REJ09B0146 0500 ...
Страница 614: ...Section 21 User Debugging Interface H UDI Rev 5 00 May 29 2006 page 566 of 698 REJ09B0146 0500 ...
Страница 746: ...Index Rev 5 00 May 29 2006 page 698 of 698 REJ09B0146 0500 ...
Страница 749: ...SH7706 Group Hardware Manual ...