D12320VF25IV Datasheet, PDF (712/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 15 Smart Card Interface
15.3.3 Data Format
Normal Transfer Mode: Figure 15.3 shows the smart card interface data format in the normal
transfer mode. In reception in this mode, a parity check is carried out on each frame. If an error is
detected an error signal is sent back to the transmitting end, and retransmission of the data is
requested. If an error signal is sampled during transmission, the same data is retransmitted.
When there is no parity error
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp
Transmitting station output
When a parity error occurs
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp
DE
Transmitting station output
Legend:
Ds:
Start bit
D0 to D7: Data bits
Dp:
Parity bit
DE:
Error signal
Receiving station
output
Figure 15.3 Smart Card Interface Data Format
Rev.6.00 Sep. 27, 2007 Page 680 of 1268
REJ09B0220-0600