SH7708 Datasheet, PDF (424/633 Pages) Renesas Technology Corp – SuperH™ RISC engine

14.3.3 Data Format
Figure 14.3 shows the data format for the smart card interface. In this mode, parity is checked
every frame while receiving and error signals sent to the transmitting side whenever an error is
detected so that data can be re-transmitted. During transmission, error signals are sampled and data
re-transmitted whenever an error signal is detected.
With no parity error
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp
Transmitting station output
With parity error
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp
DE
Transmitting station output
Ds: Start bit
D0–D7: Data bits
Dp: Parity bit
DE: Error signal
Receiving
station output
Figure 14.3 Data Format for Smart Card Interface
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