4.2.2.6 Start/Stop Condition

All transactions to the SHA104-TFLXAUTH begin with a Start condition; therefore, a Start can only be transmitted by the host to the client. Likewise, all transactions are terminated with a Stop condition, and, thus, a Stop condition can only be transmitted by the host to the client.

The Start and Stop conditions require identical biasing of the SI/O line. The Start/Stop condition is created by holding the SI/O line at a voltage of V_PUP for a duration of t_HTSS.

The following figures depict the Start and Stop conditions.

Figure 4-10. Start Condition Waveform

Figure 4-11. Stop Condition Waveform