Example 3: Trigger Command Transmission from D-PHY TX (Master) Side - 4.3 English

MIPI D-PHY LogiCORE IP Product Guide (PG202)

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4.3 English
This section describes trigger transmission operation.
  1. txrequestesc is asserted along with the trigger value in txtriggeresc[3:0].
  2. Because the PPI does not have a handshake signal to report back the trigger transmission on the serial line, txrequestesc is driven Low after 30 txclkesc clock cycles. The 30 clock cycles ensures that the MIPI D-PHY TX core transfers the trigger command on the serial line.

The following figure shows the trigger transmission operation.

Figure 1. Trigger Command Transmission from D-PHY TX (Master)