SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The CSI_TX_IF provides an interrupt event to signal when the frame start (FS) and frame end (FE) packets are sent to the DPHY_TX. These events are generated on a stream basis for each virtual channel and allow a system configured to perform virtual channel interleaving to capture the events, and to derive the frame rate achieved based on the flow control and clock configuration.
The system performance will be impacted by the FIFO sizing and any flow control mechanism used by the pixel streams, so this provides a mechanism for checking that the system is scaled correctly.