SPRUJB3 March 2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
The DSITX controller can support burst operation on the DPI interface provided the DPI FIFO size is large enough to store the line pixel data with enough data to not underflow. The burst operation will use a tx_byte_clk that is faster than normal event based operation, so the DPI FIFO size will be impacted by the ratio of the pixel_clk and BPP input to the tx_byte_clk and number of lanes on the output.
The recommended operation is to set the DSI HSA and DSI HFP registers to zero, and adjust the DSI HBP size to control the number of bytes prefilled in the DPI FIFO before the burst is sent.
Figure 12-556 shows DPI operation with event burst mode.