The reference manual says: --- 17 di0_polarity_disp_clk DI0 Output Clock's polarity This bits define the polarity of the DI0's clock. 1 The output clock is active high 0 The output clock is active low ---
The i.MX53xD Applications Processors for Consumer Products, Rev. 4.1 datasheet says: ---- IPP_DISP_CLK latches data into the panel on its negative edge (when positive polarity is selected). ----
However, the reference manual does not explain what is high polarity or low polarity.