1. DE Generator: The DE generator function has a limitation which limits its use in high pixel count formats. The DE_DLY and DE_CNT values are limited by DE_DLY + DE_CNT < 2047.
For resolutions where the timing allows, it may be possible to work around this limitation by using the inactive edge of HSYNC as the starting point for DE_DLY. Appropriate timing allowances may be needed for the vertical count starting location.