Using ADV7393 as black burst generator output on RGB or YPbPr


I have a requirement for black Burst Sync Signal generation on RGB/YPbPr output of ADV7393 Chip.

I intend to Ground the Pixel data bus and drive only the HSYNC and VSYNC signals with the 27Mhz clock.

Is there any technical difficulties here and what should be the best mode of operation of the device to set this up.

I have gone through this Q&A

I am not sure whether this issue is resolved.

Can someone give a clarification on this.?