DS90UB913A-Q1: how to exercise flow control with different clock for camera sensor than the serializer

Part Number: DS90UB913A-Q1

Below is the data link for our set up

megapixel sensor -> fpga -> DS90UB913 serializer -> DS90UB934 deserializer -> TDA2x

The sensor runs at a different clock than the serializer.  What is the mechanism in the serializer for the fpga to possibly exercise flow control of the sensor data?

Can we use the HSYNC and VSYNC signals in the serializer for flow control?  If yes, are there timing diagrams to demonstrate the use of HSYNC and VSYNC for this purpose?

Thanks.

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