I am trying to incorporate an ADV7401 into a design for doing some video conversion. I am currently playing with a 7401 eval kit to familiarize myself with the registers and the general function of the chip.
My problem: When I power off the eval kit, the register entries I programmed are lost. When I reboot the eval kit I have to re-enter all of my registers to resume desired functionality. This behaviour is undesirable for my design as the default register values do not suit my design.
My question: Does this chip have onboard memory in the form of a ROM/PROM, or is this chip typically paired with an external PROM attached to the I2C bus?
I have looked in the design manual and can't find any evidence of onboard memory... I hope I just missed something.
If the 7401 needs to be written to every time it powers up I can do that through an FPGA already in the design but I wanted to post here for some ideas first.
Any help is greatly appreciated!