I saw ADV7626 always sent out the black video when it received the GCP with AV_MUTE_ON from the source device. Is there any register in ADV7626 we can use, which, let ADV7626 just pass the AV Mute On to sink but do not mute/un_mute the output video to sink?
I compared two EVA boards by connecting with same source device and same sink, they were working in are different ways:
1) The ADV7626 EVA board sent black video out when it received GCP with AV_MUTE_ON from source device, but the AV_MUTE ON bits were not passed to sink.
2) The ADV7850 EVA board didn't send black video out when it received GCP with AV_MUTE_ON, but the AV_MUTE_ON bits were passed to sink.
Is it possible the ADV7626 can be configured to work in the same way as ADV7850 does with the AV_MUTE bit settings?