DS90UB960-Q1: FrameSync Mode:Back-channel frame clock from port 0，what is port 0

Hello,

The DS90UB960 can generate a FrameSync signal using an external reference or an internal reference. The port0 internal generated back channel means that the FrameSync signal is generated using the back channel clock of the RX port 0 as the clock reference. Port 0 is the RX0 of the deserializer where the paired serializer is connected (pins 50 and 51).