SNLS708 February 2023 DS90UB638-Q1
PRODUCTION DATA
A frame synchronization signal (FrameSync) can be sent through the back channel using any of the back channel GPIOs. The signal can be generated in two different methods. The first option offers sending the external FrameSync using one of the available GPIO pins on the DS90UB638-Q1 and mapping that GPIO to a back channel GPIO on the FPD-Link III port.
The second option is to have the DS90UB638-Q1 internally generate a FrameSync signal to send through the back channel GPIO to the attached Serializer.