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AD9675 start code

I'd like to clarify how the AD9675 start code is overlaid onto the data stream; specifically:

  • Does the start code appear once per channel or once per lane?
  • If the latter, does it always appear on the lower channel (i.e., A on SERDOUT1, C on SERDOUT2, etc. assuming four-lane mode), upper channel, or either channel?

Thanks for your reply.