Hi @DeshiL_Intel ,
Thanks for your viewpoint.
I was doing feasibility study and In my view, if there is a downspread means there will be little variation in the data rate (x ppm) induced due to the downspread. Stratix 10 Receiver tolerates -1000 to +1000 ppm variation in the incoming data as per the Stratix 10 data sheet. If the difference in ppm after downspread out of (-1000 to 1000ppm) range then I doubt the recovery will be false free.
Correct me if my understanding is wrong regarding Transceiver's receiver ppm threshold.
With Regards,
HPB