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Ibis AMI RX receiver output port eye diagram probe

Question asked by roi on Jun 17, 2018
Latest reply on Apr 11, 2019 by mike.jablin

hi michel,

I have a question to your Serdes expert and need an answer ASAP. see below:

I am currently simulating the attached simple channel in hyperlynx with Xilinx GTY transiever RX and TX IBIS-AMI files @ 6.144Gbps (


I built the setup according to xilinx example (shown in their instructions document) . they  use ADS.

when using the RX model in Hyperlynx, I cannot find ibis AMI RX equalizer (DFE) output port so I cannot capture the real behivour of the entire link at the receiver output. only receiver input pins (same as die) probes are available.

with other SWs it is possible to capture the eye diagrams at the receiver output as well as at the receiver input.

same problem occurs with the attached Ibis AMI file ( i uploaded it to this quary because its size is smaller than


Do you know what is the problem here?

do you know how can I fix it?

does it happen with other Ibis AMI files as well?