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DP83869HM: IBIS model simulation.

Part Number: DP83869HM


Tool/software:

Dear team, 

Currently, my customer are using DP83869HM for their communication application. 

The customer would like to compare copper interface(TD_P_x / TD_M_x) and Fiber interface (SON/SOP/SIP/SIN) using IBIS model. 

But as you can see below, Fiber interface port is assigned "diff_out" model but copper interface is NC. 

1. Why copper interface is NC?  "diff_out" model is only for SGMII? 

2. Can we compare copper signal and fiber signal for the same input using IBIS model? 

Thank you.