[ibis-macro] Re: What part of Legacy IBIS is used by IBIS-AMI

  • From: "Mirmak, Michael" <michael.mirmak@xxxxxxxxx>
  • To: Walter Katz <wkatz@xxxxxxxxxx>
  • Date: Tue, 10 Jul 2012 23:06:39 +0000

Walter,



Thank you!  So, someone using IBIS-AMI models with valid traditional data in a 
workflow should expect changes in the IBIS TX C_comp or V-t (or [Ramp]) data to 
have an impact on the results provided by the receiver in an IBIS-AMI-based 
flow, assuming nothing else changes?



-          MM



From: Walter Katz [mailto:wkatz@xxxxxxxxxx]
Sent: Tuesday, July 10, 2012 12:20 PM
To: Mirmak, Michael
Cc: IBIS-ATM
Subject: What part of Legacy IBIS is used by IBIS-AMI



MM,



The Legacy part of an IBIS model is used to generate the Impulse Response of 
the channel.



One method of generating the impulse response is to do a step response, and 
take the derivative of the waveform at the Rx input.



A simulator uses a combination of the Tx [Voltage Range], C_Comp, IV, VT and 
Ramp data, and the Rx C_Comp and IV data. Of course, [External Model] can also 
be used by a simulator.



The following required Tx IBIS fields are not used in the AMI flow:

Vmeas

The following required Rx IBIS fields are not used in the AMI flow:

Vinl

Vinh



Walter





Walter Katz

wkatz@xxxxxxxxxx<mailto:wkatz@xxxxxxxxxx>

Phone 303.449-2308

Mobile 303.335-6156

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