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

  • From: "Walter Katz" <wkatz@xxxxxxxxxx>
  • To: "Michael Mirmak" <michael.mirmak@xxxxxxxxx>
  • Date: Tue, 10 Jul 2012 16:12:50 -0400 (EDT)

MM,

 

Of course in IBIS 6.0 the simulator can use the [External Model] IBIS-ISS
subckts in lieu of [Voltage Range], C_Comp, IV, VT and Ramp data, and the
new (as yet to be defined IBIS-ISS Package modeling. In IBIS 5.0 one can
use legacy IBIS package modeling, but this is totally inadequate for AMI
modeling.

 

Walter

 

From: Walter Katz [mailto:wkatz@xxxxxxxxxx] 
Sent: Tuesday, July 10, 2012 3:20 PM
To: Michael Mirmak
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

Phone 303.449-2308

Mobile 303.335-6156

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