Re: [IBIS-Users] Multiple Supply voltages in IBIS


Subject: Re: [IBIS-Users] Multiple Supply voltages in IBIS
From: Senthilkumar.Kalidoss (skalidas@idt.com)
Date: Tue Jul 09 2002 - 17:53:41 PDT


    Thanking you all for your responses. In the [Pin] section of IBIS model, we have only one pair of POWER/GND recognized/present and i was wondering how the tool which uses IBIS model file, can
supply two different voltages for two different IO cells.

Senthil

Lynne Green wrote:

> Hello, Senthil,
>
> It is necessary to make two different models. The two models will
> have different values for some of the voltage keywords.
>
> The related keywords are [Voltage Range], [Pullup Reference],
> [Pulldown Reference], [POWER Clamp Reference], and
> [GND Clamp Reference].
>
> Best regards,
> Lynne
>
> Dr. Lynne Green
> Senior Member of Consulting Staff
> Cadence Design Systems, Inc.
>
> "All the world's an analog stage, whereon digital plays bit parts."
>
> -----Original Message-----
> From: Senthilkumar.Kalidoss [mailto:skalidas@idt.com]
> Sent: Tuesday, July 09, 2002 10:21 AM
> To: ibis-users@eda.org
> Subject: [IBIS-Users] Multiple Supply voltages in IBIS
>
> I have IOs working with two different supply voltages. I could specify only one sweep voltage in one xxxx.s2i file.
> I use s2ibis2.1 to generate IBIS model. Can you please suggest me whether it is possible to create only one IBIS model and how?. Or is it better to create two models for two different voltages?
> Thank you,
> -------
> Senthil
> Integrated Device Technology. Inc
>
>

--
Senthil
Internet Products Division
Integrated Device Technology. Inc
Work:408-654-6579

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