Subject: [IBIS-Users] RE: model issue for input receiver
From: Muranyi, Arpad (arpad.muranyi@intel.com)
Date: Wed Apr 30 2003 - 16:33:08 PDT
If the terminator model doesn't use the [Rgnd], [Rpower], [Rac], [Cac]
keywords and you add Vinh and Vinl to it, you can turn it into an input
model type.
Arpad
P.S. My first name is Arpad, not Muranyi.
=======================================================================
-----Original Message-----
From: Eric Hsu [mailto:ehsu@netlogicmicro.com]
Sent: Wednesday, April 30, 2003 4:11 PM
To: tom@teraspeed.com; Muranyi, Arpad
Cc: Ibis-Users (E-mail)
Subject: RE: model issue for input receiver
Hi Tom and Muranyi,
Do you mean there is no difference for input receiver when generating ibis model? No matter it has or not terminator resistor on chip, I always can use the same model type like input?
Thanks for your guidance!
Best Regards,
Eric Hsu
Interface Technologies
NetLogic Microsystems, Inc.
450 National Ave.
Mountain View, CA 94043
650-961-6676 x198
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> -----Original Message-----
> From: Tom Dagostino [mailto:tom@teraspeed.com]
> Sent: Wednesday, April 30, 2003 3:54 PM
> To: Eric Hsu
> Subject: RE: model issue for input receiver
>
> If you use terminator you do not have an input model but a model of a resistor. An input model is what you want with the characteristic of the on die resistor embedded in one of the clamp curves.
>
> Tom Dagostino
>
> Teraspeed Consulting Group LLC Teraspeed Consulting Group LLC
>
> 2926 SE Yamhill St. Device Modeling Division
>
> Portland, OR 97214 13610 SW Harness Lane
>
> Beaverton, OR 97008
>
> http://www.teraspeed.com 503-430-1065
>
> tom@teraspeed.com
>
> -----Original Message-----
> From: Eric Hsu [mailto:owner-ibis-users@server.eda.org] On Behalf Of Eric Hsu
> Sent: Wednesday, April 30, 2003 3:33 PM
> To: Ibis-Users (E-mail)
> Cc: Frank Dunlap
> Subject: model issue for input receiver
>
> Hi
>
> Can I choose "terminator" as my [model type] if I have an input receiver with on die terminator? If true, can I also use subparameters [Vinh] and [Vinl] to define input threshold voltage? If true, then what is the meaning of "...but has no digital logic thresholds..." for terminator model in IBIS spec. 3.2 version, page20?
>
> Best Regards,
>
> Eric Hsu
> Interface Technologies
> NetLogic Microsystems, Inc.
> 450 National Ave.
> Mountain View, CA 94043
> 650-961-6676 x198
>
> CONFIDENTIALITY NOTICE
> This message is intended only for the individual or entity to which it is
> addressed and may contain information that is privileged, confidential and
> exempt from disclosure under applicable law or contract. If you are not
> the intended recipient, or the employee or agent responsible for
> delivering the message to the intended recipient, you are hereby notified
> that any dissemination, distribution or copying of this communication is
> strictly prohibited, and we ask that you delete this message and notify us
> by return email. Thank you for your cooperation.
> This e-mail contains NetLogic Microsystems, Inc. Confidential information
>
>
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