Re: [IBIS-Users] FW:


Subject: Re: [IBIS-Users] FW:
From: Robert Haller (rhaller@sisoft.com)
Date: Sun Dec 08 2002 - 18:42:21 PST


Eric,
   This can easily be done (as Arpad pointed out) utilizing the B-element
in Hspice. You can obtain excellent correlation (in the same
environment) betweem IBIS models and HSPICE native models. The 2 keys
are Accurate IBIS models and identical conditions.

 Hspice will read all the information in an IBIS model including
R,L,C_pin, C_comp (when you make a B-elemenet Call). Some vendors provide
extensions to the simple R L C models in IBIS because todays high
performance packages are better modeled as transmission lines.

Bob Haller
www.sisoft.com

> Hi All,
>
> Is there anyone ever take IBIS mode and spice netlist and use hspice to
> simulate on the same environment? I wonder maybe it is the best way to
> cross verify correlation between IBIS model and spice netlist. If it is
> possible, how can I handle R_pin, L_pin, C_pin, and C_comp those
> parameter in the ibis model? I mean should I add them into my test
> bench or not?
>
> Best Regard,
>
> Eric Hsu
>
> Senior Design Engineer of Interface Technology
> NetLogic Microsystems, Inc.
> ehsu@netlogicmicro.com
> 650-961-6676 X198
>
>
>
> -----Original Message-----
> From: Eric Hsu [mailto:ehsu@netlogicmicro.com]
> Sent: Friday, December 06, 2002 11:44 AM
> To: 'ibis-users@eda.org'; Arpad Muranyi (E-mail)
> Subject:
>
> Hi all and Arpad,
>
> Could you please share your experience about verification spice and ibis
> performance correlation? I found on page 8 of the article "I/O-buffer
> modeling spec simplifies simulation for high-speed systems"
> (http://www.eigroup.org/ibis/intel.htm), there is a figure mention about
> spice and ibis waveform comparison. Do you think it was simulated by the
> same tool? If it was, what's tool you used here? Or is anyone know
> what's the tool I can use? How about like Hyperlynx, Quad Design, or
> Interconnectix?
>
> Best Regard,
>
> Eric Hsu
>
>
>
>
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-- 
Robert Haller (rhaller@sisoft.com)
Signal Integrity Software Inc.
6 Clock Tower Place, Suite 250
Maynard, MA 01754
Phone: (978) 461-0449, ext 15

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