[SI-LIST] Re: IBIS modeling
- From: "D. C. Sessions" <si-list@xxxxxxxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Mon, 15 Oct 2001 08:48:41 -0700
On Monday 15 October 2001 08:15, BIBICHA wrote:
> Ken:
>
> It seems that W32.Sircam virus is e-mailed with the same message
> "I send you this file in order to have your advice", "See you later,
> thanks."
> I got so many of them in the past, from people that I did not know.
> I think the virus uses people's e-mails and automatically send itself
> around.
>
> What is important is to not open/delete the file.
Or better yet, use a mail client that doesn't have an identity crisis,
thinking that it's a command shell. (Also a word processor that
doesn't think it's an integrated development environment.)
Anyone checked out StarOffice 6.0 beta?
> ----- Original Message -----
> From: "Ken Cantrell" <Ken.Cantrell@xxxxxxxxxxx>
> To: <scott@xxxxxxxxxxxxxxxx>; <chris.cheng@xxxxxxxxxxxx>
> Cc: <si-list@xxxxxxxxxxxxx>
> Sent: Monday, October 15, 2001 10:48 AM
> Subject: [SI-LIST] Re: IBIS modeling
>
>
> >
> > All,!!!!
> > Norton Anti-virus just detected the W32.Sircam.worm@mm (whatever that
> means)
> > on the attachment micro vias.doc, on my incoming e-mail. My particular
> > e-mail is from someone called Joost Westland. Attached is the file on
> micro
> > vias. Wants input: "I send you this file in order to have your advice",
> > "See you later, thanks." Subject is micro vias. Delete.
> > Ken
> >
> > -----Original Message-----
> > From: si-list-bounce@xxxxxxxxxxxxx
> > [mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Scott McMorrow
> > Sent: Thursday, October 11, 2001 6:18 PM
> > To: chris.cheng@xxxxxxxxxxxx
> > Cc: si-list@xxxxxxxxxxxxx
> > Subject: [SI-LIST] Re: IBIS modeling
> >
> >
> > Chris,
> >
> > IBIS cannot handle state dependent preemphasis
> > or state dependent receiver termination. These can
> > only be simulated correctly with SPICE.
> >
> > IBIS is useful only for "vanilla" flavored LVDS drivers
> > and receivers.
> >
> > regards,
> >
> > scott
> >
> >
> > Chris Cheng wrote:
> >
> > > I am always curious about how can IBIS handle circuits
> > > like driver preemphasis or active state dependent
> > > receiver termination.
> > > Chris
> > >
> > > -----Original Message-----
> > > From: Jon Powell [mailto:jpowell@xxxxxxxxxxxx]
> > > Sent: Thursday, October 11, 2001 2:32 PM
> > > To: chris@xxxxxxxxxx; khalida@xxxxxxxxxxx
> > > Cc: si-list@xxxxxxxxxxxxx
> > > Subject: [SI-LIST] Re: IBIS modeling
> > >
> > > I have done some LVDS models and have NOT had any (good) luck
> > > in simulating them as single ended buffers.
> > > Let me re-phrase that. Most of the SPICE models that I have run do
> > > not give correct (or self-correlating) results if you don't put the
> > > series current return resistor into the LVDS circuit. If you try to
> > > simulate this resistor with a resistor to some constant node you also
> > > get bogus results. In order to get correct SPICE results you have to
> > > simulate
> > > both drivers at the same time with the correct termination.
> > >
> > > I have seen this result in 3 independent LVDS drivers from different
> > > vendors.
> > >
> > > For an example LVDS IBIS model, you might check out the National or
> Altera
> > > web pages.
> > >
> > > jon
> > >
> > > > -----Original Message-----
> > > > From: si-list-bounce@xxxxxxxxxxxxx
> > > > [mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Chris Brewster
> > > > Sent: Thursday, October 11, 2001 10:32 AM
> > > > To: khalida@xxxxxxxxxxx
> > > > Cc: si-list@xxxxxxxxxxxxx
> > > > Subject: [SI-LIST] Re: IBIS modeling
> > > >
> > > >
> > > > Khalid,
> > > >
> > > > Most of the information describes the process for extraction
> > > > of a Single
> > > > Ended buffer. With LVDS, you have to treat each output as if
> > > > it were a
> > > > single ended buffer and then combine them to create a
> > > > differential model.
> > > >
> > > > The literature from the IBIS summit by Hegazy is a good place
> > > > to start.
> > > >
> > > > http://www.eda.org/pub/ibis/summits/jan01/hegazy.zip
> > > >
> > > > regards,
> > > >
> > > > -Chris
> > > >
> > > >
> > > > At 09:01 AM 10/11/2001 -0700, Khalid Ansari wrote:
> > > >
> > > > >Hi all,
> > > > >
> > > > >I am looking to create IBIS models for my LVDS I/Os. I already
> > > > >have Hspice models created. Is there any good literature on how
> > > > >to create IBIS models out of Hspice models. I haven't had a chance
> > > > >to work with IBIS in the past so any introductory literature will be
> > > > >helpful. I guess the IBIS version I will be using is 3.2
> > > > with scripts
> > > > >created by North Carolina State University.
> > > > >
> > > > >Thanks in advance,
> > > > >Khalid
> > > > >
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> >
> > --
> > Scott McMorrow
> > Principal Engineer
> > SiQual, Signal Quality Engineering
> > 18735 SW Boones Ferry Road
> > Tualatin, OR 97062-3090
> > (503) 885-1231
> > http://www.siqual.com
> >
> >
> >
> >
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--
| The race is not always to the swift, nor the battle to the strong. |
| Because the slow, feeble old codgers like me cheat. |
+--------------- D. C. Sessions <dcs@xxxxxxxxxxxxxxxx> --------------+
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