From: owner-ibis-users@eda.org (ibis-users)
To: ibis-users-digest@eda.org
Subject: ibis-users V1 #74
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ibis-users         Wednesday, January 18 2006         Volume 01 : Number 074




----------------------------------------------------------------------

Date: Wed, 4 Jan 2006 08:57:10 -0800
From: "Muranyi, Arpad" <arpad.muranyi@intel.com>
Subject: [IBIS-Users] RE: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads

Andy,

I think he is saying that the oscillations happen
because of the feedback in the buffer is trying to
settle to a steady state condition.

If so, legacy IBIS can not model your buffer, since
there are no provisions for describing feedback.

Arpad
- ---------------------------------------------------

- -----Original Message-----
From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of Andrew Ingraham
Sent: Wednesday, January 04, 2006 8:49 AM
To: ibis-users@eda.org; ibis@eda.org
Subject: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads

Vinayak wrote:

> We have this case where in the *buffer has feedback* and with R-load we see
> V-T table with lot of ringing(oscillations) when pad has reached steady
> state.
> As this is no real situation for us as TL delay that buffer would see in
> real world is too small
> comparable to buffer tr/tf.

I think you are saying that you get these oscillations in your simulations
with the SPICE model that you used to create your IBIS model; and that you
see them only in simulations, not real devices.

If that is correct, then I'd investigate why the oscillations happen, and
fix it.  It isn't just because your buffer has feedback, because real
devices also have feedback and they don't oscillate.

SPICE is known to occasionally have numeric oscillations when it should be
steady-state, which can be fixed by changing to Method=Gear.

Oscillations can also happen because things are missing in the SPICE
simulation, device models are too ideal and lack resistance, etc.

If, on the other hand, your buffer really does oscillate when loaded this
way, then you've got a different problem.  One fix (not necessarily good)
would be to truncate the V/T data just before the oscillations start,
and/or smooth out the tail so it approaches the correct final value.

Regards,
Andy


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------------------------------

Date: Wed, 4 Jan 2006 10:11:01 -0700
From: "Helliwell, Kim" <Kim.Helliwell@lsil.com>
Subject: [IBIS-Users] RE: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads

I'd like to add a bit to Andy's response, where he says:

- -----Original Message-----
SPICE is known to occasionally have numeric oscillations when it should
be
steady-state, which can be fixed by changing to Method=Gear.

- ------------------------==

The numeric oscillations that can be cured by METHOD=GEAR are
very distinctive: they look like a sawtooth wave in which the
timepoints oscillate between two values (this behavior sometimes
will damp out over time, but usually will continue between exactly
the same two values). The key characteristic is the
sawtooth wave pattern with only two timepoints per period. If
you have an oscillation that looks like a sawtooth (or just a
high frequency ringing) but with more than two timepoints defining
one period of the ringing, this won't be helped by changing the
integration method.

By the way, this sawtooth pattern is called "Trap ringing" because
it's a characteristic of the trapezoidal integration method SPICE
uses by default.


Kim



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------------------------------

Date: Wed, 4 Jan 2006 09:14:19 -0800
From: "Muranyi, Arpad" <arpad.muranyi@intel.com>
Subject: RE: [IBIS] RE: [IBIS-Users] hspice vs IBIS model correlation at different capacitive loads

Vinayak,

In addition to my previous reply, that IBIS is not
able to describe any feedback mechanisms inside
the buffer, let me explain what the fundamental
problem is with reactive loads with IBIS models.

1)  The concept of using I-V and V-t curves in the
models is based on the idea that the V-t curve can
be used as a time variant scaling coefficient on
the I-V curves.  In other words, a falling edge
waveform could mean that at its beginning the PD
transistor (or its I-V curve) is completely OFF,
and at its end it is completely ON.  This means
that you would multiply the PD I-V curve with 0
or 1, respectively.  All other points on the
waveform can be converted to numbers which are
usually between 0 and 1.

However, a falling edge could also mean that the
at its beginning the PU transistor is full ON, and
at the end the PU transistor is fully OFF.

2)  This is why an IBIS model which has a PU and
PD should have at least two rising and two falling
waveforms.  That way you have two unknowns (the
Kpu and Kpd scaling coefficient tables) and two
knowns (the two V-t tables) which can be solved
easily.

3)  The solution comes from writing a sum of the
currents equation:

            Ipu = Ipd + Iout

where Iout = (Vout-Vfixture)/Rfixture.  Vout is
basically your V-t tables, and the rest are the
conditions at which the waveform was generated.

4)  Theoretically the load doesn't have to be
resistive, you could have L and C, but if you
did that the equation would become a differential
equation including dI/dt and dV/dt.

5)  If tool vendors implement the above equation
without accounting for dV/dt and dI/dt, you will
start seeing significant miscorrelations when
your load is strongly reactive.

6)  This is not a problem when the buffer is loaded
with transmission lines, because they look like a
resistive load.  However, as soon as you start using
AC coupling (series capacitors between the buffer
and the T-line) or other reactive loads, you will
be in trouble.

I hope this helps.

Arpad
- -----------------------------------------------------


- -----Original Message-----
From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On Behalf Of Vinayak Ghatawade
Sent: Tuesday, January 03, 2006 11:21 PM
To: tom@teraspeed.com
Cc: ibis-users@eda.org; ibis@eda.org
Subject: Re: [IBIS] RE: [IBIS-Users] hspice vs IBIS model correlation at different capacitive loads

Tom,
Thanks for the reply.

Buffer for which IBIS is been generated will be used
with a shorter transmission line in which case c effect is more
pronounced than r-load effect. There is no termination in this case at the
recieving end since we are making sure the buffer will be used
with shorter trace.

Can we define transmission line load for V-T. The current V-T data that
we have generated has oscillations due to adaptive behaviour of the 
buffer since
this is not real case (might happen with longer trace).

Thanks again
vinayak

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------------------------------

Date: Wed, 4 Jan 2006 12:30:51 -0500
From: "Andrew Ingraham" <a.ingraham@ieee.org>
Subject: [IBIS-Users] Re: hspice vs IBIS model correlation at different capacitive loads

> I think he is saying that the oscillations happen
> because of the feedback in the buffer is trying to
> settle to a steady state condition.
>
> If so, legacy IBIS can not model your buffer, since
> there are no provisions for describing feedback.

Yes.

Although it depends on the feedback.

Linear negative feedback, such as used on op-amps to reduce output
impedance, should work OK, I think.  It's probably also possible that some
forms of feedback to reduce variations in drive strength (for example),
ought to be somewhat compatible with conventional IBIS.  But things like
positive feedback to give hysteresis, don't play well in IBIS.

Regards,
Andy


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------------------------------

Date: Wed, 4 Jan 2006 11:38:14 -0600
From: <Aubrey_Sparkman@dell.com>
Subject: RE: [IBIS-Users] Re: hspice vs IBIS model correlation at different capacitive loads

But it could be a problem with the way the IBIS model was made.

Vinayak, have you tested your IBIS model in any other simulators?  I
once had a model that worked in Cadence tools, but oscillated with
HSPICE.  I had to add some extra data points in the VI data to stop the
oscillations.


Aubrey Sparkman 
Enterprise Engineering Signal Integrity Team
Dell, Inc. 
Aubrey_Sparkman@Dell.com 
(512) 723-3592

- -----Original Message-----
From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On
Behalf Of Andrew Ingraham
Sent: Wednesday, January 04, 2006 11:31 AM
To: ibis-users@eda.org; ibis@eda.org
Subject: [IBIS-Users] Re: hspice vs IBIS model correlation at different
capacitive loads

> I think he is saying that the oscillations happen because of the 
> feedback in the buffer is trying to settle to a steady state 
> condition.
>
> If so, legacy IBIS can not model your buffer, since there are no 
> provisions for describing feedback.

Yes.

Although it depends on the feedback.

Linear negative feedback, such as used on op-amps to reduce output
impedance, should work OK, I think.  It's probably also possible that
some forms of feedback to reduce variations in drive strength (for
example), ought to be somewhat compatible with conventional IBIS.  But
things like positive feedback to give hysteresis, don't play well in
IBIS.

Regards,
Andy


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------------------------------

Date: Wed, 4 Jan 2006 09:53:37 -0800
From: "Muranyi, Arpad" <arpad.muranyi@intel.com>
Subject: [IBIS-Users] RE: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads

Andy,

You are absolutely correct, there are different
types of feedbacks, and I should have defined
which one I was referring to in my posting...

I was thinking of one that adjusts the drive
strength real time as the buffer is switching.
Legacy IBIS can't do that.  (Although one could
model these too using the *-AMS extensions of
IBIS).

On the other hand, buffers which adjust their
own drive strength only once and a while to
compensate for temperature variations, for
example, can be modeled in IBIS as if they were
normal buffers, because they don't change skins
while driving signals onto the bus.  You may
need the [Model Selector] keyword to make a
few different driver models available for the
various strengths, but that's all.

Arpad
- ------------------------------------------------

- -----Original Message-----
From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of Andrew Ingraham
Sent: Wednesday, January 04, 2006 9:31 AM
To: ibis-users@eda.org; ibis@eda.org
Subject: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads

> I think he is saying that the oscillations happen
> because of the feedback in the buffer is trying to
> settle to a steady state condition.
>
> If so, legacy IBIS can not model your buffer, since
> there are no provisions for describing feedback.

Yes.

Although it depends on the feedback.

Linear negative feedback, such as used on op-amps to reduce output
impedance, should work OK, I think.  It's probably also possible that some
forms of feedback to reduce variations in drive strength (for example),
ought to be somewhat compatible with conventional IBIS.  But things like
positive feedback to give hysteresis, don't play well in IBIS.

Regards,
Andy

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------------------------------

Date: Wed, 4 Jan 2006 13:17:18 -0500
From: al davis <ad105@freeelectron.net>
Subject: [IBIS-Users] Re: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads

On Wednesday 04 January 2006 12:11 pm, Helliwell, Kim wrote:
> The numeric oscillations that can be cured by METHOD=GEAR are
> very distinctive: they look like a sawtooth wave in which the
> timepoints oscillate between two values (this behavior
> sometimes will damp out over time, but usually will continue
> between exactly the same two values). The key characteristic
> is the
> sawtooth wave pattern with only two timepoints per period. If
> you have an oscillation that looks like a sawtooth (or just a
> high frequency ringing) but with more than two timepoints
> defining one period of the ringing, this won't be helped by
> changing the integration method.
>
> By the way, this sawtooth pattern is called "Trap ringing"
> because it's a characteristic of the trapezoidal integration
> method SPICE uses by default.

This is true of the internal data, but SPICE re-interpolates the 
output data before showing it to the user.  This 
re-interpolation will mask this distinctive appearance.

Also.....

In some models, the specified tables are contaminated by 
trap-ringing.  Then when you simulate with similar improper 
settings, you get trap ringing again, asynchronous with the 
original.  You get the sum of two sawtooths, but probably don't 
recognize it as such, especially when it is further 
contaminated by re-interpolation, which may happen twice.

There's another one that happens as an artifact of de-embedding 
c_comp and c_fixture.  The de-embedding can suffer from 
trap-ringing.  Even if it doesn't, the artifacts of re-sampling 
can have sort of a sawtooth appearance.
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------------------------------

Date: Wed, 4 Jan 2006 10:56:56 -0800
From: "Lynne D. Green" <lgreen22@mindspring.com>
Subject: RE: [IBIS] RE: [IBIS-Users] hspice vs IBIS model correlation at different capacitive loads

Hello, Vinayak,

Did you generate your IBIS model using a resistor load in SPICE? Or, did you
perhaps use a short transmission line with Z0, such as will be used in the
actual circuit?

Using a circuit load can cause ringing/oscillations in V-t tables.

Best regards,
Lynne


"IBIS training when you need it, where you need it."

Dr. Lynne Green
Green Streak Programs
http://www.greenstreakprograms.com
425-788-0412
lgreen22@mindspring.com


- -----Original Message-----
From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On Behalf
Of Vinayak Ghatawade
Sent: Tuesday, January 03, 2006 11:21 PM
To: tom@teraspeed.com
Cc: ibis-users@eda.org; ibis@eda.org
Subject: Re: [IBIS] RE: [IBIS-Users] hspice vs IBIS model correlation at
different capacitive loads

Tom,
Thanks for the reply.

Buffer for which IBIS is been generated will be used with a shorter
transmission line in which case c effect is more pronounced than r-load
effect. There is no termination in this case at the recieving end since we
are making sure the buffer will be used with shorter trace.

Can we define transmission line load for V-T. The current V-T data that we
have generated has oscillations due to adaptive behaviour of the buffer
since this is not real case (might happen with longer trace).

Thanks again
vinayak



Tom Dagostino wrote:

>I've been given many models to "fix" that had a C_fixture in them.
>Universally, these models showed poor transient response into resistive 
>loads and had even worse problems trying to drive a reactive load.  I 
>would strongly recommend not to use a C_fixture in any model.
>
>If your transmission line's length is on the order of Tr/Tf then you 
>are really into the range where you will see transmission line effects.  
>If this line is not terminated then I would expect to see a lot of 
>ringing in the simulations.
>
>You need to understand why you are seeing the ringing and proceed from 
>there.
>
>Tom Dagostino
>Teraspeed(R) Labs
>13610 SW Harness Lane
>Beaverton, OR 97008
>503-430-1065
>tom@teraspeed.com
>www.teraspeed.com
>
>Teraspeed Consulting Group LLC
>121 North River Drive
>Narragansett, RI 02882
>401-284-1827
>
>-----Original Message-----
>From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org]On
>Behalf Of Vinayak Ghatawade
>Sent: Tuesday, January 03, 2006 10:07 PM
>To: ibis-users@eda.org; ibis@eda.org
>Subject: Re: [IBIS] RE: [IBIS-Users] hspice vs IBIS model correlation 
>at different capacitive loads
>
>
>Hi all,
>
>I had this query where in if the buffer is going to be used for shorter 
>TL (transmission line) then do we need to generate the V-T data with 
>C-load rather than R-load since the buffer rise time is comparable to 
>TL delay.
>
>We have this case where in the *buffer has feedback* and with R-load we 
>see V-T table with lot of ringing(oscillations) when pad has reached 
>steady state.
>As this is no real situation for us as TL delay that buffer would see 
>in real world is too small comparable to buffer tr/tf.
>
>How do we generate the V-T data in this case. Should we use C-load 
>instead of R-load or we release the V-T data with some oscillations 
>when pad reaches steady state. Does simulator really have a problem 
>seeing such V-T data.
>
>Thanks
>vinayak
>
>Ummalaneni, Venu Babu (Venu) wrote:
>
>  
>
>>Itzik Peleg and all,
>>
>>
>>
>>Thank you very much for your help. Please see my answers in line with 
>>your
>>    
>>
>comments.
>  
>
>>
>>1. This buffer operation is intended for a load resistance of more 
>>than 5k
>>    
>>
>ohm.
>  
>
>>2. Yes, you are right. I should allow more transient simulation time 
>>for
>>    
>>
>min corner.
>  
>
>>However, reported behavior (correlation of hspice vs IBIS) is for typ
>>    
>>
>corner.
>  
>
>>
>>Even I have tried with 50, 100, 500 & 5k ohm terminations for 
>>capturing V-t
>>    
>>
>waveforms. But I could not see any improvement in the correlation. I am 
>still investigating this issue.
>  
>
>>
>>
>>
>>                Thanks & Best Regards,
>>
>>Venu
>>
>>-----Original Message-----
>>*From:* Itzik Peleg [mailto:itzikpe@marvell.com]
>>*Sent:* Thursday, December 15, 2005 7:09 PM
>>*To:* Ummalaneni, Venu Babu (Venu); ibis-users@eda.org; ibis@eda.org
>>*Subject:* RE: [IBIS] RE: [IBIS-Users] hspice vs IBIS model 
>>correlation at different capacitive loads
>>
>>Hello Venu
>>
>>Here are my comments reviewing your model:
>>
>>1. The loading condition is 1k ohm !? isn't this buffer should be used 
>>in 50 ohm environment? If the answer is yes then you should use 50 ohm.
>>
>>2. It seems like the slow didn't finish the complete transition. You 
>>should allow more time for the V(t) simulation in order that the 
>>response get to steady state (like the maximum case in red). This also 
>>causing the warning that you have when using IBIS check:
>>
>>**************************************************************
>>
>>WARNING - Model ATA4N1K000: The [Rising Waveform]
>>
>>with [R_fixture]=1000 Ohms and [V_fixture_min]=0V
>>
>>has MIN column DC endpoints of 0.00V and 2.78v, but
>>
>>an equivalent load applied to the model's I-V tables yields
>>
>>different voltages (-0.00V and 2.92V),
>>
>>a difference of 0.00% and 4.69%, respectively.
>>
>>WARNING - Model ATA4N1K000: The [Falling Waveform]
>>
>>with [R_fixture]=1000 Ohms and [V_fixture_min]=3V
>>
>>has MIN column DC endpoints of 0.21V and 3.00v, but
>>
>>an equivalent load applied to the model's I-V tables yields
>>
>>different voltages ( 0.05V and 3.00V),
>>
>>a difference of 5.54% and 0.00%, respectively.
>>
>>****************************************************************
>>
>>3. Based on the 2 previous points I can think of a buffer for slow 
>>interface that should be used in 50 ohm environment. If this is the 
>>case you should allow the transient simulation more time on 50 ohm.
>>
>>Hope this will halp.
>>
>>--
>>
>>Regards
>>
>>
>>
>>Itzik Peleg
>>
>>Board Technology Group
>>
>>
>>
>>Marvell Semiconductor Israel Ltd
>>
>>6 Hamada Street
>>
>>
>>
>>
>>Mordot HaCarmel Industrial Park
>>
>>
>>
>>Yokneam 20692, ISRAEL
>>
>>
>>
>>Email - itzikpe@marvell.com <mailto:itzikpe@marvell.com>
>>
>>Tel   - +972 4  9091192
>>
>>Cell  - +972 54 4452482
>>
>>Fax   - +972 4  9091501
>>
>>WWW Page: http://www.marvell.com <BLOCKED::http://www.marvell.com>
>>
>>======================================================================
>>==
>>
>>This message may contain confidential, proprietary or legally 
>>privileged
>>
>>information. The information is intended only for the use of the
>>
>>individual or entity named above. If the reader of this message is not
>>
>>the intended recipient, you are hereby notified that any 
>>dissemination,
>>
>>distribution or copying of this communication is strictly prohibited.
>>
>>If you have received this communication in error, please notify us
>>
>>immediately by telephone, or by e-mail and delete the message from
>>
>>your computer.
>>
>>
>>
>>Thank you!
>>
>>======================================================================
>>==
>>
>>----------------------------------------------------------------------
>>--
>>
>>*From:* Ummalaneni, Venu Babu (Venu) [mailto:venubabu@agere.com]
>>*Sent:* Thursday, December 15, 2005 1:07 PM
>>*To:* Itzik Peleg; Todd Westerhoff (twesterh); ibis-users@eda.org; 
>>ibis@eda.org
>>*Subject:* RE: [IBIS] RE: [IBIS-Users] hspice vs IBIS model 
>>correlation at different capacitive loads
>>
>>Itzik Peleg,
>>
>>
>>
>>Thanks for your concern. I think there is no such feedback.
>>
>>
>>
>>Here, I am attaching the IBIS model.
>>
>>
>>
>>Thanks & Regards,
>>
>>Venu
>>
>>-----Original Message-----
>>*From:* Itzik Peleg [mailto:itzikpe@marvell.com]
>>*Sent:* Wednesday, December 14, 2005 12:50 PM
>>*To:* Ummalaneni, Venu Babu (Venu); Todd Westerhoff (twesterh); 
>>ibis-users@eda.org; ibis@eda.org
>>*Subject:* RE: [IBIS] RE: [IBIS-Users] hspice vs IBIS model 
>>correlation at different capacitive loads
>>
>>Hello Venu
>>
>>Just to add one more possibility doe's your buffer has a feedback?
>>
>>Could you attached the IBIS model, or show the I(V) and V(t) curves?
>>
>>--
>>
>>Regards
>>
>>
>>
>>Itzik Peleg
>>
>>Board Technology Group
>>
>>
>>
>>Marvell Semiconductor Israel Ltd
>>
>>6 Hamada Street
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>Mordot HaCarmel Industrial Park
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>Yokneam 20692, ISRAEL
>>
>>
>>
>>Email - itzikpe@marvell.com <mailto:itzikpe@marvell.com>
>>
>>Tel   - +972 4  9091192
>>
>>Cell  - +972 54 4452482
>>
>>Fax   - +972 4  9091501
>>
>>WWW Page: http://www.marvell.com <BLOCKED::http://www.marvell.com>
>>
>>======================================================================
>>==
>>
>>This message may contain confidential, proprietary or legally 
>>privileged
>>
>>information. The information is intended only for the use of the
>>
>>individual or entity named above. If the reader of this message is not
>>
>>the intended recipient, you are hereby notified that any 
>>dissemination,
>>
>>distribution or copying of this communication is strictly prohibited.
>>
>>If you have received this communication in error, please notify us
>>
>>immediately by telephone, or by e-mail and delete the message from
>>
>>your computer.
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>>
>>Thank you!
>>
>>======================================================================
>>==
>>
>>----------------------------------------------------------------------
>>--
>>
>>*From:* owner-ibis@eda.org [mailto:owner-ibis@eda.org] *On Behalf Of 
>>*Ummalaneni, Venu Babu (Venu)
>>*Sent:* Tuesday, December 13, 2005 2:49 PM
>>*To:* Todd Westerhoff (twesterh); ibis-users@eda.org; ibis@eda.org
>>*Subject:* [IBIS] RE: [IBIS-Users] hspice vs IBIS model correlation at 
>>different capacitive loads
>>
>>Todd,
>>
>>Thanks for your inputs.
>>
>>I have verified the programming options of driver and it's fine. Here, 
>>I am attaching the correlation waveforms of the simulations by using a
>>0.1 ohm resistor instead of transmission line in both load (5pF &
>>30pF) cases. Still, I am seeing a bad correlation in 30pF case.
>>
>>Please ignore my previously attached *.PDF.
>>
>>Once again thanks for your response.
>>
>>Best Reagrds,
>>
>>Venu
>>
>>-----Original Message-----
>>*From:* Todd Westerhoff (twesterh) [mailto:twesterh@cisco.com]
>>*Sent:* Tuesday, December 13, 2005 5:43 PM
>>*To:* Ummalaneni, Venu Babu (Venu); ibis-users@eda.org; ibis@eda.org
>>*Subject:* RE: [IBIS-Users] hspice vs IBIS model correlation at 
>>different capacitive loads
>>
>>Venu,
>>
>>How long is the transmission line you're using ... about 1ns?
>>
>>Your IBIS driver in the 30pf case seems to be taking several 
>>round-trips to charge the load where the HSpice driver doesn't - if 
>>this is a programmable driver, is it possible the driver settings for 
>>the two plots are different? In the top plot for the 30pf case, the 
>>IBIS driver looks like a much weaker output with a faster slew rate to 
>>me ...
>>
>>Todd.
>>
>>
>>Todd Westerhoff
>>High Speed Design Group Manager
>>Cisco Systems
>>1414 Massachusetts Ave
>>Boxboro, MA 01719
>>email:twesterh@cisco.com
>>ph: 978-936-2149
>>____________________________________________
>>"Always do right.
>>This will gratify some people and astonish the rest."
>>
>>- Mark Twain
>>
>>----------------------------------------------------------------------
>>--
>>
>>*From:* owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] *On 
>>Behalf Of *Ummalaneni, Venu Babu (Venu)
>>*Sent:* Tuesday, December 13, 2005 5:38 AM
>>*To:* ibis-users@eda.org; ibis@eda.org
>>*Subject:* [IBIS-Users] hspice vs IBIS model correlation at different 
>>capacitive loads
>>
>>Hi Gurus,
>>
>>I have an ATA* IBIS model and it is correlating well with hspice model 
>>when I am using a 5pF load followed by a transmission line. If I 
>>replace the 5pF load with 30pF correlation is bad (particularly in 
>>2^nd page waveform of attached PDF).
>>
>>Could some one comment on this, where it is going wrong?
>>
>>Your comments/inputs are highly appreciated.
>>
>>Attachments: ata4nik_5pf.pdf - hspice and IBIS model waveforms 
>>captured using 5pF load
>>
>>ata4nik_30pf.pdf - hspice and IBIS model waveforms captured using 30pF 
>>load
>>
>>Thanks & Best Regards,
>>
>>Venu
>>
>><<ata4n1k_30pf.pdf>> <<ata4n1k_5pf.pdf>>
>>
>>    
>>
>
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------------------------------

Date: Wed, 4 Jan 2006 23:23:25 -0800
From: "Lynne D. Green" <lgreen22@mindspring.com>
Subject: [IBIS-Users] RE: [IBIS] how to create the ibis of gigabit ethernet??

This is a multi-part message in MIME format.

- ------=_NextPart_000_0009_01C61185.E02BD790
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	charset="us-ascii"
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Hi, Tina,
 
This depends on what you mean by "levels".
 
If you mean 5 drive strength options, but no change in drive strength option
during a transition, then usually one IBIS model is created for each drive
strength.
 
If you mean 5 different drive strengths used during one transition (such as
a buffer with internal feedback), then table-based IBIS modeling probably
would not be suitable.  In this case, one could consider IBIS 4.1, with an
AMS or SPICE language option.
 
Best regards,
Lynne
 
 
"IBIS training when you need it, where you need it."
 
Dr. Lynne Green
Green Streak Programs
http://www.greenstreakprograms.com
425-788-0412
lgreen22@mindspring.com


  _____  

From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of ???
Sent: Wednesday, January 04, 2006 9:44 PM
To: ibis-users@eda.org; ibis@eda.org
Subject: [IBIS] how to create the ibis of gigabit ethernet??


Hi All,
    I like to create the ibis file of gigabit ethernet. The output waveform
has 5 levels.
I don't know how to create this ibis file?? Could you give me some
comments?? 
Thanks in advance!!
 
Best Regards
Tina


- ------=_NextPart_000_0009_01C61185.E02BD790
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<META content=3D"MSHTML 6.00.2900.2722" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Hi, Tina,</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>This depends on what you mean by=20
"levels".</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>If you mean 5 drive strength options, but no =
change in=20
drive strength option&nbsp;during a transition, then usually one IBIS =
model is=20
created for each drive strength.</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>If you mean 5 different drive strengths used =
during one=20
transition (such as a buffer with internal feedback), then table-based =
IBIS=20
modeling probably would not be suitable.&nbsp; In this case, one could =
consider=20
IBIS 4.1, with an AMS or SPICE language option.</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Best regards,</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Lynne</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>"IBIS training when you need it, where you need =

it."</FONT></SPAN></DIV>
<DIV>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Dr. Lynne Green<BR>Green Streak Programs<BR><A=20
href=3D"http://www.greenstreakprograms.com">http://www.greenstreakprogram=
s.com</A><BR>425-788-0412<BR><A=20
href=3D"mailto:lgreen22@mindspring.com">lgreen22@mindspring.com</A></FONT=
></SPAN></DIV><BR>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
  <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
  <HR tabIndex=3D-1>
  <FONT face=3DTahoma size=3D2><B>From:</B> owner-ibis@eda.org=20
  [mailto:owner-ibis@eda.org] <B>On Behalf Of </B>???<BR><B>Sent:</B> =
Wednesday,=20
  January 04, 2006 9:44 PM<BR><B>To:</B> ibis-users@eda.org;=20
  ibis@eda.org<BR><B>Subject:</B> [IBIS] how to create the ibis of =
gigabit=20
  ethernet??<BR></FONT><BR></DIV>
  <DIV></DIV>
  <DIV><FONT size=3D2>Hi All,</FONT></DIV>
  <DIV><FONT size=3D2>&nbsp;&nbsp;&nbsp; I like to create the ibis file =
of gigabit=20
  ethernet. The output waveform has&nbsp;5 levels.</FONT></DIV>
  <DIV><FONT size=3D2>I don't know how to create this ibis file?? Could =
you give=20
  me some comments?? </FONT></DIV>
  <DIV><FONT size=3D2>Thanks in advance!!</FONT></DIV>
  <DIV><FONT size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT size=3D2>Best Regards</FONT></DIV>
  <DIV><FONT size=3D2>Tina</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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------------------------------

Date: Thu, 5 Jan 2006 13:14:30 +0100
From: Ralf Bruening <ralf.bruening@zuken.de>
Subject: [IBIS-Users] European IBIS Summit At DATe 2006 - Second Call for Paper/Call for Participation

To All:

       HAPPY NEW YEAR :-)
       
       We have been holding successful European IBIS Summit Meetings for the 
       past seven years.  Next year we are again holding a meeting along with
       DATe 06 on Friday, March 10, 2006.  The purpose is to promote
       communication among users and developers of IBIS models in Europe. 
       The meeting is free and open to everyone.  However, you will have 
       to register for the exhibition at DATe (to get access to the 
       meeting room).  Refreshments & sandwiches are planned.
       
       Below is some information on the IBIS Summit and some related events. 
       You are invited to register and also to submit presentation proposals.
       
  Ralf Bruening 
  Product Manager High Speed Design Solutions
  ZUKEN EMC Technology Center 

- -----------------------------------------------------------------------------------
 
  E U R O P E A N   I B I S   S U M M I T   M E E T I N G 
    S E C O N D   C A L L   F O R  P A R T I C I P A T I O N
 Time/Date:     9:00 AM - 2:00 PM, Friday, March 10, 2006
 Location:      Meeting room @ ICM Messe Munich (Munich ICM Congress Center)
                Munich, Germany (where DATE 2006 is being held).
                
                Free DATE 2006 exhibition registration for room entry,
                see URL below.
                
 Content:       Presentations and Discussions
 
 Purpose:       Solicit and Exchange IBIS Model Related Information and Ideas 

 Sponsors:      Tentative so far, not all committed yet: Zuken, Mentor Graphics,
                Cadence Design Systems/Flowcad, Siemens.
                       
                If your company would be interested in sponsoring this 
                event, please contact or Ralf Bruening under
                
                <ralf.bruening@zuken.de>.
                
                Benefits to sponsors include formal recognition at the 
                meeting and mention in the Calls for Papers and meeting 
                minutes.
                
                Your financial support strengthens the organization by 
                allowing IBIS to focus resources on industry activities 
                rather than raising money, and you will receive generous 
                thanks for your support. 

 DATE 2006 Conference:     March 06-10, 2006.  The IBIS meeting is scheduled
                the day after the DATE 2005 exhibition ends.
                
 Location:      ICM International Congress Center, Munich, Germany
 DATE URL:      http://www.date-conference.com 

 Background: 
                DATE (Design, Automation, and Test in Europe) is the only 
                European event dedicated to electronic system design and test.
                Topics of current interest to the EIA IBIS Open Forum
                are addressed at DATE.
                This meeting will be conducted as a formal IBIS Summit Meeting. 
                Presentations are expected to be available and archived in an 
                electronic format, and minutes of the meeting will be issued. 

                Any pending formal decisions (votes) will be announced
                at least two weeks prior to the meeting.
                
                Topics and presentations may include (list is 
                open for further contributions): 

                - Submitted Presentations on IBIS Topics (See below) 
                - Information about the most recent IBIS Developments 
                - Less formal Ad Hoc Presentations and Discussions 
                - IBIS and Modelling Questions and Answers
                
                The meeting is free and open to everyone.  However,
                you will have to register for the exhibition at DATe
                (to get access to the meeting room).  Refreshments are
                planned. Below is some information on the IBIS Summit
                and some related events.
                You are invited to register and also to submit
                presentation proposals.


CALL FOR PARTICIPANTS 
     People involved in IBIS Model development, EDA tool development,
     and digital circuit design are invited to participate in the
     European IBIS Summit meeting.
     If you plan to participate, please register with the information
     below  (deadline, Febrary 24th, 2006):
     
     Name: 
     E-mail address: 
     Company: 
     Telephone:
     
 Send to: 
   Ralf Bruening (ralf.bruening@zuken.de)
   
 CALL FOR PRESENTATIONS 
      We are seeking presentations from individuals who have IBIS experiences 
      or issues.  Some suggested subjects of interest are:
      
      - IBIS Model Development Experiences 
      - Company IBIS Standards and Requirements 
      - Generating and Validating IBIS Models 
      - Future IBIS Requirements 
      - Modelling of dedicated technology issues (i.e.
        connectors, very high speed interfaces)
      - EMC/EMI and Power Integrity  IBIS Issues
      - Experiences using IBIS in the PCB Design process 
   
   Format of Presentation:  LCD or Overhead Projections 
   Time:                    15-30 Minutes 
   Electronic Archival:     We request electronic versions so that the 
                            presentations can be archived and also made 
                            available to non-attendees.  Formats used in 
                            the past have been text, Power Point, Word, 
                            Postscript, and Acrobat PDF. 
                            Electronic presentations should be made 
                            available by February the 25th, 2005.
                            Otherwise the presentor will be expected to 
                            provide 30 copies for distribution.
                            
  If you plan a presentation, please supply 
   Title: 
   Presenter: 
   E-mail address: 
   Company: 
   Telephone: 
   Estimate Time: 

 Send this to both: 
   Ralf Bruening  (ralf.bruening@zuken.de)

AGENDA 
      The agenda includes presentations, discussions, breaks, and 
      a luncheon (which will be provided).  This will be developed as 
      presentation proposals are received. 

LIST OF NEARBY HOTELS 
     See <http://www.date-conference.com/conference/travel.htm> for 
     travel directions, hotels and other information. 

Looking forward to meeting you at DATe 2006 in Munich
   
   Ralf Bruening 


_____________________________________________
 
Ralf Bruening 
Product Manager High Speed Design/Partner & Solution Business
Zuken EMC Technology Center
Vattmannstr.3 
33100 Paderborn  
Germany

 
Tel: ++49 (0) 5251 150 600 (direct -621) 
Fax: ++49 (0) 5251 150 700

Email: ralf.bruening@zuken.de 
Web: www.zuken.com 
_____________________________________________
This message is for the designated recipient only and may contain
privileged, proprietary, or otherwise private information.  If you
have
received it in error, please notify the sender immediately and
delete
the original.  Any other use of the email by you is prohibited. 

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------------------------------

Date: Thu, 5 Jan 2006 09:27:13 -0500
From: "Andrew Ingraham" <a.ingraham@ieee.org>
Subject: [IBIS-Users] Re: how to create the ibis of gigabit ethernet??

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I've not looked closely at gigabit ethernet, but older 100 Mb/s ethernet =
had 3 voltage levels (+, -, and 0).

I don't think IBIS can handle this sort of thing, since IBIS understands =
only two states: High and Low.

I'd stick with SPICE models for the ethernet drop side of the interface.

Regards,
Andy


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<DIV>
<DIV>I've not looked closely at gigabit ethernet, but older 100 Mb/s =
ethernet=20
had 3 voltage levels (+, -, and 0).</DIV>
<DIV>&nbsp;</DIV>
<DIV>I don't think IBIS can handle this sort of thing, since IBIS =
understands=20
only two states: High and Low.</DIV>
<DIV>&nbsp;</DIV>
<DIV>I'd stick with SPICE models for the ethernet drop side of the=20
interface.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Regards,</DIV>
<DIV>Andy</DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV></DIV></BODY></HTML>

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|  http://www.eda.org/pub/ibis/email/          E-mail since 1993

------------------------------

Date: Thu, 05 Jan 2006 20:22:49 +0530
From: Vinayak Ghatawade <vinayak@ti.com>
Subject: [IBIS-Users] Re: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads

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- --------------050809000701050604060500
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All,

Thanks for the information and replies.
The buffer is using a feedback which changes the drivestrengths.

Currently we are going to chop the ringing portion
of the IBIS V-T data which looks the safer option
and go ahead.

Thanks again
vinayak

Muranyi, Arpad wrote:

>Andy,
>
>You are absolutely correct, there are different
>types of feedbacks, and I should have defined
>which one I was referring to in my posting...
>
>I was thinking of one that adjusts the drive
>strength real time as the buffer is switching.
>Legacy IBIS can't do that.  (Although one could
>model these too using the *-AMS extensions of
>IBIS).
>
>On the other hand, buffers which adjust their
>own drive strength only once and a while to
>compensate for temperature variations, for
>example, can be modeled in IBIS as if they were
>normal buffers, because they don't change skins
>while driving signals onto the bus.  You may
>need the [Model Selector] keyword to make a
>few different driver models available for the
>various strengths, but that's all.
>
>Arpad
>------------------------------------------------
>
>-----Original Message-----
>From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of Andrew Ingraham
>Sent: Wednesday, January 04, 2006 9:31 AM
>To: ibis-users@eda.org; ibis@eda.org
>Subject: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads
>
>  
>
>>I think he is saying that the oscillations happen
>>because of the feedback in the buffer is trying to
>>settle to a steady state condition.
>>
>>If so, legacy IBIS can not model your buffer, since
>>there are no provisions for describing feedback.
>>    
>>
>
>Yes.
>
>Although it depends on the feedback.
>
>Linear negative feedback, such as used on op-amps to reduce output
>impedance, should work OK, I think.  It's probably also possible that some
>forms of feedback to reduce variations in drive strength (for example),
>ought to be somewhat compatible with conventional IBIS.  But things like
>positive feedback to give hysteresis, don't play well in IBIS.
>
>Regards,
>Andy
>
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All,<br>
<br>
Thanks for the information and replies. <br>
The buffer is using a feedback which changes the drivestrengths.<br>
<br>
Currently we are going to chop the ringing portion <br>
of the IBIS V-T data which looks the safer option <br>
and go ahead.<br>
<br>
Thanks again<br>
vinayak<br>
<br>
Muranyi, Arpad wrote:
<blockquote
 cite="mid80C38847588CEF4EB97210D53B752C5D0E2F0CA4@fmsmsx402.amr.corp.intel.com"
 type="cite">
  <pre wrap="">Andy,

You are absolutely correct, there are different
types of feedbacks, and I should have defined
which one I was referring to in my posting...

I was thinking of one that adjusts the drive
strength real time as the buffer is switching.
Legacy IBIS can't do that.  (Although one could
model these too using the *-AMS extensions of
IBIS).

On the other hand, buffers which adjust their
own drive strength only once and a while to
compensate for temperature variations, for
example, can be modeled in IBIS as if they were
normal buffers, because they don't change skins
while driving signals onto the bus.  You may
need the [Model Selector] keyword to make a
few different driver models available for the
various strengths, but that's all.

Arpad
- ------------------------------------------------

- -----Original Message-----
From: <a class="moz-txt-link-abbreviated" href="mailto:owner-ibis@eda.org">owner-ibis@eda.org</a> [<a class="moz-txt-link-freetext" href="mailto:owner-ibis@eda.org">mailto:owner-ibis@eda.org</a>] On Behalf Of Andrew Ingraham
Sent: Wednesday, January 04, 2006 9:31 AM
To: <a class="moz-txt-link-abbreviated" href="mailto:ibis-users@eda.org">ibis-users@eda.org</a>; <a class="moz-txt-link-abbreviated" href="mailto:ibis@eda.org">ibis@eda.org</a>
Subject: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads

  </pre>
  <blockquote type="cite">
    <pre wrap="">I think he is saying that the oscillations happen
because of the feedback in the buffer is trying to
settle to a steady state condition.

If so, legacy IBIS can not model your buffer, since
there are no provisions for describing feedback.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
Yes.

Although it depends on the feedback.

Linear negative feedback, such as used on op-amps to reduce output
impedance, should work OK, I think.  It's probably also possible that some
forms of feedback to reduce variations in drive strength (for example),
ought to be somewhat compatible with conventional IBIS.  But things like
positive feedback to give hysteresis, don't play well in IBIS.

Regards,
Andy

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  </pre>
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------------------------------

Date: Thu, 5 Jan 2006 08:20:36 -0800
From: "Muranyi, Arpad" <arpad.muranyi@intel.com>
Subject: [IBIS-Users] RE: [IBIS] Re: how to create the ibis of gigabit ethernet??

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Andy,
=20
Why not start using the *-AMS extensions of IBIS?
=20
Arpad Muranyi
Intel Corporation
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=


________________________________

From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of Andrew =
Ingraham
Sent: Thursday, January 05, 2006 6:27 AM
To: ibis-users@eda.org; ibis@eda.org
Subject: [IBIS] Re: how to create the ibis of gigabit ethernet??


I've not looked closely at gigabit ethernet, but older 100 Mb/s ethernet =
had 3 voltage levels (+, -, and 0).
=20
I don't think IBIS can handle this sort of thing, since IBIS understands =
only two states: High and Low.
=20
I'd stick with SPICE models for the ethernet drop side of the interface.
=20
Regards,
Andy
=20
=20

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dwindows-1252">
<META content=3D"MSHTML 6.00.2800.1522" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D559511916-05012006><FONT =
face=3D"Courier New"=20
size=3D2>Andy,</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D559511916-05012006><FONT =
face=3D"Courier New"=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D559511916-05012006><FONT =
face=3D"Courier New"=20
size=3D2>Why not start using the *-AMS extensions of =
IBIS?</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D559511916-05012006><FONT =
face=3D"Courier New"=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D559511916-05012006><FONT =
face=3D"Courier New"=20
size=3D2>Arpad Muranyi</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D559511916-05012006><FONT =
face=3D"Courier New"=20
size=3D2>Intel Corporation</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D559511916-05012006><FONT =
face=3D"Courier New"=20
size=3D2>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D</FONT></SPAN></DIV><BR>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>From:</B> owner-ibis@eda.org=20
[mailto:owner-ibis@eda.org] <B>On Behalf Of </B>Andrew =
Ingraham<BR><B>Sent:</B>=20
Thursday, January 05, 2006 6:27 AM<BR><B>To:</B> ibis-users@eda.org;=20
ibis@eda.org<BR><B>Subject:</B> [IBIS] Re: how to create the ibis of =
gigabit=20
ethernet??<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>
<DIV>I've not looked closely at gigabit ethernet, but older 100 Mb/s =
ethernet=20
had 3 voltage levels (+, -, and 0).</DIV>
<DIV>&nbsp;</DIV>
<DIV>I don't think IBIS can handle this sort of thing, since IBIS =
understands=20
only two states: High and Low.</DIV>
<DIV>&nbsp;</DIV>
<DIV>I'd stick with SPICE models for the ethernet drop side of the=20
interface.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Regards,</DIV>
<DIV>Andy</DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV></DIV></BODY></HTML>

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------------------------------

Date: Thu, 5 Jan 2006 09:12:31 -0800
From: "Tom Dagostino" <tom@teraspeed.com>
Subject: [IBIS-Users] RE: [IBIS] how to create the ibis of gigabit ethernet??

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Standard IBIS will not allow you to model your multilevel driver, you will
have to use the IBIS 4.1 features as Lynne points out.

Tom Dagostino
Teraspeed(R) Labs
13610 SW Harness Lane
Beaverton, OR 97008
503-430-1065
tom@teraspeed.com
www.teraspeed.com

Teraspeed Consulting Group LLC
121 North River Drive
Narragansett, RI 02882
401-284-1827

  -----Original Message-----
  From: owner-ibis@eda.org [mailto:owner-ibis@eda.org]On Behalf Of ???
  Sent: Thursday, January 05, 2006 12:33 AM
  To: Lynne D. Green
  Cc: ibis-users@eda.org; ibis@eda.org
  Subject: Re: [IBIS] how to create the ibis of gigabit ethernet??


  Hi,
      Thanks for your response. The "5 level" mean the voltage level, not
driver strength.
  Usually, one bit has 2 level (0 or vdd). And 2 bits have 4 level at least.
Here is 2-bit using
  5 level. Please give me some commemts?? Thanks!!

  Best Regards
  Tina
  ----- Original Message -----
    From: Lynne D. Green
    To: '???'
    Cc: ibis-users@eda.org ; ibis@eda.org
    Sent: Thursday, January 05, 2006 3:23 PM
    Subject: RE: [IBIS] how to create the ibis of gigabit ethernet??


    Hi, Tina,

    This depends on what you mean by "levels".

    If you mean 5 drive strength options, but no change in drive strength
option during a transition, then usually one IBIS model is created for each
drive strength.

    If you mean 5 different drive strengths used during one transition (such
as a buffer with internal feedback), then table-based IBIS modeling probably
would not be suitable.  In this case, one could consider IBIS 4.1, with an
AMS or SPICE language option.

    Best regards,
    Lynne


    "IBIS training when you need it, where you need it."

    Dr. Lynne Green
    Green Streak Programs
    http://www.greenstreakprograms.com
    425-788-0412
    lgreen22@mindspring.com



- --------------------------------------------------------------------------
      From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of ???
      Sent: Wednesday, January 04, 2006 9:44 PM
      To: ibis-users@eda.org; ibis@eda.org
      Subject: [IBIS] how to create the ibis of gigabit ethernet??


      Hi All,
          I like to create the ibis file of gigabit ethernet. The output
waveform has 5 levels.
      I don't know how to create this ibis file?? Could you give me some
comments??
      Thanks in advance!!

      Best Regards
      Tina

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<BODY bgColor=3D#ffffff>
<DIV><SPAN class=3D276121117-05012006><FONT face=3DArial color=3D#0000ff =

size=3D2>Standard IBIS will not allow you to model your multilevel =
driver, you=20
will have to use the IBIS 4.1 features as Lynne points =
out.</FONT></SPAN></DIV>
<DIV>&nbsp;</DIV>
<P><FONT size=3D2>Tom Dagostino<BR>Teraspeed(R) Labs<BR>13610 SW Harness =

Lane<BR>Beaverton, OR=20
97008<BR>503-430-1065<BR>tom@teraspeed.com<BR>www.teraspeed.com<BR><BR>Te=
raspeed=20
Consulting Group LLC<BR>121 North River Drive<BR>Narragansett, RI=20
02882<BR>401-284-1827</FONT> </P>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
  <DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
  size=3D2>-----Original Message-----<BR><B>From:</B> owner-ibis@eda.org =

  [mailto:owner-ibis@eda.org]<B>On Behalf Of </B>???<BR><B>Sent:</B> =
Thursday,=20
  January 05, 2006 12:33 AM<BR><B>To:</B> Lynne D. Green<BR><B>Cc:</B>=20
  ibis-users@eda.org; ibis@eda.org<BR><B>Subject:</B> Re: [IBIS] how to =
create=20
  the ibis of gigabit ethernet??<BR><BR></FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>Hi,&nbsp;&nbsp;</FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>&nbsp;&nbsp;&nbsp; Thanks for your response. The=20
  "5 level" mean the voltage level, not driver strength.</FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; size=3D2>Usually, =
one bit has 2 level (0 or vdd).&nbsp;And=20
  2 bits&nbsp;have 4 level at least. Here is 2-bit using </FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; size=3D2>5 level. =
Please give me some commemts??=20
  Thanks!!</FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; size=3D2>Best =
Regards</FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>Tina</FONT></DIV>
  <DIV>----- Original Message ----- </DIV>
  <BLOCKQUOTE dir=3Dltr=20
  style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
    <DIV=20
    style=3D"BACKGROUND: #e4e4e4; FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;; font-color: black"><B>From:</B>=20
    <A title=3Dlgreen22@mindspring.com =
href=3D"mailto:lgreen22@mindspring.com">Lynne=20
    D. Green</A> </DIV>
    <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>To:</B> <A =
title=3Dtinawu@realtek.com.tw=20
    href=3D"mailto:tinawu@realtek.com.tw">'???'</A> </DIV>
    <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Cc:</B> <A =
title=3Dibis-users@eda.org=20
    href=3D"mailto:ibis-users@eda.org">ibis-users@eda.org</A> ; <A=20
    title=3Dibis@eda.org href=3D"mailto:ibis@eda.org">ibis@eda.org</A> =
</DIV>
    <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Sent:</B> Thursday, January 05, =
2006 3:23=20
    PM</DIV>
    <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Subject:</B> RE: [IBIS] how to =
create the=20
    ibis of gigabit ethernet??</DIV>
    <DIV><BR></DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2>Hi, Tina,</FONT></SPAN></DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2>This depends on what you mean by=20
    "levels".</FONT></SPAN></DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2>If you mean 5 drive strength options, but =
no change in=20
    drive strength option&nbsp;during a transition, then usually one =
IBIS model=20
    is created for each drive strength.</FONT></SPAN></DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2>If you mean 5 different drive strengths =
used during one=20
    transition (such as a buffer with internal feedback), then =
table-based IBIS=20
    modeling probably would not be suitable.&nbsp; In this case, one =
could=20
    consider IBIS 4.1, with an AMS or SPICE language =
option.</FONT></SPAN></DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2>Best regards,</FONT></SPAN></DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2>Lynne</FONT></SPAN></DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
    <DIV>&nbsp;</DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2>"IBIS training when you need it, where you =
need=20
    it."</FONT></SPAN></DIV>
    <DIV>&nbsp;</DIV>
    <DIV dir=3Dltr align=3Dleft><SPAN class=3D312391507-05012006><FONT =
face=3DArial=20
    color=3D#0000ff size=3D2>Dr. Lynne Green<BR>Green Streak =
Programs<BR><A=20
    =
href=3D"http://www.greenstreakprograms.com">http://www.greenstreakprogram=
s.com</A><BR>425-788-0412<BR><A=20
    =
href=3D"mailto:lgreen22@mindspring.com">lgreen22@mindspring.com</A></FONT=
></SPAN></DIV><BR>
    <BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
      <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft>
      <HR tabIndex=3D-1>
      <FONT face=3DTahoma size=3D2><B>From:</B> owner-ibis@eda.org=20
      [mailto:owner-ibis@eda.org] <B>On Behalf Of =
</B>???<BR><B>Sent:</B>=20
      Wednesday, January 04, 2006 9:44 PM<BR><B>To:</B> =
ibis-users@eda.org;=20
      ibis@eda.org<BR><B>Subject:</B> [IBIS] how to create the ibis of =
gigabit=20
      ethernet??<BR></FONT><BR></DIV>
      <DIV></DIV>
      <DIV><FONT size=3D2>Hi All,</FONT></DIV>
      <DIV><FONT size=3D2>&nbsp;&nbsp;&nbsp; I like to create the ibis =
file of=20
      gigabit ethernet. The output waveform has&nbsp;5 =
levels.</FONT></DIV>
      <DIV><FONT size=3D2>I don't know how to create this ibis file?? =
Could you=20
      give me some comments?? </FONT></DIV>
      <DIV><FONT size=3D2>Thanks in advance!!</FONT></DIV>
      <DIV><FONT size=3D2></FONT>&nbsp;</DIV>
      <DIV><FONT size=3D2>Best Regards</FONT></DIV>
      <DIV><FONT=20
size=3D2>Tina</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY><=
/HTML>

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------------------------------

Date: Fri, 6 Jan 2006 00:16:02 -0800
From: "Lynne D. Green" <lgreen22@mindspring.com>
Subject: [IBIS-Users] RE: [IBIS] how to create the ibis of gigabit ethernet??

This is a multi-part message in MIME format.

- ------=_NextPart_000_0004_01C61256.610D8040
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: 7bit

Hello, Tina,
 
Depending on which AMS simulator you are using, you might not need a netlist
translator.  Many *-AMS simulators accept SPICE netlists, and provide a set
of SPICE elements (for example, EKV and Berkeley-BSIM transistor models).
 
For tool-specific information, the best person to ask is your EDA tool
supplier.
 
Best regards,
Lynne
 


  _____  

From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of ???
Sent: Thursday, January 05, 2006 11:49 PM
Cc: ibis-users@eda.org; ibis@eda.org
Subject: Re: [IBIS] how to create the ibis of gigabit ethernet??


Dear All,
    Thanks for your suggestion!! I have another question. If I like to model
with AMS language.
Does any program translate SPICE(netlist) to AMS?? Thanks!!
 
Best Regards
Tina

- ----- Original Message ----- 
From: Tom Dagostino <mailto:tom@teraspeed.com>  
To: ??? <mailto:tinawu@realtek.com.tw>  ; Lynne D.
<mailto:lgreen22@mindspring.com> Green 
Cc: ibis-users@eda.org ; ibis@eda.org 
Sent: Friday, January 06, 2006 1:12 AM
Subject: RE: [IBIS] how to create the ibis of gigabit ethernet??

Standard IBIS will not allow you to model your multilevel driver, you will
have to use the IBIS 4.1 features as Lynne points out.
 

Tom Dagostino
Teraspeed(R) Labs
13610 SW Harness Lane
Beaverton, OR 97008
503-430-1065
tom@teraspeed.com
www.teraspeed.com

Teraspeed Consulting Group LLC
121 North River Drive
Narragansett, RI 02882
401-284-1827 

- -----Original Message-----
From: owner-ibis@eda.org [mailto:owner-ibis@eda.org]On Behalf Of ???
Sent: Thursday, January 05, 2006 12:33 AM
To: Lynne D. Green
Cc: ibis-users@eda.org; ibis@eda.org
Subject: Re: [IBIS] how to create the ibis of gigabit ethernet??


Hi,  
    Thanks for your response. The "5 level" mean the voltage level, not
driver strength.
Usually, one bit has 2 level (0 or vdd). And 2 bits have 4 level at least.
Here is 2-bit using 
5 level. Please give me some commemts?? Thanks!!
 
Best Regards
Tina
- ----- Original Message ----- 

From: Lynne D. Green <mailto:lgreen22@mindspring.com>  
To: '???' <mailto:tinawu@realtek.com.tw>  
Cc: ibis-users@eda.org ; ibis@eda.org 
Sent: Thursday, January 05, 2006 3:23 PM
Subject: RE: [IBIS] how to create the ibis of gigabit ethernet??

Hi, Tina,
 
This depends on what you mean by "levels".
 
If you mean 5 drive strength options, but no change in drive strength option
during a transition, then usually one IBIS model is created for each drive
strength.
 
If you mean 5 different drive strengths used during one transition (such as
a buffer with internal feedback), then table-based IBIS modeling probably
would not be suitable.  In this case, one could consider IBIS 4.1, with an
AMS or SPICE language option.
 
Best regards,
Lynne
 
 
"IBIS training when you need it, where you need it."
 
Dr. Lynne Green
Green Streak Programs
http://www.greenstreakprograms.com
425-788-0412
lgreen22@mindspring.com


  _____  

From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of ???
Sent: Wednesday, January 04, 2006 9:44 PM
To: ibis-users@eda.org; ibis@eda.org
Subject: [IBIS] how to create the ibis of gigabit ethernet??


Hi All,
    I like to create the ibis file of gigabit ethernet. The output waveform
has 5 levels.
I don't know how to create this ibis file?? Could you give me some
comments?? 
Thanks in advance!!
 
Best Regards
Tina


- ------=_NextPart_000_0004_01C61256.610D8040
Content-Type: text/html;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<STYLE></STYLE>

<META content=3D"MSHTML 6.00.2900.2722" name=3DGENERATOR></HEAD>
<BODY bgColor=3D#ffffff>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D218211008-06012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Hello, Tina,</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D218211008-06012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D218211008-06012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Depending on which AMS simulator you are using, =
you might=20
not need a netlist translator.&nbsp; Many *-AMS simulators accept SPICE=20
netlists, and provide a set of SPICE elements (for example, EKV and=20
Berkeley-BSIM transistor models).</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D218211008-06012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3DArial><FONT size=3D2><FONT =
color=3D#0000ff><SPAN=20
class=3D218211008-06012006>For tool-specific information, the best =
person to ask=20
is your EDA tool supplier.</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3DArial><FONT size=3D2><FONT =
color=3D#0000ff><SPAN=20
class=3D218211008-06012006></SPAN></FONT></FONT></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3DArial><FONT size=3D2><FONT =
color=3D#0000ff><SPAN=20
class=3D218211008-06012006>Best =
regards,</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3DArial><FONT size=3D2><FONT =
color=3D#0000ff><SPAN=20
class=3D218211008-06012006>Lynne</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D218211008-06012006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV><BR>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
  <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
  <HR tabIndex=3D-1>
  <FONT face=3DTahoma size=3D2><B>From:</B> owner-ibis@eda.org=20
  [mailto:owner-ibis@eda.org] <B>On Behalf Of </B>???<BR><B>Sent:</B> =
Thursday,=20
  January 05, 2006 11:49 PM<BR><B>Cc:</B> ibis-users@eda.org;=20
  ibis@eda.org<BR><B>Subject:</B> Re: [IBIS] how to create the ibis of =
gigabit=20
  ethernet??<BR></FONT><BR></DIV>
  <DIV></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; size=3D2>Dear =
All,</FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>&nbsp;&nbsp;&nbsp; Thanks for your suggestion!! I=20
  have another question. If I like to model with AMS =
language.</FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; size=3D2>Does any =
program translate&nbsp;SPICE(netlist) to=20
  AMS??&nbsp;Thanks!!</FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; size=3D2>Best =
Regards</FONT></DIV>
  <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>Tina</FONT></DIV>
  <BLOCKQUOTE dir=3Dltr=20
  style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
    <DIV style=3D"FONT: 10pt &#26032;&#32048;&#26126;&#39636;">----- =
Original Message ----- </DIV>
    <DIV=20
    style=3D"BACKGROUND: #e4e4e4; FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;; font-color: black"><B>From:</B>=20
    <A title=3Dtom@teraspeed.com href=3D"mailto:tom@teraspeed.com">Tom =
Dagostino</A>=20
    </DIV>
    <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>To:</B> <A =
title=3Dtinawu@realtek.com.tw=20
    href=3D"mailto:tinawu@realtek.com.tw">???</A> ; <A=20
    title=3Dlgreen22@mindspring.com =
href=3D"mailto:lgreen22@mindspring.com">Lynne D.=20
    Green</A> </DIV>
    <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Cc:</B> <A =
title=3Dibis-users@eda.org=20
    href=3D"mailto:ibis-users@eda.org">ibis-users@eda.org</A> ; <A=20
    title=3Dibis@eda.org href=3D"mailto:ibis@eda.org">ibis@eda.org</A> =
</DIV>
    <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Sent:</B> Friday, January 06, 2006 =
1:12=20
    AM</DIV>
    <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Subject:</B> RE: [IBIS] how to =
create the=20
    ibis of gigabit ethernet??</DIV>
    <DIV><BR></DIV>
    <DIV><SPAN class=3D276121117-05012006><FONT face=3DArial =
color=3D#0000ff=20
    size=3D2>Standard IBIS will not allow you to model your multilevel =
driver, you=20
    will have to use the IBIS 4.1 features as Lynne points=20
    out.</FONT></SPAN></DIV>
    <DIV>&nbsp;</DIV>
    <P><FONT size=3D2>Tom Dagostino<BR>Teraspeed(R) Labs<BR>13610 SW =
Harness=20
    Lane<BR>Beaverton, OR 97008<BR>503-430-1065<BR><A=20
    href=3D"mailto:tom@teraspeed.com">tom@teraspeed.com</A><BR><A=20
    =
href=3D"http://www.teraspeed.com">www.teraspeed.com</A><BR><BR>Teraspeed =

    Consulting Group LLC<BR>121 North River Drive<BR>Narragansett, RI=20
    02882<BR>401-284-1827</FONT> </P>
    <BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
      <DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
      size=3D2>-----Original Message-----<BR><B>From:</B> <A=20
      href=3D"mailto:owner-ibis@eda.org">owner-ibis@eda.org</A>=20
      [mailto:owner-ibis@eda.org]<B>On Behalf Of </B>???<BR><B>Sent:</B> =

      Thursday, January 05, 2006 12:33 AM<BR><B>To:</B> Lynne D.=20
      Green<BR><B>Cc:</B> <A=20
      href=3D"mailto:ibis-users@eda.org">ibis-users@eda.org</A>; <A=20
      href=3D"mailto:ibis@eda.org">ibis@eda.org</A><BR><B>Subject:</B> =
Re: [IBIS]=20
      how to create the ibis of gigabit ethernet??<BR><BR></FONT></DIV>
      <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>Hi,&nbsp;&nbsp;</FONT></DIV>
      <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>&nbsp;&nbsp;&nbsp; Thanks for your response.=20
      The "5 level" mean the voltage level, not driver =
strength.</FONT></DIV>
      <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>Usually, one bit has 2 level (0 or=20
      vdd).&nbsp;And 2 bits&nbsp;have 4 level at least. Here is 2-bit =
using=20
      </FONT></DIV>
      <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; size=3D2>5 =
level. Please give me some commemts??=20
      Thanks!!</FONT></DIV>
      <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2></FONT>&nbsp;</DIV>
      <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; size=3D2>Best =
Regards</FONT></DIV>
      <DIV><FONT face=3D&#26032;&#32048;&#26126;&#39636; =
size=3D2>Tina</FONT></DIV>
      <DIV>----- Original Message ----- </DIV>
      <BLOCKQUOTE dir=3Dltr=20
      style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
        <DIV=20
        style=3D"BACKGROUND: #e4e4e4; FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;; font-color: black"><B>From:</B>=20
        <A title=3Dlgreen22@mindspring.com=20
        href=3D"mailto:lgreen22@mindspring.com">Lynne D. Green</A> =
</DIV>
        <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>To:</B> <A =
title=3Dtinawu@realtek.com.tw=20
        href=3D"mailto:tinawu@realtek.com.tw">'???'</A> </DIV>
        <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Cc:</B> <A =
title=3Dibis-users@eda.org=20
        href=3D"mailto:ibis-users@eda.org">ibis-users@eda.org</A> ; <A=20
        title=3Dibis@eda.org =
href=3D"mailto:ibis@eda.org">ibis@eda.org</A> </DIV>
        <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Sent:</B> Thursday, January 05, =
2006=20
        3:23 PM</DIV>
        <DIV style=3D"FONT: 10pt =
&#26032;&#32048;&#26126;&#39636;"><B>Subject:</B> RE: [IBIS] how to =
create=20
        the ibis of gigabit ethernet??</DIV>
        <DIV><BR></DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2>Hi, Tina,</FONT></SPAN></DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2>This depends on what you mean by=20
        "levels".</FONT></SPAN></DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2>If you mean 5 drive strength options, =
but no change=20
        in drive strength option&nbsp;during a transition, then usually =
one IBIS=20
        model is created for each drive strength.</FONT></SPAN></DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2>If you mean 5 different drive strengths =
used during=20
        one transition (such as a buffer with internal feedback), then=20
        table-based IBIS modeling probably would not be suitable.&nbsp; =
In this=20
        case, one could consider IBIS 4.1, with an AMS or SPICE language =

        option.</FONT></SPAN></DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2>Best regards,</FONT></SPAN></DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2>Lynne</FONT></SPAN></DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
        <DIV>&nbsp;</DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2>"IBIS training when you need it, where =
you need=20
        it."</FONT></SPAN></DIV>
        <DIV>&nbsp;</DIV>
        <DIV dir=3Dltr align=3Dleft><SPAN =
class=3D312391507-05012006><FONT face=3DArial=20
        color=3D#0000ff size=3D2>Dr. Lynne Green<BR>Green Streak =
Programs<BR><A=20
        =
href=3D"http://www.greenstreakprograms.com">http://www.greenstreakprogram=
s.com</A><BR>425-788-0412<BR><A=20
        =
href=3D"mailto:lgreen22@mindspring.com">lgreen22@mindspring.com</A></FONT=
></SPAN></DIV><BR>
        <BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
          <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft>
          <HR tabIndex=3D-1>
          <FONT face=3DTahoma size=3D2><B>From:</B> owner-ibis@eda.org=20
          [mailto:owner-ibis@eda.org] <B>On Behalf Of =
</B>???<BR><B>Sent:</B>=20
          Wednesday, January 04, 2006 9:44 PM<BR><B>To:</B> =
ibis-users@eda.org;=20
          ibis@eda.org<BR><B>Subject:</B> [IBIS] how to create the ibis =
of=20
          gigabit ethernet??<BR></FONT><BR></DIV>
          <DIV></DIV>
          <DIV><FONT size=3D2>Hi All,</FONT></DIV>
          <DIV><FONT size=3D2>&nbsp;&nbsp;&nbsp; I like to create the =
ibis file of=20
          gigabit ethernet. The output waveform has&nbsp;5 =
levels.</FONT></DIV>
          <DIV><FONT size=3D2>I don't know how to create this ibis =
file?? Could=20
          you give me some comments?? </FONT></DIV>
          <DIV><FONT size=3D2>Thanks in advance!!</FONT></DIV>
          <DIV><FONT size=3D2></FONT>&nbsp;</DIV>
          <DIV><FONT size=3D2>Best Regards</FONT></DIV>
          <DIV><FONT=20
  =
size=3D2>Tina</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQ=
UOTE></BLOCKQUOTE></BODY></HTML>

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|  http://www.eda.org/pub/ibis/users_archive/  Recent
|  http://www.eda.org/pub/ibis/email/          E-mail since 1993

------------------------------

Date: Mon, 09 Jan 2006 21:24:15 +0530
From: Vinayak Ghatawade <vinayak@ti.com>
Subject: [IBIS-Users] IBIS modellling for open drain cells 

All,

I had one more query for open-drain cells
for a buffer driving a huge capacitive load (bus capacitance)

For ex: a slow buffer with a large fall time

How do we model V-T data for such buffer. As we have only pulldown clamp
currents and RISING and FALLING WAVEFORM with R_Fixture tied to actual
pullup resistor(and not 50 ohms) connected to V_FIXTURE= VCC.

Should we have C_FIXTURE (bus capacitance) define for V-T data. What i 
feel is as the
buffer's fall time is so huge, there is no such Transmission line modelling
required for such a case.

Thanks and Regards
vinayak

Vinayak Ghatawade wrote:

> All,
>
> Thanks for the information and replies.
> The buffer is using a feedback which changes the drivestrengths.
>
> Currently we are going to chop the ringing portion
> of the IBIS V-T data which looks the safer option
> and go ahead.
>
> Thanks again
> vinayak
>
> Muranyi, Arpad wrote:
>
>>Andy,
>>
>>You are absolutely correct, there are different
>>types of feedbacks, and I should have defined
>>which one I was referring to in my posting...
>>
>>I was thinking of one that adjusts the drive
>>strength real time as the buffer is switching.
>>Legacy IBIS can't do that.  (Although one could
>>model these too using the *-AMS extensions of
>>IBIS).
>>
>>On the other hand, buffers which adjust their
>>own drive strength only once and a while to
>>compensate for temperature variations, for
>>example, can be modeled in IBIS as if they were
>>normal buffers, because they don't change skins
>>while driving signals onto the bus.  You may
>>need the [Model Selector] keyword to make a
>>few different driver models available for the
>>various strengths, but that's all.
>>
>>Arpad
>>------------------------------------------------
>>
>>-----Original Message-----
>>From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of Andrew Ingraham
>>Sent: Wednesday, January 04, 2006 9:31 AM
>>To: ibis-users@eda.org; ibis@eda.org
>>Subject: [IBIS] Re: hspice vs IBIS model correlation at different capacitive loads
>>
>>  
>>
>>>I think he is saying that the oscillations happen
>>>because of the feedback in the buffer is trying to
>>>settle to a steady state condition.
>>>
>>>If so, legacy IBIS can not model your buffer, since
>>>there are no provisions for describing feedback.
>>>    
>>>
>>
>>Yes.
>>
>>Although it depends on the feedback.
>>
>>Linear negative feedback, such as used on op-amps to reduce output
>>impedance, should work OK, I think.  It's probably also possible that some
>>forms of feedback to reduce variations in drive strength (for example),
>>ought to be somewhat compatible with conventional IBIS.  But things like
>>positive feedback to give hysteresis, don't play well in IBIS.
>>
>>Regards,
>>Andy
>>
>>-----------------------------------------------------------------
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------------------------------

Date: Mon, 9 Jan 2006 10:58:40 -0700
From: "Juarez Hernandez Esdras-R63264" <esdras@freescale.com>
Subject: [IBIS-Users] Differential IBIS Generation

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Hi IBIS Gurus!
=20
Currently I am working on differential IBIS model generation, and I have
some questions regarding to differential IBIS model generation:
=20
1.- If only 2.1 Is S2IBIS2 able to generate IBIS models for true
differential buffers?
2.- When resistive common mode elements are used in the buffer outputs,
how this resistors needs to be considered? Perhaps, in the same way as
terminated buffers?
3.- How valid is the following proposed method:
=20
 Secrets Revealed: Creating accurate LVDS IBIS models
 By Adam Tambone, Modeling Engineer, Interface Design Group, Fairchild
Semiconductor Corp. South Portand, Maine =20
 PlanetAnalog=20
 April 3, 2002=20
=20
I would really appreciatte if anyone can answer these questions. Thanks
in advance!!!
=20
Best Regards: Esdras
=20
=20
=20
=20

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<BODY>
<DIV><FONT face=3DArial size=3D2>Hi IBIS Gurus!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Currently I am working on differential =
IBIS model=20
generation, and I have some questions regarding to differential IBIS =
model=20
generation:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>1.- If only 2.1 Is S2IBIS2 able to =
generate IBIS=20
models for true differential buffers?<BR>2.- When resistive common mode =
elements=20
are used in the buffer outputs, how this resistors needs to be =
considered?=20
Perhaps, in the same way as terminated buffers?<BR>3.- How valid is the=20
following proposed method:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;Secrets Revealed: Creating =
accurate LVDS IBIS=20
models<BR>&nbsp;By Adam Tambone, Modeling Engineer, Interface Design =
Group,=20
Fairchild Semiconductor Corp. South Portand, Maine =
&nbsp;<BR>&nbsp;PlanetAnalog=20
<BR>&nbsp;April 3, 2002 </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I would really appreciatte if anyone =
can answer=20
these questions. Thanks in advance!!!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Best Regards: Esdras</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV align=3Dleft><FONT face=3DArial size=3D2>
<DIV><STRONG><EM></EM></STRONG>&nbsp;</DIV></FONT></DIV></BODY></HTML>

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|  unsubscribe ibis       <optional e-mail address, if different>
|  unsubscribe ibis-users <optional e-mail address, if different>
|
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------------------------------

Date: Mon, 9 Jan 2006 12:01:12 -0800
From: "Muranyi, Arpad" <arpad.muranyi@intel.com>
Subject: RE: [IBIS-Users] Differential IBIS Generation

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Esdras,
=20
1)  I am not using s2ibis, so I can't comment on that.
=20
2)  Resistive common mode elements are nothing but driver
and/or on die termination between the pad and any of the rails.
If there is absolutely no pad-to-pad current flow, normal
IBIS v2.1 models will do a good job describing your differential
model.  From this perspective, the s2ibis tool may work well.
=20
I am not sure whether you have seen these presentations, but
you may get some useful information from looking at them:
=20
http://www.eda.org/pub/ibis/summits/oct03/muranyi.pdf
http://www.eda.org/pub/ibis/summits/feb04a/muranyi1.pdf
=20
Also, the new IBIS cookbook has a fairly detailed section
on differential buffer modeling:
=20
http://www.eda.org/pub/ibis/cookbook/cookbook-v4.pdf
=20
3)  Is this reference available on line?
=20
Arpad Muranyi
Intel Corporation
- ---------------------------------------------------------------


________________________________

From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On =
Behalf Of Juarez Hernandez Esdras-R63264
Sent: Monday, January 09, 2006 9:59 AM
To: ibis-users@eda.org
Cc: ibis-info@eda.org
Subject: [IBIS-Users] Differential IBIS Generation


Hi IBIS Gurus!
=20
Currently I am working on differential IBIS model generation, and I have =
some questions regarding to differential IBIS model generation:
=20
1.- If only 2.1 Is S2IBIS2 able to generate IBIS models for true =
differential buffers?
2.- When resistive common mode elements are used in the buffer outputs, =
how this resistors needs to be considered? Perhaps, in the same way as =
terminated buffers?
3.- How valid is the following proposed method:
=20
 Secrets Revealed: Creating accurate LVDS IBIS models
 By Adam Tambone, Modeling Engineer, Interface Design Group, Fairchild =
Semiconductor Corp. South Portand, Maine =20
 PlanetAnalog=20
 April 3, 2002=20
=20
I would really appreciatte if anyone can answer these questions. Thanks =
in advance!!!
=20
Best Regards: Esdras
=20
=20
=20
=20

- ------_=_NextPart_001_01C61557.70F574C5
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Message</TITLE>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1522" name=3DGENERATOR></HEAD>
<BODY>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>Esdras,</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>1)&nbsp; I am not using s2ibis, so I can't =
comment on=20
that.</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>2)&nbsp; Resistive common mode elements are =
nothing but=20
driver</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>and/or on die termination between the pad and =
any of=20
the rails.</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>If there is absolutely no pad-to-pad current =
flow,=20
normal</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>IBIS v2.1 models will do a good job =
describing your=20
differential</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>model.&nbsp; From this perspective, the =
s2ibis tool may=20
work well.</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>I am not sure whether you have seen these=20
presentations, but</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>you may get some useful information from =
looking at=20
them:</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006><A=20
href=3D"http://www.eda.org/pub/ibis/summits/oct03/muranyi.pdf">http://www=
.eda.org/pub/ibis/summits/oct03/muranyi.pdf</A></SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006><A=20
href=3D"http://www.eda.org/pub/ibis/summits/feb04a/muranyi1.pdf">http://w=
ww.eda.org/pub/ibis/summits/feb04a/muranyi1.pdf</A></SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>Also, the new IBIS cookbook has a fairly =
detailed=20
section</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>on differential buffer =
modeling:</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006><A=20
href=3D"http://www.eda.org/pub/ibis/cookbook/cookbook-v4.pdf">http://www.=
eda.org/pub/ibis/cookbook/cookbook-v4.pdf</A></SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT><FONT face=3D"Courier New" =
size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>3)&nbsp; Is this reference available on=20
line?</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006></SPAN></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>Arpad Muranyi</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>Intel Corporation</SPAN></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><SPAN=20
class=3D119275219-09012006>----------------------------------------------=
- -----------------</SPAN></FONT></DIV><FONT=20
face=3D"Courier New" size=3D2></FONT><FONT face=3D"Courier New" =
size=3D2></FONT><BR>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>From:</B> owner-ibis-users@eda.org=20
[mailto:owner-ibis-users@eda.org] <B>On Behalf Of </B>Juarez Hernandez=20
Esdras-R63264<BR><B>Sent:</B> Monday, January 09, 2006 9:59 =
AM<BR><B>To:</B>=20
ibis-users@eda.org<BR><B>Cc:</B> ibis-info@eda.org<BR><B>Subject:</B>=20
[IBIS-Users] Differential IBIS Generation<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><FONT face=3DArial size=3D2>Hi IBIS Gurus!</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Currently I am working on differential =
IBIS model=20
generation, and I have some questions regarding to differential IBIS =
model=20
generation:</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>1.- If only 2.1 Is S2IBIS2 able to =
generate IBIS=20
models for true differential buffers?<BR>2.- When resistive common mode =
elements=20
are used in the buffer outputs, how this resistors needs to be =
considered?=20
Perhaps, in the same way as terminated buffers?<BR>3.- How valid is the=20
following proposed method:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;Secrets Revealed: Creating =
accurate LVDS IBIS=20
models<BR>&nbsp;By Adam Tambone, Modeling Engineer, Interface Design =
Group,=20
Fairchild Semiconductor Corp. South Portand, Maine =
&nbsp;<BR>&nbsp;PlanetAnalog=20
<BR>&nbsp;April 3, 2002 </FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I would really appreciatte if anyone =
can answer=20
these questions. Thanks in advance!!!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Best Regards: Esdras</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV align=3Dleft><FONT face=3DArial size=3D2>
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------------------------------

Date: Thu, 12 Jan 2006 09:59:15 -0800
From: "Mirmak, Michael" <michael.mirmak@intel.com>
Subject: [IBIS-Users] BIRD102: File Name Limit Extension

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The enclosed BIRD, File Name Limit Extension, is submitted for
consideration at the January 27, 2006 IBIS Open Forum teleconference.

- - Michael Mirmak
  Intel Corp.
  Chair, EIA IBIS Open Forum

  http://www.eigroup.org/ibis/
  http://www.eda.org <<bird102.txt>> /ibis/

=20

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------------------------------

Date: Thu, 12 Jan 2006 17:10:22 -0700
From: rrwolff@micron.com
Subject: [IBIS-Users] [IBIS] Open forum minutes (01/06/06)

This is a multi-part message in MIME format.

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Attached are the minutes of the Friday, January 6, 2006 IBIS Open Forum
teleconference.

Randy Wolff
IBIS Open Forum Secretary

 <<m010606.txt>>=20

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<P><FONT SIZE=3D2 FACE=3D"Verdana">Attached are the minutes of the =
Friday, January 6, 2006 IBIS Open Forum teleconference.</FONT>
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<P><FONT SIZE=3D2 FACE=3D"Verdana">Randy Wolff</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Verdana">IBIS Open Forum Secretary</FONT>
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&lt;&lt;m010606.txt&gt;&gt; </FONT>
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------------------------------

Date: Fri, 13 Jan 2006 14:16:51 -0800
From: "Mirmak, Michael" <michael.mirmak@intel.com>
Subject: [IBIS-Users] BIRD100.2: Allow Pure Analog *-AMS Models

This is a multi-part message in MIME format.

- ------_=_NextPart_001_01C6188F.0CD82625
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable


The enclosed revised BIRD, Allow Pure Analog *-AMS Models, is
distributed on behalf of Ian Dodd of Mentor Graphics and Arpad Muranyi
of Intel Corp.  Discussion and an approval vote are scheduled for the
January 27, 2005 IBIS Open Forum teleconference.

- - Michael Mirmak
  Intel Corp.
  Chair, EIA IBIS Open Forum



- ------_=_NextPart_001_01C6188F.0CD82625
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------------------------------

Date: Wed, 18 Jan 2006 09:27:03 -0800
From: "Fred  Balistreri" <fred@apsimtech.com>
Subject: [IBIS-Users] IBIS Summit 3rd Announcement

This is a multi-part message in MIME format.

- ------=_NextPart_000_0083_01C61C11.573CC520
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	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

To All:

This is the third Announcement for the DesignCon 2006 IBIS Summit
Meeting held in Santa Clara, California.
=20
Note, because of the interest in Monday tutorial sessions, we have
moved the IBIS Meeting to Thursday on the last 1/2 day of DesignCon.
=20
We are seeking Sponsors for the IBIS meeting to cover the expenses
for a Free lunch and refreshments.
=20
Best Regards,
Fred
=20
- -----------------------------------------------------------------------
                              IBIS SUMMIT
                             THIRD CALL FOR
                     PARTICIPATION & PRESENTATIONS
- -----------------------------------------------------------------------
=20

              I B I S   S U M M I T   M E E T I N G
=20
Time/Date:  Thursday, February 9, 2006 8:00 AM to 5:00 PM
            (MOVED FROM MONDAY)
=20
Location:   Santa Clara Convention Center
            Santa Clara, CA
=20
Content:    Presentations and Discussions
=20
Purpose:    Solicit and Exchange IBIS Model Related Information and
            Ideas.
=20
Sponsors:   Applied Simulation Technology, Cisco Systems, International
            Engineering Cornsortium (DesignCon)
=20
            We are seeking more co-sponsors.  Please contact Bob Ross
            <bob@teraspeed.com>.  The Benefits to sponsors include
            recognition at the meeting and acknowledgement in the Calls
            for Papers and meeting minutes.
=20
            Your financial support strengthens the organization by
            allowing IBIS to focus resources on industry activities
            rather than raising money, and you will receive generous
            thanks for your support.
=20
DesignCon 2006 Conference:
=20
            February 6 - February 9, 2006
            Santa Clara Convention Center
            Santa Clara, CA
=20
            Exhibit registration is Free if you register before
            February 6, 2006, and conference discounts before.
          =20
              http://www.designcon.com/2006/
              http://www.designcon.com/2006/registration/
   =20
     Conference Catalog:
=20
       http://www.designcon.com/2006/pdf/dc06_catalog.pdf
=20
IBIS Booth: Come visit the IBIS Booth to meet attendees and pick up
            IBIS information.
=20

BACKGROUND
=20
DesignCon is the premier annual Silicon Valley event for the electronic
design automation (EDA) and semiconductor industry.  Topics of current
interest to the EIA IBIS Open Forum are addressed at DesignCon.
=20
This meeting will be conducted as a formal IBIS Summit Meeting.
Presentations are expected to be available and archived in an electronic
format, and minutes of the meeting will be issued. Any pending formal
decisions (votes) will be announced at least two weeks prior to the
meeting.
=20

CALL FOR PARTICIPANTS
=20
People involved in IBIS Model development, EDA tool development, and
digital circuit design are invited to participate in the Summit meeting.
If you plan to participate, please register with the information below:
=20
       Name:
       E-mail address:
       Company:
       Telephone:
=20
Send to:
=20
       Fred Balistreri  <fred@apsimtech.com>
=20
Registration deadline is Wednesday, February 1, 2003 to receive the
free lunch.
=20
=20
CALL FOR PRESENTATIONS
=20
We are seeking presentations from individuals who have experiences
of interest to the IBIS modeling community.  In the past, these have
included, but not limited to:
=20
       Demonstrations of modeling techniques
       Explanations of behavioral algorithms
       Descriptions of difficulties encountered
       Model correlation
       Modeling building experiences
       Comparisons to other modeling methods
       New techologies for modeling buffers and component
       New technologies for modeling packaging and interconnect
       etc.
=20
Presentations may be addressed to any and all levels of IBIS experience,
from beginning to advanced.
=20
Presentation Format:
=20
      A conference laptop with LCD projection.  Power Point or Acrobat
      electronic formats are favored and will pre-loaded on the
      Windows-basede meeting laptop prior to the meeting.
=20
Time: Usually 15-30 Minutes
=20
Electronic Archival:
=20
      Presentations will be archived under the IBIS Summits site
      and also must be submitted in time for uploading and copying.
      Final submission deadline is:
=20
         Wednesday, February 1, 2006
=20
      Otherwise, you should bring 50 copies.
=20
If you plan a presentation, please supply the following information
as soon as possible:
=20
      Tentative Title:
      Presenter:
      E-mail address:
      Company:
      Telephone:
=20
      Estimated Time:
=20
Send to:
=20
      Bob Ross <bob@teraspeed.com>
=20

AGENDA
=20
The agenda includes presentations, discussions, breaks, and a FREE
lunch.  The agenda details will be developed as proposals are
received.  So far, several technical and overview presentations are
planned including these subjects (with several others pending):
=20
  Michael Mirmak, Intel Corp, IBIS Chair's Report and Roadmap
  Todd Westerhoff, Cisco Systems, Current Status - IBIS 4.1 Macro
    Library for Simulator Independent Modeling
  Arpad Muranyi, Intel Corp., IBIS Macro Model Library - Technical
    Overview
  Bob Ross, Teraspeed Consulting Group, Asian IBIS Summit Feedback
  Sam Chitwood, Sigrity, Touchstone format improvement topic
  Ian Dodd, Mentor Graphics, IBIS Measurement Reporting topic
=20

LIST OF NEARBY HOTELS
=20
The hotel and travel Link provides a conference hotel discount, and
use internet search engines other good lodging deals:
=20
     http://www.designcon.com/2006/conference/hotel_and_travel.html
=20

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2><FONT face=3D"Times New Roman" =
size=3D3>To=20
All:<BR><BR>This is the third Announcement for the DesignCon 2006 IBIS=20
Summit<BR>Meeting held in Santa Clara, California.<BR>&nbsp;<BR>Note, =
because of=20
the interest in Monday tutorial sessions, we have<BR>moved the IBIS =
Meeting to=20
Thursday on the last 1/2 day of DesignCon.<BR>&nbsp;<BR>We are seeking =
Sponsors=20
for the IBIS meeting to cover the expenses<BR>for a Free lunch and=20
refreshments.<BR>&nbsp;<BR>Best=20
Regards,<BR>Fred<BR>&nbsp;<BR>-------------------------------------------=
- ----------------------------<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
IBIS=20
SUMMIT<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
THIRD CALL=20
FOR<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
PARTICIPATION &amp;=20
PRESENTATIONS<BR>--------------------------------------------------------=
- ---------------<BR>&nbsp;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
I B I S&nbsp;&nbsp; S U M M I T&nbsp;&nbsp; M E E T I N=20
G<BR>&nbsp;<BR>Time/Date:&nbsp; Thursday, February 9, 2006 8:00 AM to =
5:00=20
PM<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
(MOVED=20
FROM MONDAY)<BR>&nbsp;<BR>Location:&nbsp;&nbsp; Santa Clara Convention=20
Center<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;=20
Santa Clara, CA<BR>&nbsp;<BR>Content:&nbsp;&nbsp;&nbsp; Presentations =
and=20
Discussions<BR>&nbsp;<BR>Purpose:&nbsp;&nbsp;&nbsp; Solicit and Exchange =
IBIS=20
Model Related Information=20
and<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
=20
Ideas.<BR>&nbsp;<BR>Sponsors:&nbsp;&nbsp; Applied Simulation Technology, =
Cisco=20
Systems,=20
International<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;=20
Engineering Cornsortium=20
(DesignCon)<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;=20
We are seeking more co-sponsors.&nbsp; Please contact Bob=20
Ross<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;=20
&lt;</FONT><A href=3D"mailto:bob@teraspeed.com"><FONT face=3D"Times New =
Roman"=20
size=3D3>bob@teraspeed.com</FONT></A><FONT face=3D"Times New Roman"=20
size=3D3>&gt;.&nbsp; The Benefits to sponsors=20
include<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;=20
recognition at the meeting and acknowledgement in the=20
Calls<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; for=20
Papers and meeting=20
minutes.<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;=20
Your financial support strengthens the organization=20
by<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =

allowing IBIS to focus resources on industry=20
activities<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;=20
rather than raising money, and you will receive=20
generous<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;=20
thanks for your support.<BR>&nbsp;<BR>DesignCon 2006=20
Conference:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;=20
February 6 - February 9,=20
2006<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
; Santa=20
Clara Convention=20
Center<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;=20
Santa Clara,=20
CA<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;=20
Exhibit registration is Free if you register=20
before<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;=20
February 6, 2006, and conference discounts=20
before.<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;=20
</FONT><A href=3D"http://www.designcon.com/2006/"><FONT face=3D"Times =
New Roman"=20
size=3D3>http://www.designcon.com/2006/</FONT></A><BR><FONT =
face=3D"Times New Roman"=20
size=3D3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;=20
</FONT><A href=3D"http://www.designcon.com/2006/registration/"><FONT=20
face=3D"Times New Roman"=20
size=3D3>http://www.designcon.com/2006/registration/</FONT></A><BR><FONT =

face=3D"Times New Roman" size=3D3>&nbsp;&nbsp;&nbsp; =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;=20
Conference Catalog:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</FONT><A=20
href=3D"http://www.designcon.com/2006/pdf/dc06_catalog.pdf"><FONT=20
face=3D"Times New Roman"=20
size=3D3>http://www.designcon.com/2006/pdf/dc06_catalog.pdf</FONT></A><BR=
><FONT=20
face=3D"Times New Roman" size=3D3>&nbsp;<BR>IBIS Booth: Come visit the =
IBIS Booth to=20
meet attendees and pick=20
up<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
IBIS=20
information.<BR>&nbsp;<BR><BR>BACKGROUND<BR>&nbsp;<BR>DesignCon is the =
premier=20
annual Silicon Valley event for the electronic<BR>design automation =
(EDA) and=20
semiconductor industry.&nbsp; Topics of current<BR>interest to the EIA =
IBIS Open=20
Forum are addressed at DesignCon.<BR>&nbsp;<BR>This meeting will be =
conducted as=20
a formal IBIS Summit Meeting.<BR>Presentations are expected to be =
available and=20
archived in an electronic<BR>format, and minutes of the meeting will be =
issued.=20
Any pending formal<BR>decisions (votes) will be announced at least two =
weeks=20
prior to the<BR>meeting.<BR>&nbsp;<BR><BR>CALL FOR=20
PARTICIPANTS<BR>&nbsp;<BR>People involved in IBIS Model development, EDA =
tool=20
development, and<BR>digital circuit design are invited to participate in =
the=20
Summit meeting.<BR>If you plan to participate, please register with the=20
information below:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
Name:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; E-mail=20
address:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
Company:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
Telephone:<BR>&nbsp;<BR>Send=20
to:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Fred =
Balistreri&nbsp;=20
&lt;</FONT><A href=3D"mailto:fred@apsimtech.com"><FONT face=3D"Times New =
Roman"=20
size=3D3>fred@apsimtech.com</FONT></A><FONT face=3D"Times New Roman"=20
size=3D3>&gt;<BR>&nbsp;<BR>Registration deadline is Wednesday, February =
1, 2003 to=20
receive the<BR>free lunch.<BR>&nbsp;<BR>&nbsp;<BR>CALL FOR=20
PRESENTATIONS<BR>&nbsp;<BR>We are seeking presentations from individuals =
who=20
have experiences<BR>of interest to the IBIS modeling community.&nbsp; In =
the=20
past, these have<BR>included, but not limited=20
to:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Demonstrations of =
modeling=20
techniques<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Explanations of =
behavioral=20
algorithms<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Descriptions of =
difficulties=20
encountered<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Model=20
correlation<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Modeling building=20
experiences<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Comparisons to other =

modeling methods<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; New techologies =
for=20
modeling buffers and component<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
New=20
technologies for modeling packaging and=20
interconnect<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
etc.<BR>&nbsp;<BR>Presentations may be addressed to any and all levels =
of IBIS=20
experience,<BR>from beginning to advanced.<BR>&nbsp;<BR>Presentation=20
Format:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A conference laptop =
with LCD=20
projection.&nbsp; Power Point or =
Acrobat<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
electronic formats are favored and will pre-loaded on=20
the<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Windows-basede meeting laptop =
prior to the=20
meeting.<BR>&nbsp;<BR>Time: Usually 15-30 =
Minutes<BR>&nbsp;<BR>Electronic=20
Archival:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Presentations will =
be=20
archived under the IBIS Summits site<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
and also=20
must be submitted in time for uploading and=20
copying.<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Final submission deadline=20
is:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
Wednesday,=20
February 1, 2006<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Otherwise, =
you=20
should bring 50 copies.<BR>&nbsp;<BR>If you plan a presentation, please =
supply=20
the following information<BR>as soon as=20
possible:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tentative=20
Title:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
Presenter:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; E-mail=20
address:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
Company:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
Telephone:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Estimated=20
Time:<BR>&nbsp;<BR>Send to:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
Bob Ross=20
&lt;</FONT><A href=3D"mailto:bob@teraspeed.com"><FONT face=3D"Times New =
Roman"=20
size=3D3>bob@teraspeed.com</FONT></A><FONT face=3D"Times New Roman"=20
size=3D3>&gt;<BR>&nbsp;<BR><BR>AGENDA<BR>&nbsp;<BR>The agenda includes=20
presentations, discussions, breaks, and a FREE<BR>lunch.&nbsp; The =
agenda=20
details will be developed as proposals are<BR>received.&nbsp; So far, =
several=20
technical and overview presentations are<BR>planned including these =
subjects=20
(with several others pending):<BR>&nbsp;<BR>&nbsp; Michael Mirmak, Intel =
Corp,=20
IBIS Chair's Report and Roadmap<BR>&nbsp; Todd Westerhoff, Cisco =
Systems,=20
Current Status - IBIS 4.1 Macro<BR>&nbsp;&nbsp;&nbsp; Library for =
Simulator=20
Independent Modeling<BR>&nbsp; Arpad Muranyi, Intel Corp., IBIS Macro =
Model=20
Library - Technical<BR>&nbsp;&nbsp;&nbsp; Overview<BR>&nbsp; Bob Ross, =
Teraspeed=20
Consulting Group, Asian IBIS Summit Feedback<BR>&nbsp; Sam Chitwood, =
Sigrity,=20
Touchstone format improvement topic<BR>&nbsp; Ian Dodd, Mentor Graphics, =
IBIS=20
Measurement Reporting topic<BR>&nbsp;<BR><BR>LIST OF NEARBY=20
HOTELS<BR>&nbsp;<BR>The hotel and travel Link provides a conference =
hotel=20
discount, and<BR>use internet search engines other good lodging=20
deals:<BR>&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp; </FONT><A=20
href=3D"http://www.designcon.com/2006/conference/hotel_and_travel.html"><=
FONT=20
face=3D"Times New Roman"=20
size=3D3>http://www.designcon.com/2006/conference/hotel_and_travel.html</=
FONT></A><BR><FONT=20
face=3D"Times New Roman" =
size=3D3>&nbsp;</FONT><BR></FONT></DIV></BODY></HTML>

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------------------------------

End of ibis-users V1 #74
************************