RE: [IBIS] how to create the ibis of gigabit ethernet??

From: Lynne D. Green <lgreen22_at_.....>
Date: Fri Jan 06 2006 - 00:16:02 PST
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




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Received on Fri Jan 6 00:16:11 2006

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