RE: [IBIS-Users] Re: How simulate and I/O buffer like only input model?

From: lgreen <lgreen22_at_.....> Date: Thu Mar 10 2005 - 20:16:06 PST · This archive was generated by hypermail 2.1.8 : Thu Mar 10 2005 - 20:18:15 PST

Hello, Ramiro ,

One known difference is that HSPICE does not include the default package
model.  It only puts the "bare buffer" into the netlist.

Once you take things like that into account, the comparisons should be
easier to see.

- Lynne

-----Original Message-----
From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On Behalf
Of RODRIGUEZ_LECONA_RAMIRO
Sent: Thursday, March 10, 2005 9:25 AM
To: Flora, Matthew
Cc: ibis-users@eda.org; ibis-info@eda.org
Subject: [IBIS-Users] Re: How simulate and I/O buffer like only input model?

Hi Matthew, 

     I am not user of HyperLinx, but I am interesed to know how HyperLinx 
simulates IBIS models, in special how Hyperlinx simulates different types of

buffers by means of IBIS models. Is it possible that there are differencies 
in the accuracy of IBIS simulations between HSPICE and Hyperlinx?  With this

information I can consider to use HyperLinx. 

                  Regards, 

Flora, Matthew escribió: 

> Dear Ramiro, 
> 
> Were the Customer Support people for HyperLynx unable to help you? 
> 
> Best regards,
> Matthew Flora
>   
> 
>> -----Original Message-----
>> From: owner-ibis-users@eda.org 
>> [mailto:owner-ibis-users@eda.org] On Behalf Of RODRIGUEZ_LECONA_RAMIRO
>> Sent: Thursday, March 10, 2005 7:56 AM
>> To: ibis-users@eda.org; ibis-info@eda.org
>> Subject: [IBIS-Users] How simulate and I/O buffer like only 
>> input model? 
>> 
>> Hi all,  
>> 
>>         Someone knows how Hyperlinx simulates an IBIS model 
>> of an I/O buffer 
>> when I want to see the model like a single input model?  
>> 
>>         In HSPICE the syntax for an input/output buffer 
>> element card is  
>> 
>>         B_IO nd_pu nd_pd nd_out nd_in nd_en V_out_of_in [nd_pc nd_gc]  
>> 
>>         In order to simulate this buffer like a single input 
>> model I have to 
>> set the buffer in Disable state, but which is my input node? 
>> Is it nd_out? 
>> If it is, then it doesn't import the nd_in node and V_out_of_in node 
>> connections?  
>> 
>>          And what happened in Hyperlinx? Do I have to 
>> consider the same 
>> criteria for the nodes?  
>> 
>>          Best Regards,  
>> 
>>          Ramiro  
>> 
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