Re: [IBIS-Users] pulse/step description for v/t curves

From: Sujit Kumar-r65837 <sujit_at_.....>
Date: Wed Dec 20 2006 - 21:57:53 PST
hi Mei
 From the ibis document what I understand is;  there is only one switch 
(i.e sim time) in .s2i file to describe
the pulse. Then following queries arise:

 -- on what basis should one choose this [sim time] value?
       I need to know this because I have to generate ibis model for an 
IO pad.
     
 -- How are the following values calculated to describe the pulse i.e
      td, tr, tf, width and period.

thanks
sujit

NG,MEI-YEE wrote:

> Hi Sujit,
>
>  
>
> From my limited experience with s2ibis3, I discovered that the pulse 
> size was generated by dividing your sweep range by 100 points. If you 
> need to make it finer, you might need to edit the .spi files manually, 
> but keep in mind that the number of points allowed for version 3.2 is 
> 100 only.
>
>  
>
> Thank you.
>
>  
>
> Best regards,
>
> Mei Yee
>
> SID, Avago Technologies (Malaysia)
>
> Tel no.:604-6108515
>
> ------------------------------------------------------------------------
>
> From: owner-ibis-users@server.eda.org 
> [mailto:owner-ibis-users@server.eda.org] On Behalf Of Sujit Kumar-r65837
> Sent: Thursday, December 21, 2006 1:23 PM
> To: Sujit Kumar-r65837
> Cc: ibis-users@server.eda.org
> Subject: [IBIS-Users] pulse/step description for v/t curves
>
>  
>
> hi IBIS users
> Can anyone help me for this?
>
> Sujit Kumar-r65837 wrote:
>
> How to specify the pulse/step  description in .s2i file for 
>  generating v/t curves?
> How do you reach upon those values?
>
> -- 
>
> thanks
> sujit kumar
>
>
>
>
> +91-120-4396069
> +91-09910168788
>
> <mailto:sujit@freescale.com>
>
>  
>
> -- 
>
> thanks
> sujit kumar
>
>
>
>
> +91-120-4396069
> +91-09910168788
>
> <mailto:sujit@freescale.com>
>
>  
>

-- 
thanks
sujit kumar




+91-120-4396069
+91-09910168788





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Received on Thu, 21 Dec 2006 11:27:53 +0530

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