[IBIS] Re: [IBIS-Users] IBIS version 4.2

Hello all,

Thanks a lot for your timely feedback.

Regards,
Shantala

On Tue, Apr 21, 2009 at 1:08 AM, Lynne D. Green <lgreen22@mindspring.com>wrote:

>  Hello, Shantala,
>
> There is one significant change in data interpretation between 3.2 and 4.x.
>
> In 3.2, it was up to the tool/user to decide how to interpret V-t tables
> that did not have the same starting time.  (Typically, one V-t table would
> start at 0nsec and the other at 50nsec or more.)  In 4.x, both tables are
> assumed to start at 0nsec, no matter what the first time point in the table
> is.  This pushes the responsibility for "backing out" any SPICE effects on
> the model maker, rather than the tool/user.
>
> Personally, I find it useful to set [IBIS Ver] to 4.2 for parsing, since
> the additional messages can be helpful.  Of course, I also parse with the
> original [IBIS Ver] in the model file.
>
> 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-users@eda.org [mailto:owner-ibis-users@eda.org] *On
> Behalf Of *shantala hegde
> *Sent:* Monday, April 20, 2009 6:58 AM
> *To:* ibis-users@eda.org; ibis@eda.org
> *Subject:* [IBIS-Users] IBIS version 4.2
>
>   Hi all,
>
> Does IBIS ver 4.2 supports models generated with 3.2.What are the extra
> feauters with 4.2 version.
>
> For example, if I have generated the model with 3.2 version and later if I
> change the version to 4.2, will it be compatiable with 4.2 checks.
>
> To what extent will it affect the end users.
>
> Please let me know on this.
>
> Thanks,
> Shantala
>
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