Subject: Re: [IBIS-Users] using an ibis model
From: Syed Huq (shuq@cisco.com)
Date: Thu Sep 26 2002 - 20:23:40 PDT
Yoni,
See comments inline: Syed
> From: "Angulo, John" <john_angulo@mentorg.com>
> To: "'ibis-users@eda.org'" <ibis-users@eda.org>
> Subject: [IBIS-Users] using an ibis model
> Date: Thu, 26 Sep 2002 17:15:46 -0700
> MIME-Version: 1.0
>
> The following is posted on behalf of Yoni Tzafrir at Siliquent
Technologies. Please send all private replies to yonitz@siliquent.com
only.
>
> -------------------------------
> hi,
> i'm using an input/output ibis model buffer, in my Hspice simulation.
> from my netlist:
>
> b_output nd_pu nd_pd out in en v_out_of_in
> + file='filname.ibs'
> + model='modelname'
>
> and i've connected the in node to my netlist as a reciever, and it seems
to
> work well.
>
> but looking at the ibis file i am seeing:
>
> Pin] signal_name model_name R_pin L_pin C_pin
> 1 PAD bsstl2c2_a NA NA NA
>
> 1. what does it mean, does the buffer has one pin only?
If the [Pin] section of the ibis file has one line then yes, this is a
single buffer model.
> 2. which one is it (the in-pin the out-pin the v_out_of_in)?
To find out if the bsstl2c2_a is in-pin or out-pin, search for the keyword
[Model_type] and see what the field says. It could be an I/O also.
> 3. if the answer to the first question is yes, so how do i connect this
pin
> to my circuit in the netlist?
>
Item2 should solve this question as well.
> please ansewr, the Hspice user-guide is not clear on this issue
> yoni.
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