Subject: Re: [IBIS-Users] Model Selector Keyword for Series Pin Mapping
From: Ross, Bob (bob_ross@mentorg.com)
Date: Wed Apr 24 2002 - 17:14:20 PDT
Hello Moshiul:
I believe [Model Selector] should work with Series or
Series_switch models that would be listed using
{Series Pin Mapping]. So it looks like you have
uncovered an ibischk3 bug.
Could you send me directly a complete (but simplified) test
model that demonstrates the Error. I want to check to see if there
are any other related issues.
Your second case is not correct for the purposes of connecting
one switch at a time. Both are connected in parallel. However,
if manually comment one line or the other, then it would work
for just those pins.
Best Regards,
Bob Ross
Mentor Graphics
"Haque, Moshiul" wrote:
>
> Hi All,
> While creating an IBIS model for series switch, I have noticed that the
> IBISCHK3.2 gives an error if the model selector keyword is used to define
> two different models for the same model_name in series pin mapping.
> IBISCHK3.2 gives an error saying that the model (that is defined in the
> series pin mapping under model_name column) is not defined. Model selector
> keyword works fine for other models (input, terminator or 3-state) Any idea
> what did I do wrong?
>
> [Series Pin Mapping] pin_2 model_name function_table_group
> |
> 3 2 Q3384A_IO_S 1
>
> [Model Selector] Q3384A_IO_S
> |
> Q3384A_IO_S_33 3.3 volt Vcc
> Q3384A_IO_S_25 2.5 volt Vcc
>
> If I use two different series pin mapping with separate model but with same
> pin mapping will that be an incorrect approach?
>
> Example:
> [Series Pin Mapping] pin_2 model_name function_table_group
> |
> 3 2 Q3384A_IO_S_25 1
> 3 2 Q3384A_IO_S_33 1
>
> Any suggestion would be greatly appreciated.
>
> Regards
> Moshiul Haque
> Standard Linear and Logic Marketing
> Texas Instruments Incorporated
>
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