Re: another new parser question ibischk3 V3.2.6

Syed:

The problem is that the uploaded executables were uploaded with
the print flag for debugging turned on. Replacement executables
with the PRINT switch turned off (at least for Unix) are
now uploaded at:

  http://www.eda.org/pub/ibis/ibischk3/

Bob Ross
Mentor Graphics

Syed Huq wrote:
>
> Dear Gurus:
>
> I am quite amazed by the amount of information the parser reports.
> Let me explain and I would like to understand the reasons too:
>
> 1) For every pin of this 456BGA package, it reports that the R_pin, L_pin
> and C_pin are missing. I already know this simply by opening the IBIS file
> and looking at the [Pin] list section.
>
> Why do I need to scroll thru all these:
> .
> <parser output>
> .
> PIN:signal_name:<DQ[71]>
> PIN:model_name:<XYZ_IO>
> PIN:R_Pin:NOT SET
> PIN:L_Pin:NOT SET
> PIN:C_Pin:NOT SET
> PIN:Pin:<A3>
> PIN:signal_name:<VDDQ>
> PIN:model_name:<POWER>
> PIN:R_Pin:NOT SET
> PIN:L_Pin:NOT SET
> PIN:C_Pin:NOT SET
> PIN:Pin:<A4>
> PIN:signal_name:<DQ[67]>
> PIN:model_name:<XYZ_IO>
> PIN:R_Pin:NOT SET
> PIN:L_Pin:NOT SET
> PIN:C_Pin:NOT SET
> .
> .
>
> 2) Why does the parser output print all the V/I and V/T table data ?
> .
> Pulldown:
> Voltage:-2.5, Typ:-0.12, Min:-0.09518, Max:-0.13
> Voltage:-2.3, Typ:-0.12, Min:-0.09518, Max:-0.13
> Voltage:-2.1, Typ:-0.12, Min:-0.09518, Max:-0.13
> .
> .
>
> 3) Why does the parser not show the value of Cref clearly defined in
> the IBIS model ?
>
> Parser:
> Model Name:XYZ_TRI
> Model_type:3-state
> Polarity:Non-Inverting
> Enable:Active-High
> Vinl:NOT SET
> Vinh:NOT SET
> Vmeas:1.500000
> Cref:0.000000 <------ ??
>
> IBIS:
> [Model] XYZ_TRI
> Model_type 3-state
> Polarity Non-Inverting
> Enable Active-High
> Vmeas = 1.50V
> Cref = 50.00pF <------ It's there ..
>
> 4) Why does the parser not show the dT values for Ramp ?
>
> <parser output>
> dV/dt_r:Typ:1.150000/0.000000, Min:0.820000/0.000000, Max:1.280000/0.000000
> dV/dt_f:Typ:1.250000/0.000000, Min:1.050000/0.000000, Max:1.360000/0.000000
>
> IBIS model:
> dV/dt_r 1.15/0.31n 0.82/0.37n 1.28/0.22n
> dV/dt_f 1.25/0.22n 1.05/0.32n 1.36/0.15n
>
> 5) Is there a switch a user could use to minimize a lot of these messages ?
>
> Regards,
> Syed
 
Received on Wed Jan 10 13:21:35 2001