MODEL selector in IBIS

When you have the model selector set up in IBIS, ibis2signoise will translate them into DML automatically.

Assign this model to a part in Allegro PCB SI. In the model assignment dialog, click RefDesPins. Next to "Signal Model" field, there is "Prog. Buffer ->". You should see the programmable buffers (Model Selector) right there.

Attached a bmp file to show how it looks like.

Hope this helps.

Lance Wang

Thanks iwnag

Dear Lance

Thank you for your answer. We realize the model selection feature in PCB SI. How about the feature of multiple-pin model assignment? It means we need to assign the same kind of buffer model for many pins in one time. Thank you for your helps in advance.

BRs,

Sogo Hsu

Sogo,
At this time, you have to do this pin by pin.
Id this often heppenning to a lot of pins set together?

Lance

Dear Lance.

Sure. You can image if your would like to perform corner test for FSB. There are totally 64 data bits plus 4 strobe lines. The feature is indeed necessary.

Sogo Hsu