Subject: Questions of Polarity and Enable

From: [email-masked] (Zheng SHI)
Date: Thu, 5 Dec 96 16:59:01 PST

Hi, Ibis folks:

Can anyone tell me what the sub-param Polarity and Enable of 
keyword [Model] really means? Is Polarity used only on diff 
pins? Is Enable used only on tri-state pins? How can I decide 
the Polarity and Enable of an input or output pin?

I can't find such detail information from IBIS2.1 Specification, 
can anyone give me some advices, or tell me where i can find 
the answer?

Thanks a lot,

-Zheng Shi
 [email-masked]
 Los Altos, CA.