[ibis-macro] Re: Format Corner - Interpretation?
- From: "Muranyi, Arpad" <Arpad_Muranyi@xxxxxxxxxx>
- To: "IBIS-ATM" <ibis-macro@xxxxxxxxxxxxx>
- Date: Tue, 29 Mar 2011 11:51:56 -0700
Walter,
Another question:
Does a parameter of Type Corner need Default? Or is it
not needed, or even prohibited? When would a tool make
use of a default value for them? The tool always knows
what corner it simulates, right?
Thanks,
Arpad
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From: ibis-macro-bounce@xxxxxxxxxxxxx
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Muranyi, Arpad
Sent: Tuesday, March 29, 2011 1:39 PM
To: IBIS-ATM
Subject: [ibis-macro] Re: Format Corner - Interpretation?
Walter,
Thanks for the answer. However, I think that's not the
end of the story yet...
If the value of corner (and the rest of the predefined
parameters) are set by the tool, the following statements
don't make sense in BIRD 124:
| "xyz" is a predefined AMI parameter of Type String and Usage Info
(Usage Info) is information that goes from the .ami file
to the tool. If these parameters come FROM the tool they
can't be Info.
Thanks,
Arpad
============================================================
From: Walter Katz [mailto:wkatz@xxxxxxxxxx]
Sent: Tuesday, March 29, 2011 1:22 PM
To: Muranyi, Arpad; 'IBIS-ATM'
Subject: RE: [ibis-macro] Format Corner - Interpretation?
Arpad,
Corner is determined by the EDA tool.
Walter
From: ibis-macro-bounce@xxxxxxxxxxxxx
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Muranyi, Arpad
Sent: Tuesday, March 29, 2011 2:15 PM
To: IBIS-ATM
Subject: [ibis-macro] Format Corner - Interpretation?
Hello AMI experts,
I stumbled on a question regarding how Format Corner
supposed to be interpreted by an EDA tool. Pg. 140
of the IBIS specification say this:
and pg. 141 has this:
Then on pg. 146 I see this:
and on pg. 147 I see this:
In BIRD 124 I read the following:
| "[Corner]" is a predefined AMI parameter of Type String and Usage Info
that can
| be used to create an input column in a dependency table. It has a List
format with
| the allowed values "Typ", "Slow" and "Fast".
but I don't see any text in the Specification or the BIRD that
explains how "Corner" is predefined and from where and how it
gets it value. Could someone explain this to me please? It
seems that this needs another clarification BIRD...
Thanks,
Arpad
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