"Data is for modeling purposes, etc." language is usually just copied
from the IBIS standard document. As for what it means, well, welcome to
the litigious society. Apparently vendors are scared we might use this
(fairly specific) data to design something, and then sue them when it
doesn't work the way the IBIS file says it does.
Hmm... There's an idea ;-)
IBIS seems to be an agreement between Some semiconductor suppliers, and
Some software suppliers. Nowhere near all, and I keep finding IC
suppliers that have less than 1 clue about IBIS. Many of them haven't
integrated IBIS modelling into their design process, so IBIS models are
not done unless some customer asks for them. In which case, "Please
wait six weeks while we figure out what you're talking about" seems to
be a common refrain. Some of the time, there's only one person at the
company who does IBIS, and he's also a VP of something, so you know how
much free time he probably has (NONE).
And I hate getting the "We don't usually do this, but as a courtesy,
we'll do it this time." line.
I suspect generating IBIS models would be much simpler if it was done as
part of the IC vendors design process, and not tacked on as an
afterthought. Wishful thinking?
-- Laurence Michaels Simulation Support Engineer - General Datacomm, Inc. The light at the end of the tunnel is the muzzle flash.
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