[ibis-macro] Re: Samples per bit for AMI

  • From: Mike Steinberger <msteinb@xxxxxxxxxx>
  • To: ibis-macro@xxxxxxxxxxxxx
  • Date: Mon, 03 Oct 2011 11:02:30 -0500

Arpad-
You ask a good question, but I'm not sure there's a good answer. I suggest that we wait until we have some experience which is relevant to your question before we attempt to state an answer.
"Better to remain silent and let the World think you a fool than to open your mouth and remove all doubt." 

I think this is one of those times.

Mike S.

On 10/03/2011 10:51 AM, Muranyi, Arpad wrote:

I would like to ask a question before I write a BIRD
for spelling out the rule that samples_per_bit is
determined by the EDA tool and the AMI model has to
be able to handle ANY sapling rate the tool decides
to use.

Aside from "bad" models which were clearly developed
in an inferior manner, what if there is a real need
to limit the minimum or maximum samples_per_bit for
some valid and justifiable technical reasons?

I know the model could have a sample rate converter
to accommodate some of those needs, but this adds an
overhead to the execution time.  What if the model
maker wants a super efficient algorithm to be able to
go to extremely low BER results?  Etc...

I feel that leaving the determination of the sampling
rate entirely up to the EDA tool may not always work
and that we need to have a way for the model to let
the EDA tool know what the limits for samples_per_bit
are.

Comments?

Thanks,

Arpad
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