[ibis-macro] How to make tap coefficients Reserved Parameters with Table
- From: "Muranyi, Arpad" <Arpad_Muranyi@xxxxxxxxxx>
- To: "ibis-macro@xxxxxxxxxxxxx" <ibis-macro@xxxxxxxxxxxxx>
- Date: Mon, 12 Dec 2011 19:24:27 +0000
All,
I just couldn't leave this idea alone, and looked at
BIRD 132 to see how Tables could be used for taps.
Here is an example that I can imagine:
(DFE_taps (Usage InOut) (Type String Float)
(Table
(Labels "Tap name" "Tap value")
("tp-1" -0.1)
("tp0" 0.8)
("tp1" 0.1)
)
(Description "Initial DFE tap coefficients.")
)
I don't see why this couldn't be under the Reserved parameters
section. Note that it doesn't have to be a required parameter
because not all models may have a DFE. The specification can
provide a detailed description on when/how/why this parameter
is used by the EDA tool and model, etc...
A more elaborate version of the above example is an equivalent of
the example on pg. 150 of the v5.0 spec (including Range and Default):
(DFE_taps (Usage InOut) (Type String Float Float Float Float)
(Table
(Labels "Tap name" "Typ value" "Min value" "Max value" "Default value")
("-2" 0.1 -0.1 0.2 0.1)
("-1" 0.2 -0.4 0.4 0.2)
("0" 1 -1 2 1)
("1" 0.2 -0.4 0.4 0.2)
("2" 0.1 -0.1 0.2 0.1)
)
(Description "DFE tap coefficients.")
)
Comments? Questions?
Thanks,
Arpad
================================================================
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- » [ibis-macro] How to make tap coefficients Reserved Parameters with Table - Muranyi, Arpad
- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Walter Katz
- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Ambrish Varma
- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Muranyi, Arpad
- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Muranyi, Arpad
- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Mike Steinberger
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- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Walter Katz
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- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Muranyi, Arpad
- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Mike Steinberger
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- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Mike Steinberger
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- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Mike Steinberger
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- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- Mike Steinberger
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- » [ibis-macro] Re: How to make tap coefficients Reserved Parameters with Table- David Banas
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