What is the difference between the specparam and parameter constructs?
Specparam is a special kind of parameter which is intended to specify only timing and the delay values. Key differences in using the specparam and the parameter constructs are:
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Specparam
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Parameter
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Can be defined within both module and specify block.
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Must be defined outside of the specify block and within module.
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A specparam can be assigned using another
specparam or parameter or combination of both.
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Parameter can't be assigned the value of a specparam.
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Value overridden using SDF annotation.
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Can be overridden during instantiation or using defparam.
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