Difference between the specparam and parameter constructs, Computer Engineering

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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:

Specparam

Parameter

Can  be  defined  within  both  module  and  specify block.

Must be defined outside of the specify block and within module.

A  specparam  can  be  assigned  using  another

specparam or parameter or combination of both.

Parameter  can't be  assigned  the  value  of  a specparam.

Value overridden using SDF annotation.

Can  be  overridden  during  instantiation  or using defparam.

 


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