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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