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GENERIC COVERAGE GROUPS



Generic coverage groups can be written by passing their traits as arguments to the coverage constructor. This allows creating a reusable coverage group which can be used in multiple places.

For example, To cover a array of specified index range.


covergroup cg(ref int array, int low, int high ) @(clk);
coverpoint// sample variable passed by reference
{
bins s = { [low : high] };
}
endgroup

int A, B;
rgc1 = new( A, 0, 50 );// cover A in range 0 to 50
rgc2 = new( B, 120, 600 );// cover B in range 120 to 600


The example above defines a coverage group, gc, in which the signal to be sampled as well as the extent of the coverage bins are specified as arguments. Later, two instances of the coverage group are created; each instance samples a different signal and covers a different range of values.



Index
Introduction
Cover Group
Sample
Cover Points
Coverpoint Expression
Generic Coverage Groups
Coverage Bins
Explicit Bin Creation
Transition Bins
Wildcard Bins
Ignore Bins
Illegal Bins
Cross Coverage
Coverage Options
Coverage Methods
System Tasks
Cover Property

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