Generics: An Example

It is possible to indicate a generic timing delay and then specify the exact delay at instantiation

COMPONENT and2 IS
   GENERIC (tplh, tphl : TIME);
   PORT ( input1, input2 : IN BIT;
          output : OUT BIT);
END COMPONENT;

The example above declares the interface to the and2 component
The propagation time for high-to-low and low-to-high transactions can be specified later