The instantiation statement maps the interface of the component to other objects in the architecture
ARCHITECTURE test OF test_entity IS
COMPONENT and_gate
PORT (in1, in2 : IN BIT;
out1 : OUT BIT);
END COMPONENT;
SIGNAL S1, S2, S3 : BIT;
BEGIN
Gate1 : and_gate PORT MAP (in1 => S1,
in2 => S2, out1 => S3);
END test;
