Autotesting Speed-Independent Sequential Circuits

Speed-independent sequential circuits are characterized by an input-output behavior which is independent of the actual delays of the circuitry; this means that any unbounded delay is allowed in the component gates. This performance is accomplished by means of a control circuit which recognizes when the circuit is ready to accept a next input datum, and therefore a speed independent synthesis is realizable if and only if the input source can be controlled by the circuit itself.