US Patent 7382230 Comparing counter contents for timing critical applications

An electrical circuit and method to compare contents of counter circuits. The electrical circuit comprises a first counter circuit and a second counter circuit electrically connected to a flip-flop circuit through a logic circuit and OR gates connected to the flip flop circuit. The first counter circuit is for receiving a first enable signal and generating a first output signal. The second counter circuit is for receiving a second enable signal and generating a second output signal. The first enable signal and the second enable signal are for comparing the first output signal to the second output signal. The flip-flop circuit is for generating a first status signal defining a first relationship between the first output signal and the second output signal. The logic circuit is for generating a second status signal defining a second relationship between the first output signal and the second output signal.