An apparatus and method for providing a high speed linear feedback shift
register is disclosed. The high speed linear feedback shift register of
the present invention comprises multiplexer flip flop circuits. The
multiplexer gate on the input of each flip flop circuit is the only gate
between each pair of flip flop circuits of the present invention. The
linear feedback shift register of the present invention is capable of
operating as a counter that does not need to be reset. The linear feedback
shift register of the present invention may be used as a clock divider
circuit.