A controlling method of a motor state described herein detects the motor operation in a regeneration state or a motor state. The elimination of the wolf tone may be done through either correction of surface instability or dynamic frequency correction by a signal generator. The circuit includes memory blocks that respectively include a plurality of sub memory blocks, cache memory blocks that respectively correspond to the memory blocks, and a tag memory control unit. The male body interengages the sliding sleeve and moves therewith during coupling and uncoupling.