INTEGRATED CIRCUITS IN THE FIELD OF POINTING DEVICES AND POWER MANAGEMENT; ELECTRONIC PROTOCOL CONVERTERS IN THE FIELD OF POINTING DEVICES AND POWER MANAGEMENT; CONTROLLERS, NAMELY MICROCONTROLLERS IN THE FIELD OF POINTING DEVICES AND POWER MANAGEMENT; CONTROLLERS, NAMELY POWER MANAGEMENT CONTROLLERS; ELECTRONIC APPARATUS FOR POINTING DEVICES NAMELY TRACK BALLS, TOUCH POINTS, TOUCH SCREENS AND COMPUTER MICE