Patent 9213927 was granted and assigned to Lexmark International, Inc. on December, 2015 by the United States Patent and Trademark Office.
A method of operating a module is disclosed. The method includes adjusting an impedance between a power connection and a ground connection to regulate a power connection voltage targeted to a predetermined target voltage, and setting a module communication address based on the adjustment. The power connection voltage is a voltage on the power connection. Other methods are disclosed.