Disclosed is an energy metering system, apparatus and method that enables an energy meter to reduce power consumed in communication when remotely inspecting the energy meter under an energy pricing system changed depending on time. The functional unit executes instructions using operation codes provided to it which operation codes include a field referencing a special register. Where commercial breaks and length of presentation differences occur in various time zones or geographically disparate areas, the method may include utilizing synchronization points, adding new content in time gaps at a computing device andor modifying the length of the presentation to maintain synchronization among the computing devices in a group. A word-line-current control circuit forms and cuts off the current path of a write word line correspondingly to data write and data read.