The EM22xx devices have a digital communication and control interface which is compliant with the PMBus specification and is easily interfaced through the Digital Power Configurator GUI. This enables system monitors or other “smart” masters in a system to communicate with the EM2260 and EM2280 to read the value of various parameters such as input voltage, output voltage, output current, and temperature (known as telemetry). This interface also allows the system monitor to check fault status and allows the EM2260 and EM2280 to alert a system monitor if a fault occurs. This capability enables designers to build more optimized, intelligent systems because in order to optimize performance the designer needs to be able to know in real-time what is happening in the system. PMBus also means that the EM2260 and EM2280 have integrated memory and can be programmed and configured so that various fault levels and other performance values are completely optimized for a given system. For example, a user can fine tune the output voltage to the system needs.