A method for establishing communication between a communication protocol controller and a main controller including the steps of monitoring a communication bus using a power management device wherein the bus is electrically coupled to the protocol controller, the power management device, and the main controller residing in an initial low power mode, determining when the protocol controller is attempting to communicate with the main controller, generating a wake-up signal in response to the attempted communication, presenting the wake-up signal to the processor of the main controller, wherein the main controller enters a wake-up mode in response to the wake-up signal, reading at least one communication protocol configuration parameter from the data storage device, and initiating communication between the main controller and the protocol controller using the at least one communication protocol configuration parameter such that communication between the protocol controller and a communication protocol enabled device is maintained.