A device comprising a router, a controller and an application processor, the controller configured to interoperate at any given time either with the controller or the application processor. When the device is coupled to a host device and the router is set for interoperating with the controller in which it routes host commands (SD commands) to the controller, the router receives a host command from the host device; and in response to the received host command and based on determining that it prompts interoperating with the application processor, to interoperate with the application processor in which it routes host commands (ASSD commands) to the application processor. The router continues to interoperate with the application processor until it receives an indication from the application processor to interoperate with the controller.