A device is provided comprising a bus, a first set of devices, and a second set of devices. The first set of devices is coupled to the bus and configured to communicate over the bus according to a first communication protocol. The second set of devices is coupled to the bus and configured to communicate over the bus according to both the first communication protocol and a second communication protocol. In a first mode of operation, the first set of devices and second set of devices may concurrently communicate over the bus using the first communication protocol. In a second mode of operation, the second set of devices communicate with each other using the second communication protocol over the bus, and the first set of devices to stop operating on the bus.