A device, comprising: a first bus; a second bus; a first set of devices (108, 110) coupled to the first bus, the first set of devices configured to communicate over the first bus according to a first communication protocol; and a second set of devices (104, 106) coupled to the first bus, the second set of devices configured to communicate over the first bus according to both the first communication protocol and a second communication protocol, wherein in a first mode of operation over the first bus, the first set of devices and second set of devices concurrently communicate over the first bus using the first communication protocol; in a second mode of operation over the first bus, the second set of devices communicate with each other using the second communication protocol over the first bus, and the first set of devices stop operating over the first bus; characterized in that the first set of devices is also coupled to the second bus and in that at least one of the devices of the second set of devices is configured to send a disable command over the first bus to cause the first set of devices to stop operating over the first bus while the second set of devices operate in the second mode over the first bus; and to send an enable command over the second bus to cause the first set of devices to resume operating over the first bus while the first bus switches to operate in the first mode. a first bus; a second bus; a first set of devices (108, 110) coupled to the first bus, the first set of devices configured to communicate over the first bus according to a first communication protocol; and a second set of devices (104, 106) coupled to the first bus, the second set of devices configured to communicate over the first bus according to both the first communication protocol and a second communication protocol, wherein in a first mode of operation over the first bus, the first set of devices and second set of devices concurrently communicate over the first bus using the first communication protocol; in a second mode of operation over the first bus, the second set of devices communicate with each other using the second communication protocol over the first bus, and the first set of devices stop operating over the first bus; characterized in that the first set of devices is also coupled to the second bus and in that at least one of the devices of the second set of devices is configured to send a disable command over the first bus to cause the first set of devices to stop operating over the first bus while the second set of devices operate in the second mode over the first bus; and to send an enable command over the second bus to cause the first set of devices to resume operating over the first bus while the first bus switches to operate in the first mode. in a first mode of operation over the first bus, the first set of devices and second set of devices concurrently communicate over the first bus using the first communication protocol; in a second mode of operation over the first bus, the second set of devices communicate with each other using the second communication protocol over the first bus, and the first set of devices stop operating over the first bus; characterized in that the first set of devices is also coupled to the second bus and in that at least one of the devices of the second set of devices is configured to send a disable command over the first bus to cause the first set of devices to stop operating over the first bus while the second set of devices operate in the second mode over the first bus; and to send an enable command over the second bus to cause the first set of devices to resume operating over the first bus while the first bus switches to operate in the first mode.