Patent ID: 7925854

Claim:
A semiconductor device for use in a serial interconnection configuration of a plurality of devices of mixed type wherein the plurality of devices are serially interconnected, the semiconductor device comprising: an input for receiving a serial input containing a device type identification, a command and a device address identification; a device type holder for holding a device type indicating the type of the device; an address holder for holding an assigned device address, the assigned address indicating the address of the device; a first comparator for comparing the device type identification of the serial input to the device type held by the device type holder to determine whether the device type identification relates to the held device type, and for providing a device type comparison result; a second comparator for comparing the device address identification to the device address held by the address holder to determine whether the device address identification relates to the held device address, and for providing an address comparison result; and a command executor for executing the command in response to the device type comparison result and the address comparison result.