INTEGRATED CIRCUIT HAVING ADDITIONAL PORT

摘要

PROBLEM TO BE SOLVED: To provide an integrated circuit that is provided with a packet router, whose extension is facilitated. SOLUTION: This invention provides the integrated circuit that is provided with a packet router where function modules are connected by respective ports. One of the ports acts like a socket port with respect to an extension socket. The extension socket provides a plurality of additional extension ports, to which additional function modules can be connected. All of the ports, including the extension socket port and connected to the packet router, preferably exist in a common address space of the integrated circuit.