Patent ID: 8472474

Claim:
A packet communication control device which transfers a first control packet having control information when transferring the control information and a second control packet having the control information and a data packet having data when the data is attached to the control information, comprises: a plurality of sending units; a multiplexer that selects an output of the sending units; and a multiplex control circuit that controls a transfer operation of said sending units, the multiplexer control circuit including: a first arbitration circuit that arbitrates a first control packet of said sending units; a second arbitration circuit that arbitrates a second control packet of said sending units; and an arbitration control circuit that selects one of said sending units to simultaneously transfer the second control packet to a control communication pathway and the data packet attached to the second control packet to a data communication pathway according to an arbitration result of said second arbitration circuit and selects one of said sending units to transfer the first control packet to the control communication pathway during transferring of the data packet to the data communication pathway according to another arbitration result of said first arbitration circuit.