Abstract— Packet data transfer scheme is introduced for intrachip data transfer to solve an interconnection problem. Double transmission lines are provided as a platform of the micronetwork. A protocol suitable for intra-chip data transfer is proposed to make a router as simple as possible. An application to a parallel VLSI processor is also discussed. In comparison with a multi-bus architecture the parallelism can be greatly increased under the same chip size because of the compactness of the micronetwork.