The other problems with IEEE1394 are that it limits the number of connectable devices to 63 and the maximum transmission distance of the network up to 500m. To solve these problems, NEC has developed the prototype switch LSI with an advanced firmware library. It provides high-speed hardware packet routing between two IEEE1394 buses, while maintaining full compatibility with conventional IEEE1394 devices. NEC will commercialize switch LSIs and related products in early 2001. Parts of this project were supported by the Telecommunications Advancement Organization of Japan.
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