NEC's Host Offers Glimpse of WUSB Speed Modes

The NEC uPD720170 host controller can transfer data at up to 480Mbps with a range of up to 3 meters. It supports eight data transfer rates (from 53.3 to 480 Mbps) and four data transfer types (control, bulk, interrupt and isosynchronous), and can connect up to 32 physical devices simultaneously.

The host controller is based on the WiMedia MAC and WiMedia MAC-PHY interface specifications, as well as the Wireless Host Controller Interface (WHCI) specification developed by Intel with support from Microsoft, NEC, Philips, Texas Instruments and others. Reference boards will ship in the second quarter of 2006.