... Host Controller Interface (UHCI) Design Guide, Revision z USB Architecture 0 = Disable (default). ... more information about SMM, see Chapter 20 in Pentium Processor User's Manual, Volume 3: Architecture and Programming Manual, 1994, which can be ordered from Intel by calling 1-800-548-4725. ... Platform sample code is in Platform\Cepc\Drivers\Usb. Built on Wednesday, October 04, 2000 USB Architecture A USB system consists of a host computer, one or more USB devices, and a physical...