PA-RISC Visualize Workstation Universal Serial Bus
Table Of Contents

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USB Support: PA-RISC Hardware
• Root hub is based on a National PC87560 Super I/O chip.
• This is an OHCI controller.
• There are two ports, both located on the rear panel. There is no provision for
enabling the USB pins on any EVC connectors present in the SPU.
• No USB hub is required for the keyboard and mouse in the USB User Interface Kit.
Future monitors may include or support a built-in hub.
• Full 500 mA Vcc+ per port is available.
• One or more USB PCI cards (similar to that
pictured below) may be used in addition to
the internal USB ports. {A supported card list
was unavailable at publication.}
SPU USB Ports
Style A receptacles
Typical PCI-USB card










