The SL811HS USB Host embedded host controller is a single chip USB embedded host solution that can communicate with either full speed or low-speed USB peripherals. The SL811HS can interface to devices such as microprocessors, micro-controllers, DSPs or directly to a variety of buses such as ISA, PCMCIA and others. The SL811HS USB controller conforms to the low and full speed requirements of Universal Serial Bus Specification, Revision 1.1, September 23, 1998. The VxWorks host controller driver conforms to the Universal Serial Bus Specification, Revision 1.1, September 23, 1998 and can be integrated into the Wind River Systems’ VxWorks USB host driver stack to provide a complete USB solution for the VxWorks environment.