A computer system having bus controller operating code stored in a non operating system managed, extended portion of system memory. In one example, the operating code is executed by a bus controller for a computer bus conforming to the Universal Serial Bus (USB) specification. In one example, the bus...http://www.google.es/patents/US6505263?utm_source=gb-gplus-sharePatente US6505263 - Bus controller operating code in system memory
