Patent ID: 6816935
Filing Date: 2004-11-09
Classification: G06F

Abstract:
A method for reporting interrupt requests and status information from a peripheral device to a processor of a computer system, the method comprising:transmitting an interrupt request bit from a peripheral device to a host controller across a peripheral bus; transmitting an interrupt cause code from said peripheral device to said host controller across said peripheral bus; transmitting a parameter field from said peripheral device to said host controller; storing said interrupt request bit, said interrupt cause code, and said parameter field in one or more registers in said host controller, wherein said interrupt request bit, said interrupt cause code, and said parameter field are transmitted in a timeslot of a frame, wherein the cause code is indicative of a cause of a corresponding interrupt, and wherein the parameter field provides further information about the cause of the corresponding interrupt; and reading said interrupt request bit, said interrupt cause code, and said parameter field from said one or more registers, wherein said reading is performed by said processor.