Patent ID: 8051234

Claim:
A method of notification of an interrupt for multi-core processor, comprising a plurality of IO circuits, an interrupt controller for receiving plural requests, one of which is shared by plural interrupt causes, the method comprising the steps of: sending an interrupt request from one of the plurality of IO circuits to the interrupt controller, determining one processor core based on a number identifying the interrupt request from the IO circuit by the interrupt controller, notifying the interrupt request to the one processor core by the interrupt controller, determining whether performing an interrupt operation for the received interrupt request based on an interrupt cause of the received interrupt request by the one processor core, performing the interrupt operation for the received interrupt request when the one processor core determines performing the interrupt operation based on the interrupt cause, sending the interrupt request to another processor core when the one processor core determines not performing the interrupt operation based on the interrupt cause, and determining whether performing the interrupt operation for the received interrupt request based on the interrupt cause of the received interrupt request by the another processor core.