Patent
1996-10-28
1998-06-09
Ray, Gopal C.
395735, 395868, G06F 1324
Patent
active
057649987
ABSTRACT:
A method and apparatus for providing a distributed implementation of an interrupt delivery controller in compliance with the OpenPIC specification. Specifically, a virtually unlimited number of interrupt source units can be supported without significant degradation of the system. This is accomplished by using a master reset bit for the interrupt delivery controller and a reset bit for each of the interrupt source units for indicating their respective current status. The master reset bit in combination with the reset bits are used to discard interrupts enroute during the resetting of the interrupt delivery controller. Thus, eliminating the requirement of an acknowledgement from each of the interrupt source units concerning their resetting status before proceeding.
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Henkler Richard A.
International Business Machines - Corporation
Ray Gopal C.
LandOfFree
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