The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2008
Filed:
Jan. 03, 2006
Naser Marmash, Ashland, MA (US);
Avinash Kallat, Marlborough, MA (US);
Brandon L. Paul, East Douglas, MA (US);
Mark Botello, Mansfield, MA (US);
Andrew Kniager, Hopkinton, MA (US);
Naser Marmash, Ashland, MA (US);
Avinash Kallat, Marlborough, MA (US);
Brandon L. Paul, East Douglas, MA (US);
Mark Botello, Mansfield, MA (US);
Andrew Kniager, Hopkinton, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
An interrupt processing system having an interrupt holding registers, each corresponding to a different class of interrupts. A write queue posts servicing required by the interrupt holding registers. An interrupt vector register has bit positions corresponding to different classes of interrupts. A read queue has inputs coupled to the plurality of interrupt holding registers and to the interrupt vector register. Detection logic is coupled between an arbiter, fed by the write and read queues, and a processor for: (a) indicating when an interrupt has passed from the write arbiter to the processor; (b) detecting the interrupt class of such passed interrupt; (c) enabling the one of the bit positions corresponding to the detected interrupt class in the interrupt vector register to store a state indicating the servicing requirement for such detected class of interrupt; and (d) wherein the data stored in the interrupt vector register is passed to the processor through the read queue and the arbiter selector.