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:
Aug. 31, 2004
Filed:
Sep. 15, 2000
Raanan Ben-Zur, Campbell, CA (US);
Rohit Jindal, Sunnyvale, CA (US);
Aurelio Marquez Rios, San Jose, CA (US);
Ciena Corporation, Linthicum, MD (US);
Abstract
A method and apparatus for servicing massive interrupts in random access memory (RAM) are provided, comprising receiving a massive interrupt signal, and reading at least one unit interrupt register in a first RAM area in response to the massive interrupt signal. A set unit interrupt bit corresponds to an address in a second RAM area. Interrupt status registers are read at the corresponding address in the second RAM area in response to the set unit interrupt bit. A set interrupt status bit corresponds to an address in a third RAM area. Interrupt cause bits are read at the corresponding address in the third RAM area in response to the set interrupt status bit, and detailed information is obtained about the interrupt. The interrupt is serviced in accordance with the detailed information.