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:
Sep. 05, 2000
Filed:
Mar. 25, 1998
Judy M Gehman, Fort Collins, CO (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
An electronic circuit coordinates accesses to a register shared among multiple system resources by managing the priority of each system resource relative to others. When a priority register access is initiated, a signal is generated to block a simultaneous or overlapping register access by another system resource. If another register access is already in operation, it will be completed before the priority register access operates on the shared register. Otherwise, if the priority register access operates on the register first, the non-priority register access is held off until the priority register access completes. A method coordinates the potentially simultaneous or overlapping register accesses by multiple system resources to a shared register. When a priority register access initiates, a lookahead signal issues to set a busy flag that blocks competing register accesses until the priority register access completes.