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:
Feb. 29, 2000
Filed:
Mar. 09, 1998
Manoj Gujral, Santa Clara, CA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A method and system for arranging and operating a multiprocessor computer server system having 'split-transaction bus' architecture, including bus modules operating with an address phase and a cycle phase. The bus modules are arranged for access by a prescribed resource stage to facilitate 'RETRY' operations. The method includes providing a Cache Tag and Address Compare, arranging the system so that a first bus module stores the address for the Resource stage in the Cycle Tag; and comparing subsequent address bus cycles to the contents of the Cache Tag so that, given a 'match', a 'RETRY' direction is responsively sent to any other bus module that requests access. The system provides components supporting the above method steps.