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:
Mar. 28, 2006
Filed:
Mar. 29, 2002
Jeffrey M. Rogers, Colorado Springs, CO (US);
Jeffrey M. Rogers, Colorado Springs, CO (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
The present invention provides an apparatus and method for selecting bus-width formats. In an exemplary preferred embodiment of the invention, the circuit includes a bus controller configured to provide a first bus-width control signal to select a first bus-width. The circuit also includes a bus controller extension circuit configured to force the first bus-width control signal to a predetermined level when the bus controller is applied to a bus with a second bus controller that is incompatible with the first bus-width. Advantages of the invention include controlling a number of data bits to be transferred between a PCI device and a data bus that does not violate PCI specifications. Other advantages include a programmability of the PCI device to adapt to legacy systems as PCI technology progresses.