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:
May. 21, 2002
Filed:
Feb. 28, 2001
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
The method of the present invention includes maintaining a first tier and a second tier of devices that have access to a secondary bus that a PCI to PCI bridge services. Each device that has access to secondary PCI bus is categorized into either first tier or a second tier . The devices in first tier are provided more frequent opportunities to gain access to secondary PCI bus than devices in low tier . Next, a pending transaction is recognized when an initiating device that has been categorized into second tier accesses secondary PCI bus and attempts a transaction that crosses PCI to PCI bridge to primary PCI bus . However, PCI to PCI bridge is unable to complete the transaction on primary PCI bus . Therefore, PCI to PCI bridge is unable to provide access to any other device on secondary bus until the pending transaction completes. Next, device that initiated the pending transaction is categorized into first tier until the pending transaction is completed.