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:
Nov. 09, 1999
Filed:
Apr. 29, 1997
Applicant:
Inventors:
Richard T Baker, Austin, TX (US);
Randall E Pipho, Leander, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
710113 ; 710 40 ; 710 22 ; 710241 ;
Abstract
In a PCI-interface device (20), assigning highest DMA channel (74) priority is based on the DMA channel number associated with the data transfer currently active on the physical media interface. The present invention supplies this priority information relating to the currently active data packet being transferred to the DMA arbitration logic (348) and continues to service the current DMA channel until a predetermined boundary condition exists. The method and system (300) shift DMA channel execution to this highest priority DMA channel upon determining the occurrence of the boundary condition.