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. 13, 2003
Filed:
May. 20, 1999
Applicant:
Inventors:
Jinqlih Sang, Fremont, CA (US);
Edward Yang, San Jose, CA (US);
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/250 ;
U.S. Cl.
CPC ...
H04L 1/250 ;
Abstract
A network switch configured for switching data frames across multiple ports utilizes an efficient arbiter to store the data frames. Each port possesses queuing logic for requesting a free pointer from a free buffer queue. A multi-level arbitration logic arbitrates all the requests of equal priority from the network switch ports in a round robin scheme. The arbitration logic comprises a plurality of cells that cascaded to output an acknowledgement signal in response to an inhibit signal and a request signal as well as a counter that is incremented upon an asserted acknowledgement signal.