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:
Jan. 09, 2001
Filed:
Sep. 11, 1998
Ranjit J. Rozario, San Jose, CA (US);
Sridhar P. Subramanian, Sunnyvale, CA (US);
Ravikrishna Cherukuri, Milpitas, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A method (,) of implementing a set of ordering rules for executing requests for access to a system memory (,) includes the steps of identifying a request status (,) for a new request for access to the system memory (,) and assigning a tag to the new access request (,) based on the status of the new request. A control circuit (,) inserts the new access request (,) into one of a read buffer (,) or a write buffer (,) at a specified location within one or the read or write buffers (,) based on the status of the new access request. When the new access request is enqueued (,) and sent to an arbitration circuit (,), the requests are executed in an order with another access request (,) from the other of the read or write buffer based on the request status and the tag of the new request.