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:
Sep. 06, 2005
Filed:
May. 15, 2001
Louis L. Hsu, Fishkill, NY (US);
William Wu Shen, Los Altos, CA (US);
Li-kong Wang, Montvale, NJ (US);
Louis L. Hsu, Fishkill, NY (US);
William Wu Shen, Los Altos, CA (US);
Li-Kong Wang, Montvale, NJ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The invention provides a simple interface circuit between a large capacity, high speed DRAM and a single port SRAM cache to achieve fast-cycle memory performance. The interface circuit provides wider bandwidth internal communications than external data transfers. The interface circuit schedules parallel pipeline operations so that one set of data buses can be shared in cycles by several data flows to save chip area and alleviate data congestion. A flexible design is provided that can be used for a range of bandwidths of data transfer and generally any size bandwidth ranging from 32 to 4096 bits wide can use this same approach.