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:
Jul. 24, 2012
Filed:
Aug. 09, 2005
Nicholas Vaccaro, San Jose, CA (US);
Mostafa Kashi, Sunnyvale, CA (US);
Nicholas Vaccaro, San Jose, CA (US);
Mostafa Kashi, Sunnyvale, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A system and method optimizing data throughput to a processor from a storage device having sequential data access capabilities where the processor enables its data cache for memory operations involving the storage device. The system includes a processor coupled to the data storage device, e.g., a NAND flash memory. The processor establishes an address window used as a cache (CW) for reading data from the flash memory and also establishes a non-cacheable address window (NCW) for commands, address delivery and writes to the flash memory. The CW is sized to be larger than the processor data cache to ensure that reads from the flash memory always encounter a cache-miss so that read data is obtained directly from the flash memory. By reading through the CW from the flash memory, the processor takes advantage of bursting, pipelining and data prefetch efficiencies which significantly increase data throughput.