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. 06, 2018
Filed:
Mar. 31, 2015
Toshiba Memory Corporation, Tokyo, JP;
Sancar Kunt Olcay, Sunnyvale, CA (US);
Toshiba Memory Corporation, Tokyo, JP;
Abstract
In an example, a method of managing direct memory access (DMA) descriptors for commands to a non-volatile semiconductor storage device includes requesting DMA descriptors from the host system for each of a plurality of the commands stored in a command random access memory (RAM). The method further includes storing the DMA descriptors for each of the plurality of the commands in free descriptor regions in a descriptor RAM. The method further includes maintaining a dynamic descriptor list in the descriptor RAM for each of the plurality of commands, the dynamic descriptor list for each of the plurality of commands comprising occupied descriptor regions in the descriptor RAM having associated DMA descriptors.