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:
Dec. 11, 2001
Filed:
Apr. 12, 2000
William W. Dennin, Lake Forest, CA (US);
Theodore C. White, Rancho Santa Marguerita, CA (US);
QLogic Corporation, Aliso Viejo, CA (US);
Abstract
The present invention is related to systems and methods for a disk controller memory. In one embodiment, a mass storage device is interfaced to a computer via an I/O bus using a mass storage device controller. The mass storage device controller includes a processor and a buffer memory configured to receive data from the mass storage device and the I/O bus. In addition, the controller includes a memory circuit coupled to the buffer memory and the processor. The memory circuit is configured to operate as a first-in-first-out memory during at least a first transfer of data between the memory circuit and the buffer memory. For example, the memory may be configured to operate as either as a random access memory or a FIFO during at least a first transfer of data between the memory circuit and the processor.