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:
Oct. 29, 2013
Filed:
Mar. 29, 2010
Kun Xu, Austin, TX (US);
David B Kramer, Cedar Park, TX (US);
James A. Welker, Leander, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A data processing system employs a scheduler to schedule pending memory access requests and a memory controller to service scheduled pending memory access requests. The memory access requests are asynchronously scheduled with respect to the clocking of the memory. The scheduler is operated using a clock signal with a frequency different from the frequency of the clock signal used to operate the memory controller. The clock signal used to clock the scheduler can have a lower frequency than the clock used by a memory controller. As a result, the scheduler is able to consider a greater number of pending memory access requests when selecting the next pending memory access request to be submitted to the memory for servicing and thus the resulting sequence of selected memory access requests is more likely to be optimized for memory access throughput.