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:
Apr. 12, 2011
Filed:
Jan. 24, 2008
Mark A. Brittain, Pflugerville, TX (US);
Kevin C. Gower, LaGrangeville, NY (US);
Warren E. Maule, Cedar Park, TX (US);
Mark A. Brittain, Pflugerville, TX (US);
Kevin C. Gower, LaGrangeville, NY (US);
Warren E. Maule, Cedar Park, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A memory system is provided that implements an asynchronous boundary in a memory module. The memory system comprises a memory hub device integrated in a memory module. The memory system also comprises a set of memory devices coupled to the memory hub device. The memory hub device comprises a command queue that receives a memory access command from an external memory controller via a memory channel at a first operating frequency. The memory system further comprises a memory hub controller integrated in the memory hub device. The memory hub controller reads the memory access command from the command queue at a second operating frequency. By receiving the memory access command at the first operating frequency and reading the memory access command at the second operating frequency an asynchronous boundary is implemented within the memory hub device of the memory module.