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:
Sep. 28, 2004
Filed:
Jun. 19, 2001
Michael J. Peters, Fort Collins, CO (US);
James R. Klobcar, Winter Springs, FL (US);
Adaptec, Inc., Milpitas, CA (US);
Abstract
A sparse byte enable indicator for high speed memory access arbitration and a memory controller utilizing same is provided. According to the invention, a sparse byte enable indication is provided to the memory controller with or at about the same time that a request for a write to memory is received from a client. In response to receiving the sparse byte enable indication, the memory controller can begin to initiate a read-modify-write sequence. The present invention allows write operations involving less than complete data words in a first block of data to be completed in fewer clock cycles than in connection with controllers that do not utilize a sparse byte enable indication. The present invention is applicable in connection with any device controlling access to memory in systems utilizing error correction code.