Memory controller and method for scrubbing memory without...

Details Memory controller and method for scrubbing memory without... Memory controller and method for scrubbing memory without...

2007-08-14

2007-08-14

Bataille, Pierre-Michel (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S141000

Reexamination Certificate

active

10860404

ABSTRACT:
A memory controller includes scrub circuitry that performs scrub cycles in a way that does not delay processor reads to memory during the scrub cycle. Atomicity of the scrub operation is assured by protocols set up in the memory controller, not by using an explicit atomic read-correct-write operation. The result is a memory controller that efficiently scrubs memory while minimizing the impact of scrub cycles on system performance.

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Hillier III et al., IBM U.S. Appl. No. 10/865,250, filed Jun. 10, 2004, “Memory Controller and Method for Copying Mirrored Memory”.
“IBM Enterprise X-Architecture Technology”, First Edition 2002, “Reaching the summit”.

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