Patent · US Active

Method and apparatus for scrubbing memory

US7913147B2 · kind B2 · utility

55Cited by

6References

21Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Muthukumar P. Swaminathan · Folsom, US
Achutha Kiran Kumar V. Madhunapantula · Bengaluru, IN
Tessil Thomas · Bengaluru, IN
Sambaran Mitra · Godda, IN
Chandra P. Joshi · Bengaluru, IN

Key dates

Filing date	Feb 9, 2007
Grant date	Mar 22, 2011
Priority date	—
Expiry date	Nov 9, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG06F13/1668
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Method and apparatus to scrub memory is disclosed. A patrol request, for example a read/write request, may be raised to the memory command scheduler in an out of order memory controller to scrub the memory. The patrol read/write request may be raised as and when patrol interval timer expires. The patrol read/write request may also be raised based on presence of a transaction in-flight to the memory, retry response from the memory command scheduler and correctable or non-correctable error response from the memory command scheduler. An interrupt may be raised to a processor upon completion response from the memory command scheduler.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.