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.

Date of Patent:
Aug. 11, 2015

Filed:

Sep. 30, 2014
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Glenn D. Gilda, Binghamton, NY (US);

Mark R. Hodges, Endicott, NY (US);

Vesselina K. Papazova, Highland, NY (US);

Patrick J. Meaney, Poughkeepsie, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/07 (2006.01); G06F 11/08 (2006.01);
U.S. Cl.
CPC ...
G06F 11/073 (2013.01); G06F 11/08 (2013.01);
Abstract

A computer implemented method for early data delivery prior to error detection completion in a memory system includes receiving a frame of a multi-frame data block at a memory control unit interface. A controller writes the frame to a buffer control block in a memory controller nest domain. The frame is read from the buffer control block by a cache subsystem interface in a system domain prior to completion of error detection of the multi-frame data block. Error detection is performed on the frame by an error detector in the memory controller nest domain. Based on detecting an error in the frame, an intercept signal is sent from the memory controller nest domain to a correction pipeline in the system domain. The intercept signal indicates that error correction is needed prior to writing data in the frame to a cache subsystem.


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