Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-07-18
2006-07-18
Baker, Stephen M. (Department: 2133)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S056000, C714S700000
Reexamination Certificate
active
07080288
ABSTRACT:
A method an apparatus for interface failure survivability using error correction provides operation of an interface when a number of bits of the interface less than or equal to available error correction depth are present. Initialization tests are used to determine whether the interface errors due to failed interconnects or circuits can be corrected, or whether the interface must be disabled. Subsequent alignment at initialization or during operation idle periods may be disabled for any failed bit paths. The failed bit path indications are determined and maintained in hardware, and used to bypass subsequent calibrations that could otherwise corrupt the interface. A fault indication specifying total failure may be generated and used to shut down the interface and/or connected subsystem in response to an uncorrectable condition and request immediate repair. A second fault indication specifying correctable failure may be generated and used to indicate a need for eventual repair.
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Ferraiolo Frank David
Floyd Michael Stephen
Reese Robert James
Reick Kevin Franklin
Baker Stephen M.
Harris Andrew M.
Mitch Harris Atty at Law, LLC
Salys Casimer K.
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