Cache array macro micro-masking

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United States of America Patent

PATENT NO 11449397
APP PUB NO 20210073087A1
SERIAL NO

16567308

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Abstract

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A computer-implemented method for memory macro disablement in a cache memory includes identifying a defective portion of a memory macro of a cache memory bank. The method includes iteratively testing each line of the memory macro, the testing including attempting at least one write operation at each line of the memory macro. The method further includes determining that an error occurred during the testing. The method further includes, in response to determining the memory macro as being defective, disabling write operations for a portion of the cache memory bank that includes the memory macro by generating a logical mask that includes at least bits comprising a compartment bit, and read address bits.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fredeman, Gregory J Wappingers Falls, US 27 188
Gilda, Glenn David Binghamton, US 15 142
Miller, Thomas E Poughkeepsie, US 12 10
O'Neill, Arthur Poughkeepsie, US 8 13

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