Method and apparatus for controlling degradation data in cache

Details Method and apparatus for controlling degradation data in cache Method and apparatus for controlling degradation data in cache

2008-07-15

2011-11-15

Bragdon, Reginald (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S118000, C711S159000, C711SE12022, C714S003000

Reexamination Certificate

active

08060698

ABSTRACT:
A cache controller controls at least one cache. The cache includes ways including a plurality of blocks that stores therein entry data. A writing unit writes degradation data to a failed block. The degradation data indicates that the failed block is in a degradation state. A reading unit reads entry data from a block. A determining unit determines, if the entry data obtained by the reading unit includes the degradation data, that the block is in the degradation state.

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