US PATENT SUBCLASS 711 / 144
.~.~.~.~ Cache status data bit

Current as of: June, 1999
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711 /   HD   ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY

100  DF  STORAGE ACCESSING AND CONTROL {6}
117  DF  .~ Hierarchical memories {1}
118  DF  .~.~ Caching {14}
141  DF  .~.~.~ Coherency {5}
144.~.~.~.~ Cache status data bit

DEFINITION

Classification: 711/144

Cache status data bit:

(under subclass 141) Subject matter wherein coherency for each unit or block of data includes associated identifier bit(s) to indicate the validity status of an associated cached location.

(1) Note. For this subclass, validity status bits can indicate whether data are modified, valid, dirty, etc.