Methods and apparatus for control of asynchronous cache

A processing system includes a cache controller for managing requests for data from a cache memory by a processor. The cache controller includes an access queue that holds requests for data pending asynchronous retrieval of the requested data from the cache memory, and an exit queue that holds the r...

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Bibliographische Detailangaben
Hauptverfasser: SAMUEL D NAFFZIGER, DONALD C SOLTIS
Format: Patent
Sprache:eng
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Zusammenfassung:A processing system includes a cache controller for managing requests for data from a cache memory by a processor. The cache controller includes an access queue that holds requests for data pending asynchronous retrieval of the requested data from the cache memory, and an exit queue that holds the requested data retrieved from the cache memory until released to the processor. This queuing arrangement allows data lines to be retrieved from cache memory without a pipeline, while latencies are minimized.