Methods and apparatus for control of asynchronous cache
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United States of America Patent
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Dec 14, 2004
Grant Date -
Sep 25, 2003
app pub date -
Mar 20, 2002
filing date -
Mar 20, 2002
priority date (Note) -
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Abstract
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.
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