Method and system for perfetching data in a bridge system
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United States of America Patent
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-
Dec 31, 2002
Grant Date -
N/A
app pub date -
Mar 24, 1999
filing date -
Mar 24, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed is a bridge system and method for prefetching data to return to a read request from an agent. The bridge system includes at least one memory device including a counter indicating a number of prefetch operations to perform to prefetch all the requested data, a first buffer capable of storing prefetch requests, and a second buffer capable of storing read data. Control logic implemented in the bridge system includes means for queuing at least one prefetch operation in the first buffer while the counter is greater than zero. The control logic then executes a queued prefetch operation, subsequently receives the prefetched data, and stores the prefetched data in the second buffer. The stored prefetched data is returned to the requesting agent.
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