Method and apparatus for improving bus efficiency by enabling arbitration based upon availability of completion data
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United States of America Patent
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Dec 15, 1998
Grant Date -
N/A
app pub date -
Dec 18, 1995
filing date -
Dec 18, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a system that selectively allows an arbitration cycle to occur only when specific data is ready for transfer. That is, a flag register is provided and its output is ANDed with a bus request signal from a bus device. An arbiter will accept a bus request and initiate an arbitration cycle only when the state of a bit in the flag register indicates that actual completion data exists for the requesting device.
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