Bus controller handling a dynamically changing mix of multiple nonpre-emptable periodic and aperiodic devices
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United States of America Patent
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Jul 23, 2002
Grant Date -
N/A
app pub date -
Apr 15, 1999
filing date -
Apr 15, 1999
priority date (Note) -
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Abstract
The invention concerns an arbitration scheme for permitting access to the bus of a computer. The arbitration scheme has the ability to control and reduce the delay experienced by any device by monitoring the queue length of the device and using information concerning the device, such as device rate, phase, data transfer size and queue length. Specifically, the arbiter prevents periodic accessing devices, such as audio and video samplers, from being delayed or interrupted for long periods of time once they have begun accessing the bus.
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