Bus arbiter method and system
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United States of America Patent
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Jun 2, 1998
Grant Date -
N/A
app pub date -
Mar 18, 1996
filing date -
Mar 18, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved bus arbitration system comprising an information bus, first and second bus masters connected to the bus and a bus arbiter for controlling ownership of the bus. The first bus master is adapted to perform speculative pre-fetching and has a first REQ signal for requesting ownership of the bus and an SP signal for indicating when a bus ownership request is for a speculative pre-fetch. The second bus master has a second REQ signal for requesting ownership of the bus. The bus arbiter is configured such that when the first bus master asserts its REQ signal and its SP signal and the second bus master asserts its REQ signal, the bus arbiter assigns higher priority to the second bus master in response to the SP signal.
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