Token style arbitration on a serial bus by passing an unrequested bus grand signal and returning the token by a token refusal signal
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United States of America Patent
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Jul 21, 1998
Grant Date -
N/A
app pub date -
Dec 1, 1995
filing date -
Dec 1, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electronic system comprises a plurality of components each having at least one communication node and being coupled together by communication links through the respective communication nodes so that the plurality of communication links and communication nodes form a bus which resembles an acyclic directed graph having established hierarchical parent-child relationships between adjacent nodes and a root node. Token passing style arbitration is implemented on the system, in one embodiment, in response to the root node sending out an unrequested bus grant, so that the node with the token has access to the bus.
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