Multilevel priority arbiter
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United States of America Patent
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Feb 2, 1982
Grant Date -
N/A
app pub date -
Feb 6, 1980
filing date -
Feb 6, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multi-level arbiter for resolving multiple requests for access to a shared facility. The arbiter includes a plurality of loop arbiters, each including a polling circuit to test each of a plurality of units for a request for access to the shared facility. The first unit encountered by the polling circuit on each loop which has a request for service active is conditioned to utilize the shared facility as soon as the central arbiter grants the request for service to the loop. The central arbiter assigns priority among the loop arbiters.
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