Arbitration apparatus for determining priority of access to a shared bus on a rotating priority basis

摘要: An arbitration apparatus for use within a computer system comprises plurality of individual arbiters arranged in particular configuration wherein some are higher the than specific arbiter and lower arbiter. Each has request terminal receiving access signals, requesting to shared bus, an enable enabling signal. The signal is generated energizes if requests not received by relative If arbiter, grant developed from more one at same time, command rotor, connected determines priority signals bus response "rotation" rotor. predetermined type, pre-emptive may be its even absence there no grants. refresh when received, latched, takes place finally generated.