Bus arbitration - computer architecture, Computer Engineering

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Bus arbitration:

In single bus architecture when more than 1 device requests the bus, a controller known as bus arbiter decides who gets the bus; this is known as the bus arbitration.

905_Bus arbitration.png

o Each device on the bus assigned an unique identification number.

o Place their ID numbers on 4 open-collector lines.

o All components have equal responsibility in performed the arbitration process.

o A winner is chosen as a result.

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