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Definition of "bus arbitration" |
Bus arbitration is a way of sharing the computer's data transferring channels (buses) in an optimal way so the faster devices won't have to wait to be able to transfer and the slower devices (like peripherals) will have a chance to transfer as well. Different methods exist but two main types are the serial and parallel arbitrations. Serials include the daisy chain arbitration and hardware polling. The parallel ones are software polling and independent requesting .Centralized bus arbitration requires hardware that will grant the bus to one of the requesting devices. This hardware can be part of the CPU or it can be a separate device on the motherboard. / the process of determining which competing bus master should be granted control of the bus. The act of choosing which subsystem will be given control of the bus when two or more requests for control of the bus happen simultaneously. The element that make the decision is usually called the bus arbiter. |
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