bus arbitration

Definition for: bus arbitration

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bus arbitration

If at the very same moment several nodes try to access the bus, an arbitration process is necessary to control which node may transmit while the other nodes have to delay their transmission. The bus arbitration process used in CAN protocol is CMSA/CD (Carrier Sense Multiple Access/Collision Detection) with AMP (Arbitration on Message Priority). This allows bus arbitration without destruction of messages.

Source CANdictionary (2016) - CiA CAN in Automation - www.can-cia.org