ARM Technical Support Knowledge Articles

Arbitration: Can a master perform transfers other than IDLE when the bus was granted to it, but not requested by the master?

Applies to: AHB

Answer

Yes. A master can perform transfers other than IDLE when it had not requested the bus. Please note that in this case it is still recommended that the master asserts its request signal so that the arbiter does not change ownership of the bus to a lower priority master while the transfers are in progress.

See also:

Article last edited on: 2014-02-05 15:42:16

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