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You can enable the arbitration to resemble:
a fixed-priority style scheme
a round-robin style scheme
a combination of fixed-priority and round-robin style schemes.
You can configure the behavior of the arbitration scheme at design time. You can also update it during boot or run-time, by updating the arbitration control registers. Access these registers through an APB interface.
Initial arbitration order enables you to specify a post-reset arbitration order for a slave interface, and this determines the priority of the attached master. See the AMBA Designer (FD001) User Guide for more information.
The matrix implements a single shared arbiter for both read and write address channels. This means that a slave can only accept simultaneous read and write transactions from the same master.
This section describes: