2.3.6. Arbitration

You can program the arbitration algorithm for all arbitration nodes within the interconnect.

At the entry point to the infrastructure, all transactions are allocated a local QoS that you can configure to be:

The arbitration of the transaction as it passes through the interconnect uses this QoS. See Chapter 3 Programmers Model.

At any arbitration node, a fixed priority exists for transactions with a different QoS. The highest value has the highest priority. If there are coincident transactions at an arbitration node with the same QoS that require arbitration, then the network uses a Least Recently Used (LRU) algorithm.

Note

Alternatively, QoS allocation schemes can be implemented using the QoS-400 add-on.

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