2.3.6 Quality of Service

You can program the TCU with a priority level for each TBU. The priority level is applied to every translation from that TBU.

The TCU uses this priority level to:

The arbiters contain starvation avoidance mechanisms to prevent transactions from being stalled indefinitely.

The TBU does not implement any prioritization between transactions. Arm recommends that bus masters with different QoS requirements use separate TBUs for translation.

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