Port Command Priority

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

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2.4 English

The next tier of arbitration policy is the multiple-level port command priorities. The priorities are per command and can dynamically change for a given port based on AXI AxQoS signals (arqos/awqos). This tier of arbitration has a lower-level priority than the timeout tier. In addition, for reads, the port priority tier has lower priority than the HPR/LPR-VPR tier.