QoS Priority

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

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2.4 English

Quality of service (QoS) can be used to assign an arbitration priority to the read and write commands. QoS can be controlled from physical PL signals or statically configured in the AXI interface's APB registers (RDQoS or WRQoS registers in the AFIFM register set). Driving the signals allows QoS values to be changed on a per transaction basis. The register control is static for all commands.