Quartus® Prime Pro Edition User Guide: Platform Designer

ID 683609
Date 4/01/2024
Public

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5.12.2. QoS

Platform Designer routes 4-bit QoS signals (Quality of Service Signaling) on the read and write address channels directly from the AXI manager or Avalon host to the AXI subordinate or Avalon agent, respectively.

Transactions from AXI managers and Avalon® hosts have a default value of 4'b0000, which indicates that the transactions are not part of the QoS flow. QoS values are not used for subordinates or agents that do not support QoS.

There are no programmable QoS registers or compile-time QoS options for a manager or host that overrides its real or default value.