Quality of Service

Versal ACAP Technical Reference Manual (AM011)

Document ID
AM011
Release Date
2022-04-26
Revision
1.4 English

Each AXI transaction includes four quality of service (QoS) signals. These signals seamlessly flow with the transaction from the source, through the AXI switches and the network on chip (NoC) interconnect, and to the destination to support three different traffic types.

  • Low latency: typically CPU to DDR memory transactions
  • Isochronous: real-time deadlines
  • Best effort: bulk transfers and not time critical