Intel® Quartus® Prime Pro Edition User Guide: Platform Designer

ID 683609
Date 4/03/2023
Public

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6.1.4.2. AXI Translator

AMBA* 4 AXI allows omitting signals from interfaces. The translator bridges between these “incomplete” AMBA* 4 AXI interfaces and the “complete” AMBA* 4 AXI interface on the network interfaces.
Figure 185. AXI Subordinate Network InterfaceAn AMBA* 4 AXI subordinate supports up to 256 beat INCR bursts, QoS signals, and data sideband signals.

The AXI translator is inserted for both AMBA* 4 AXI manager and subordinate, and performs the following functions:

  • Matches ID widths between manager and subordinate in 1x1 systems.
  • Drives default values as defined in the AMBA* Protocol Specifications for missing signals.
  • Performs lock transaction bit conversion when an AMBA* 3 AXI manager connects to an AMBA* 4 AXI subordinate in 1x1 systems.