The AXI Crossbar core or SmartConnect core (for Versal ACAP) is used in the subsystem to route AXI4-Lite requests to corresponding sub-cores based on the address. See the following documents for details:
• AXI Interconnect LogiCORE IP Product Guide (PG059) [Ref 4]
• SmartConnect LogiCORE IP Product Guide (PG247) [Ref 5] (Versal ACAP)