The AXI Crossbar core is used in the subsystem to route AXI4-Lite requests to corresponding sub-cores based on the address. Refer to the AXI Interconnect LogiCORE IP Product Guide (PG059) for details.
For general information on the AXI4-Stream interfaces for AMD video IP cores, refer to the AXI4-Stream Video IP and System Design Guide (UG934).