The AXI Crossbar core is used in the subsystem to route AXI4-Lite requests to corresponding sub-cores based on the address. See the AXI Interconnect Product Guide (PG059) [Ref 13] for details.
For general information on the AXI4-Stream interfaces for AMD video IP cores, see the AXI4-Stream Video IP and System Design Guide (UG934) [Ref 9] .