LogiCORE IP XPS Universal Bus 2.0 Device (v1.00a) Data Sheet (AXI) - 1.0 English - The Xilinx Universal Serial Bus 2.0 High Speed Device with Advance Micro controller Bus Architecture Advanced eXtensible Interface (AXI) enables USB connectivity to the user’s design with a minimal amount of resources. This interface is suitable for USB-centric, high-performance designs, bridges, and legacy port replacement operations. This document contains information about the AXI4 version of the core.