The LogiCORE™ IP Advanced Microcontroller Bus Architecture (AMBA®) AXI to Advanced Peripheral Bus (APB) Bridge core translates AXI4-Lite transactions into APB transactions. It functions as a slave on the AXI4-Lite interface and as a master on the APB interface. The AXI to APB Bridge is used primarily to connect the APB slaves with AXI masters.