LogiCORE IP AXI External Memory Controller (EMC) v2.0 Product Guide (AXI) - 2.0 English - The LogiCORE IP AXI External Memory Controller (EMC) is a soft Xilinx IP core for use with external memory devices. The adaptable block provides memory controller functionalities for SRAM, NOR Flash and PSRAM/CellularRAM memory devices. The core provides an AXI4 Slave Interface that can be connected to AXI4 Master or Interconnect devices in the AXI4 Systems.