| Memory Interface and Storage Element |
| Product Name | Vendor | Type | SignOnce | Supported Devices |
| LD-based Parallel Latch | Xilinx, Inc. | LogiCORE | | Virtex-II Pro, Virtex-II, Virtex-E, Virtex, Spartan-3E, Spartan-3, Spartan-IIE |
| Memory Interface Generator (MIG) | Xilinx, Inc. | | | Virtex-6 HXT, Virtex-6 LX, Virtex-6 LXT, Virtex-5 FXT, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT, Virtex-5 TXT, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Spartan-6 LX, Spartan-6 LXT, Spartan-3A, Spartan-3A DSP, Spartan-3AN, Spartan-3E, Spartan-3 |
| RAM-based Shift Register | Xilinx, Inc. | LogiCORE | | Virtex-6, Virtex-5, Virtex-4, Spartan-6, Spartan-3A, Spartan-3A DSP, Spartan-3E, Spartan-3 |
| SDRAM Controller, DDR (DDR-XS-XILINX) | Array Electronics | AllianceCORE | X | Spartan-3, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-5 LX, Virtex-5 LXT |
| Distributed Memory Generator | Xilinx, Inc. | LogiCORE | | Virtex-6 -1L, Virtex-6 HXT, Virtex-6 CXT, Virtex-6 LXT, Virtex-6 SXT, Virtex-5 FXT, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-4 XA, Virtex-II Pro, Virtex-II, Virtex-E, Virtex, Spartan-6 LX, Spartan-6 LXT, Spartan-3A DSP, Spartan-3E, Spartan-3 XA, Spartan-3, Spar |
| FIFO Generator | Xilinx, Inc. | LogiCORE | | Virtex-6 -1L, Virtex-6 HXT, Virtex-6 CXT, Virtex-6 LXT, Virtex-6 SXT, Virtex-5 FXT, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT, Virtex-5 TXT, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-4 XA, Virtex-II Pro, Virtex-II, Virtex-E, Virtex, Spartan-6 LX, Spartan-6 LXT, Spartan-3A, Spartan-3A DSP, Spartan-3AN, Sp |
| Block Memory Generator | Xilinx, Inc. | LogiCORE | | Virtex-6 -1L, Virtex-6 HXT, Virtex-6 CXT, Virtex-6 LXT, Virtex-6 SXT, Virtex-5 FXT, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT, Virtex-5 TXT, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-4 XA, Virtex-II Pro, Virtex-II, Spartan-6 LX, Spartan-6 LXT, Spartan-3A, Spartan-3A DSP, Spartan-3AN, Spartan-3 XA, Sparta |
| Single-Port Block Memory | Xilinx, Inc. | LogiCORE | | Spartan-3E, Spartan-II, Spartan-IIE, Virtex, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-E, Virtex-II, Virtex-II Pro, Spartan-3 |
| Distributed Memory | Xilinx, Inc. | LogiCORE | | Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-II Pro, Virtex-II, Virtex-E, Virtex, Spartan-3, Spartan-II, Spartan-IIE |
| Dual-Port Block Memory | Xilinx, Inc. | LogiCORE | | Spartan-3E, Spartan-II, Spartan-IIE, Virtex, Spartan-3, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-E, Virtex-II, Virtex-II Pro |
| Content Addressable Memory (CAM) | Xilinx, Inc. | LogiCORE | | Virtex-5 FXT, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT, Virtex-5 TXT, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-II Pro, Virtex-II, Virtex-E, Virtex, Spartan-3, Spartan-II, Spartan-IIE |
| BUFT-based Multiplexer Slice | Xilinx, Inc. | LogiCORE | | Spartan-3, Spartan-3E, Spartan-IIE, Virtex, Virtex-E, Virtex-II, Virtex-II Pro |
| Synchronous FIFO | Xilinx, Inc. | LogiCORE | | Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-II Pro, Virtex-II, Virtex-E, Virtex, Spartan-3, Spartan-II, Spartan-IIE |
| SDRAM Controller, DDR2 (NWL) | Northwest Logic | AllianceCORE | X | Spartan-3, Spartan-XL, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-II Pro |
| Asynchronous FIFO | Xilinx, Inc. | LogiCORE | | Virtex-4 LX, Virtex-4 SX, Virtex-II Pro, Virtex-II, Virtex-E, Virtex, Spartan-3, Spartan-II, Spartan-IIE, Virtex-4 FX |
| DMA Interface for Embedded PCIe Controller (EZDMA) | PLDA | candidate_core | | Virtex-5 FXT, Virtex-5 LXT, Virtex-5 SXT, Virtex-5 TXT |
| SDRAM Controller, DDR (NWL) | Northwest Logic | AllianceCORE | X | Spartan-3, Spartan-3E, Spartan-3L, Spartan-IIE, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-II, Virtex-II Pro |
| SPI FLASH Controller (SPI_FLASH_CTRL) | ASICS World Service, Ltd. | candidate_core | | Spartan-3, Spartan-3A, Spartan-3E, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-5 FXT, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT |
| FLASH, NAND Controller (EP501) | Eureka Technology, Inc. | candidate_core | X | Spartan-3, Spartan-3A, Spartan-3E, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT |
| SDRAM Controller, SDR (NWL) | Northwest Logic | AllianceCORE | X | Spartan-3, Spartan-3E, Spartan-3L, Spartan-IIE, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-II, Virtex-II Pro |
| SDRAM Controller, DDR/DDR2 (EP532) | Eureka Technology, Inc. | candidate_core | X | Spartan-3, Spartan-3E, Spartan-3L, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX |
| SDIO/SD Memory/MMC Host Controller (EP550) | Eureka Technology, Inc. | candidate_core | X | Spartan-3, Spartan-3A, Spartan-3E, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT |
| SD/SDIO Device (SD_SDIO_D1) | ASICS World Service, Ltd. | candidate_core | | Spartan-3, Spartan-3A, Spartan-3E, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Virtex-5 FXT, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT |
| NAND Flash Memory Controller (NANDFLASH-CTRL) | CAST, Inc. | candidate_core | X | Virtex-5 FXT, Virtex-5 LX, Virtex-5 LXT, Virtex-5 SXT, Virtex-5 TXT, Virtex-4 FX, Virtex-4 LX, Virtex-4 SX, Spartan-3A, Spartan-3E, Spartan-3 |
| DDR3 Controller (1001) | HCL Technologies, Ltd. | candidate_core | | Virtex-5 LX |
