Version 1 (modified by murphpo, 14 years ago) (diff) |
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WARP FPGA Board Memory Resources
On-Chip Memory
The V4 FX100 FPGA provides 376 18kb RAM blocks (6.7Mb total). Logic slices can also be used as RAM (what XIlinx calls distributed memory); the FX100 provides up to 659kb of distributed memory.
DDR2 SO-DIMM
The WARP FPGA Board v2.2 includes a DDR2 SO-DIMM slot. This connector is routed to dedicated FPGA I/O and clocking resources and supports up to 2GB modules.
In order to use a SO-DIMM, the user FPGA design must include a DDR2 memory controller. Thankfully, Xilinx provides (and maintains) a high performance controller as part of their Multi-Port Memory Controller (MPMC).