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CLa_R's avatar
CLa_R
Icon for Occasional Contributor rankOccasional Contributor
7 years ago

Cyclone IV memory config

In my design I am using an EP4CE10E22 (Cyclone IV) FPGA and a (Micron?) M25P40 chip for memory configuration. I have two questions: 1) Is the memory chip suitable for CycloneIV? 2) How can I under...
Nooraini_Y_Intel's avatar
Nooraini_Y_Intel
Icon for Frequent Contributor rankFrequent Contributor
7 years ago

Hi CLaR,

If you are asking about whether the M25P40 memory capacity can fit the EP4CE10E22 (Cyclone IV) bitstream size, please refer to "Example 1" from the EPCS datasheet. The "Example 1" shows how you can calculate(estimate) the FPGA compress .rbf size to determine which EPCS device is suitable for FPGA device. The same calculation concept is applicable for other SPI flash too.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cfg/cyc_c51014.pdf

Refer to Table 8–2 for the uncompressed Raw Binary File (.rbf) sizes for Cyclone IV devices from the Cyclone IV handbook in the following link:

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyclone-iv/cyiv-5v1.pdf

Regards,

Nooraini