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MIG and Spartan3 for a 112 bit DQ bus (7chips x16)

Hello,

Has anybody tried to use MIG with a Spartan 3 to generate a memory controller that has a big DQ bus? I would like to generate a core that controls 7 chips (x16), this results in 112 DQ pins. The chips would use a clock of 133MHz.

Has anybody got experience with the MIG tool? Is it user-friendly or do you prefer to write your own DDR core?

thanks and best regards, Karel

Reply to
Dolphin
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I'd recommend writing your own core. The designs created by MIG are demonstrators when it comes to Spartan 3 and have too much restrictions when it comes to which pins can be used. Besides, I think

133MHz is pushing the limits of the device. You probably need faster (166MHz) DDR memory in order to meet timing. 
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Reply to
Nico Coesel

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