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Visitor fabdi
Visitor
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Registered: ‎04-23-2018

FIFO18E1 in virtex6

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Hello

I used from FIFO18E1 in my project.

I have two frequencies (125 MHz and 250MHz) to write and read from FIFO.

My question: is there the special frequency (limited frequency) for FIFO18E1 or not?

Thanks 

Fatemeh

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Scholar u4223374
Scholar
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Registered: ‎04-26-2015

Re: FIFO18E1 in virtex6

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Yes, check DS152, table 57. Even the slowest Virtex 6 (the -1L speedgrade) can do 250MHz on the FIFOs in the absolute worst-case scenario (ECC enabled). Without ECC it'll do at least 340MHz.

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Scholar u4223374
Scholar
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Registered: ‎04-26-2015

Re: FIFO18E1 in virtex6

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Yes, check DS152, table 57. Even the slowest Virtex 6 (the -1L speedgrade) can do 250MHz on the FIFOs in the absolute worst-case scenario (ECC enabled). Without ECC it'll do at least 340MHz.

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