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Altera_Forum
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12 years ago

The explanation of gray code “quadrant” technique

Many articles discuss about the benefits of using gray counter to design a FIFO. One of the advantage is we can use the quadrant coding method to determine the FIFO empty and full condition. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Don't. Just use the one provided by Altera.

If you need to cross two unrelated clock domains, select a DCFIFO with 2 or more synchronization stages.

If you need to cross two related clock domains, select a DCFIFO with 1 synchronization stage.