async-FIFO controller design question

[layowblue]

As we know gray coding is usually employed in async FIFO controller to generate read/write pointers, my question is: is there a possible way to improve the read speed safely so that it can exceed the gray coding mechanism?

In some design, latency is of high concern, and we have to think of every possible way to reduce latency(in term of clock cycles). Therefore, I'm thinking of whether it is possible to validate the read pointer earlier than what it is normally justified.

Any ideas?

Thanks

 

[std_match]

I am not sure what you want, but I think the following two papers cover most aspects of high-speed asynchronous FIFO design:

http://www.sunburst-design.com/papers/CummingsSNUG2002SJ_FIFO1.pdf
http://www.sunburst-design.com/papers/CummingsSNUG2002SJ_FIFO2.pdf

 

[rahul.achates]

Can you specify your requirement more clear ?