asynchronous FIFO problem

[phoenixfeng]

clifford's paper about async FIFO (#2 style) is best in solve the full&empty ,
but i find a problem: the afull & aempty are both asynchronous , then glitch cann't be avoided, but the asynchronous preset & reset are sensitive to glitch, may it cause problem?

 

[yeyuguo]

do you mean you want to use the afull or aempty as asynchronous preset or reset?

 

[funster]

yes, I think this is a problem in this paper, even if we use gray code,

if we compare two gray code, the glitch must will be occur.

clifford's paper about async FIFO (#2 style) is best in solve the full&empty ,
but i find a problem: the afull & aempty are both asynchronous , then glitch cann't be avoided, but the asynchronous preset & reset are sensitive to glitch, may it cause problem?