What is the application of gray codes in digital electronics?
Gray codes can be used in some cases of clock domain crossing.
For gray codes to be useful for clock domain crossing, the
following condition must be met: gray code must encode a counter or
decounter (one value and the next must have a constant distance of
1)
Because of this condition, the most common use case for gray
codes is for encoding the pointers of an asynchronous FIFO.
In related domains, gray codes can also be used in
telecommunications in order to minimize the impact of analog noise
on a digital communication.