>I don't know the specific timings of the keyboard controllers, but one
>generally has to wait for mechanical switches to stop bouncing. The
>contact is not a clean one, but rather a series of brief contacts
>as the contacts close, then bounce a part, then close, then bounce...
>This continues until the spring finally overcomes the switch bounce.
Does this mean that it will be unique to each Atari system and clone, based
on differing hardware?
I assume 400 microseconds is an upper bound as a general rule of thumb.
-John K. Harvey
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