Hie,

Like i said, it should be asynchronous, but it isn't necessarily so... I've 
seen one that doesn't conform to that... but it works quite well under light 
loads.. .but just screws up under heavy loads... because it only does a 
smaller oversampling and it's baudrate generator and sampling clock is 
regular, and not starting and stopping depending on the bitstream...

Granted, this is not an off-the-shelf component, so, it's not the normal case, 
but the fact that such implementations are done, means that it's possible 
that others might do so.. especially if they want to reduce cost.. the size 
of this 'synchronous' one was ~10% (iirc) of the size of a full fledge UART.. 
And it worked most of the time..

So, since then, I've not assumed that async means async... sometimes, it means 
pseudo-async... or pseudo-sync... 

cheers..

-- 
with metta,
Shawn Tan

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