AVR-Chat

> Well, you can't shove chars in faster than they go out..

Obviously.

But I noticed the two stage pipeline.  and if you wait until 
something comes out the end of the pipe before you put anything in it 
cuts the speed down.  I just didn't know the lag between data 
register and transmit register.  If it's just a clock cycle or two, 
then you're right, it won't matter.

MK

--- In AVR-Chat@yahoogroups.com, Dave VanHorn <dvanhorn@d...> wrote:
> At 11:56 AM 10/8/2004, upand_at_them wrote:
> 
> 
> 
> >For transmit, does checking TXC instead of UDRE limit the max 
> >transmit speed? 
> 
> Well, you can't shove chars in faster than they go out..
> 
> > And what is the lag between writing to UDR and it 
> >getting put into the transmit shift register?
> 
> Essentially zero.
> I've never measured it, but it's not much.