Harold Hallikainen wrote:

> I think a problem with setting the usart for 9 bits is that it does it
> on both transmit and receive. Another way to leave idle time between
> characters (similar to more start bits) is to use a timer interrupt
> instead of the usart tx interrupt to load the next character.

There are two 9 bit enable bits: TX9 and RX9, so should be quite OK to send in 9 
bit mode and receive in 8 bit mode. The tests I did seemed to support this, although 
I didn't actually scope it to see.

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Brent Brown, Electronic Design Solutions
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