Lpc2000

Folks,

Anyone out there who's figured out how to properly time the de-assertion 
of the 485 driver enable when using the LPC21xx UART?  Problem is, the 
driver needs to be tristated as quickly as possible after transmission 
of the last byte (perhaps during the stop bit would be ok?), but the 
LPC21xx UART doesn't really give you an indication of this.  I'm 
sniffing down some rather obscure approaches (i.e. perhaps exploiting 
the published THRE interrupt initialization conditions), but wanted to 
see if anyone has already solved the issue.

Regards,
Ryan