> I used this for a 485 controlled remote device. Is it true that the PICs don't > have this facilty? (I've only used 16f84s). Yes. PICs only have a status bit indicating when transmission has completed, but this status can not generate an interrupt. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu