Hi, everyone, Even though I have RE3 set as an output, I can't write to it. The value in ddre is 0x00, but when I try to write 0x0F to port e, it only sets the bottom three bits! Is this anything to do with RE3 being a Schmitt Trigger Capture pin? Thanks Graham -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu