My apologies, I don't know how the piclist accepted my other= email address, when it's the optusnet one that is registered and set up= for piclisting. I'm a little confused, according to a Microchip document, when writing to a Port they advise using the LAT instruction, I= assume this gets around the RWM problem, however the example code= offered by Microchip and from others floating around don't use it. I realise that it doesn't have to be used, but if its there and= does get around the RWM problem, why aren't people taking advantage of= it? Colin -- cdb, cdb@barnard.name on 01/11/2002 -- cdb, bodgy1@optusnet.com.au on 03/11/2002 -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu