David Koski wrote: > Okay, I have a NEC 1984 Microcomputer Products data book with the 8255. Hi David, Thank you very much for your offer, but someone already helped me on this and I'm all set. Unfortunately, today's post was not posted by me personally -- it got bounced back to the PICLIST. Thanks again for your kindness, time, and offer for help. I appreciate your response. Best regards, Ken Pergola -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics