Thanks Jinx, Now that is comprehensive ... and all in one spot too. Thanks very much. Regards, Roger ----- Original Message ----- From: "Jinx" To: "Microcontroller discussion list - Public." Sent: Sunday, September 13, 2009 1:56 PM Subject: Re: [PIC] Unused port lines question >> unused port lines > > http://www.piclist.com/techref/logic/xtrapins.htm -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist