This is section 5 of the Family Reference Manual I mentioned, I think it=20 should be of some help: http://ww1.microchip.com/downloads/en/DeviceDoc/61121D.pdf The rest can be found here: http://www.microchip.com/TechDoc.aspx?type=3DReferenceManuals (filter by PIC32 to get the list of sections) --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .