Are there any good documents that summarize the PIC24 architecture, =20 shorter and better organized than the many documents that make up the =20 reference manuals? I guess I'm sort of looking for something that =20 describes the features common across the various chips; I read the =20 "Programmer's Reference Manual" and found it rather divorced from the =20 details (and so ... generic.) BillW --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .