> Found NAND chip on Chip Select 1 This sort-of implies that this is one of those chips with internal Chip Sel= ect Generation, which means that the address ranges could be set by early s= oftware, perhaps aren't even constant over the execution time of the OS, an= d may need special treatment from JTAG manipulation... BillW --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .