I did read it. I set the rp0 bit in hopes of addressing the option reg. After the code was imported to the PSP and didn't work, I disassembled it and found that trm0 was being addressed instead. Isn't setting rp0 the method of addressing bank1? -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads