from the 16F628A LKR =-file, I read this ????? SHAREBANK NAME=gprnobnk0 START=0x70 END=0x7E SHAREBANK NAME=gprnobnk0 START=0xF0 END=0xFE SHAREBANK NAME=gprnobnk0 START=0x170 END=0x17E SHAREBANK NAME=gprnobnk0 START=0x1F0 END=0x1FE SHAREBANK NAME=gprnobnk1 START=0x7F END=0x7F SHAREBANK NAME=gprnobnk1 START=0xFF END=0xFF SHAREBANK NAME=gprnobnk1 START=0x17F END=0x17F DATABANK NAME=testreg START=0x1FF END=0x1FF PROTECTED Does this mean that register 0x1FF isn't shared with 0x7F, 0xFF, 0x17F ??? Can't find anything in the documentation. thanks, Stef Mientki -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist