Thomas N wrote: > can I access the memory on BANK0 directly while I am on Bank1, 2 or > 3? While in Bank1, 2, or 3, you can always access memory in Bank0 (or any other bank) INDIRECTLY, through the FSR. > Looking at the memory map of the PIC16F877, on BANK1, 2, and 3. > There is a section labelled "accesses 70h-7Fh". What does it mean? > I am guessing that if I put data on BANK0 from location 70 to 7F, > I can access the data from any bank (without having to switch back > to bank0). Am I right? Yes. Whatever you store in 70h-7Fh will also appear at F0h-FFh, 170h-17Fh, and 1F0h-1FFh. -Andy === Andrew Warren --- aiw@cypress.com === Staff Systems Engineer, IPD === Cypress Semiconductor Corporation -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics