Pic 16f and register banking explained 2012-03-25

PIC 16F And iRAM Banking

By Jon Wilder

As some of you have noticed, the internal RAM in the PIC 16F appears to be arranged in “banks”. Each bank holds 128 RAM registers total. The first 128 RAM locations are in bank 0, the next 128 RAM locations are in bank 1, so on and so forth.

But hold on...is this REALLY the case? If it is, then why is it that when we indirect address via the FSR pointer register that we can access 256 RAM locations without having to bank select?

Because this...

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