Attention is currently required from: Thomas Walker, Angel Pons.

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1 comment:

• File flashchips.c:

  • Patch Set #5, Line 16387: FEATURE_4BA

    Forgive me if I'm incorrect, but in the datasheet there is a section: 6.1.1 Extended Address […]

    Yes, two ways. Not three. :)

    Often there is a third way to access the space above 16MiB. The extended
    address register (EAR) works like a page selection. If you leave it at 0,
    you can access the first 16MiB with 24-bit address commands, if you set
    it to 1, you can access the second 16MiB and so on. Or in other words,
    internally the 32-bit address is composed of

        <EAR> | <24-bit from command>

    Maybe `FEATURE_4BA_EXT_ADDR` is a bit confusing and should be renamed?
    Other vendors don't use the term "extended address" unless they refer
    to this particular register.

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