The 0xFF..F0 address is specifically the address on the flash. However, the 0xFF...F0 is also an address in the CPU address range. It probably points to the SPI flash BIOS, but ultimately the exact details may differ from chip to chip.
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Copy edited (e.g. ref. <https://en.wikipedia.org/wiki/Central_processing_unit>, <https://en.wikipedia.org/wiki/Serial_Peripheral_Interface>, and <https://en.wikipedia.org/wiki/BIOS>). Used more standard formatting (we have italics and bold on this platform).
Peter Mortensen
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marshal craft
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