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I've recently started to read this intel's datasheet, but I don't understand section 2.16

enter image description here

This section shows the name of SPI signals and a short description of it.

The point is, how can I use that signals? Is there any way to "play" with that signals using assembly or any other language?

Antonio Sanchez
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    Those are chipset pins, not part of the CPU and not something that has any special asm instructions associated with it. You'd need a driver (that uses PCIe writes and reads) to some MMIO port or ports, I think. (i.e. normal stores and/or loads). – Peter Cordes Feb 27 '21 at 02:40
  • Looks like you are looking at the description of the SPI NOR controller. On Intel it’s used to connect flash chip with firmware. – 0andriy Feb 28 '21 at 08:48
  • I have eventually looked into the datasheet and it seems to me that I'm right (see chapter 22). – 0andriy Mar 01 '21 at 15:26

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