Hi Eishi
it is explained in sect.8.5.1.1 NOR flash boot operation i.MX6DQ Reference Manual:
Booting from the NOR flash is supported via the EIM interface. The ROM reads the
Image Vector Table and Boot Data structures to determine if the image can be executed
directly from the EIM address space or copied to another memory.
https://www.nxp.com/docs/en/reference-manual/IMX6DQRM.pdf
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------