Bureaucrats, dave_user, Administrators
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* once it is satisfied, it executes the boot code
=== Boot options ===
Two options are available related to system boot. They are identified by the ''Boot field'' of the ordering code as follows:
In any case, boot process is managed by on-chip boot ROM code that is described in detail in processor's Reference Manual.
==== SPI NOR / SD option ====
Selection of primary boot device is determined by the BOOT_MODE_SEL signal as follows:
* BOOT_MODE_SEL = 0
** in case no valid image is found in NOR flash, boot ROM shall enable USB serial download mode automatically
==== NAND / SD option ====
Selection of primary boot device is determined by the BOOT_MODE_SEL signal as follows:
* BOOT_MODE_SEL = 0