Document: i.MX RT1020 Processor Reference Manual, Rev. 1, 12/2018
Section: 8.2 Overview
It says: "The DCD is restricted to the memory areas and peripheral addresses that are considered essential for the boot purposes (see Write data command)."
So I followed the link to here:
Section: 188.8.131.52 Write data command
The NOTE at the end of this subsection says: "The list of allowable blocks and target addresses for the chip are provided below".
I can't find the list of allowable addresses (for the DCD). The table is missing.
The reference manual for the RT1050 does have a table after the equivalent NOTE (Table 9-42. Valid DCD address ranges).
Can I assume the address ranges are the same for the RT1020?