12.1.4.7.1.1 NAND Flash Specific Header Detection

After receiving the Initialization and Reset command, the ROM code reads the first page without an ECC check, to determine whether the NAND parameter header is present. The header is made of 52 times the same 32-bit word (for redundancy reasons) which must contain NAND and PMECC parameters used to correctly perform the read of the rest of the data in the NAND. This 32-bit word is described below.

If the header is valid, the Boot program continues with the detection of a valid code.