SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
Flash Program/Erase Key (FLPEKEY)
This register provides a mechanism for protection from inadvertent writes to flash by supplying a 16-bit key. If the KEY value in the BOOTCFG register is 0, then this value is used as the 16-bit key in place of 0xA442 in the FMC/FMC2 registers for committed flash writes.
This can be used for cases where a new image is downloaded and the first word of the new image has the 16-bit key value to be used for that product. This 16-bit key is used to allow the write to FMC or FMC2 to take place.
FLPEKEY is shown in Figure 7-17 and described in Table 7-16.
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31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
RESERVED | PEKEY | ||||||||||||||||||||||||||||||
R-0x0 | R-0xFFFF | ||||||||||||||||||||||||||||||