Datasheet

69
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
12.4.1 Boot Sequence Configuration Register
Name: BSC_CR
Address: 0xFFFFFE54
Access: Read-write
Factory Value: 0x0000_0000
• BOOT: Boot Media Sequence
This value is defined in the product-dependent ROM code. It is only written if BOOTKEY carries the valid value.
Please refer to the “NVM Boot Sequence” section of this datasheet for details on BOOT value.
•BOOTKEY
0x6683 (BSC_KEY): Valid key to write the BSC_CR register; it needs to be written at the same time as the BOOT field.
Other values disable the write access. This key field is write-only.
31 30 29 28 27 26 25 24
BOOTKEY
23 22 21 20 19 18 17 16
BOOTKEY
15 14 13 12 11 10 9 8
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76543210
BOOT