10.2.4.2 SAM L11 Boot Configuration Row
Bit Pos. | Name | Usage |
Factory Setting |
Related Peripheral Register |
---|---|---|---|---|
7:0 | Reserved | Reserved | Reserved | Reserved |
15:8 | BS | Secure Flash (BS region) Size = BS*0x100 (2) | 0x00 | IDAU.SCFGB |
21:16 | BNSC | Non-Secure Callable Flash (BOOT region) Size = BNSC*0x20 | 0x00 | IDAU.SCFGB |
23:22 | Reserved | Reserved | Reserved | Reserved |
25:24 | BOOTOPT | Boot Option | 0x0 | Boot ROM |
31:26 | Reserved | Reserved | Reserved | Reserved |
39:32 | BOOTPROT | Boot Protection size = BOOTPROT*0x100 | 0x00 | IDAU.SCFGB |
47:40 | Reserved | Reserved | Reserved | Reserved |
48 | BCWEN | Boot Configuration Write Enable | 0x1 | NVMCTRL.SCFGB |
49 | BCREN | Boot Configuration Read Enable | 0x1 | NVMCTRL.SCFGB |
63:50 | Reserved | Reserved | Reserved | Reserved |
95:64 | BOCORCRC | Boot Configuration CRC for bit 63:0 | 0xDDE78140(1) | Boot ROM |
127:96 | Reserved | Reserved | Reserved | Reserved |
255:128 | CEKEY0 | Chip Erase Key 0 | All 1s | Boot ROM |
383:256 | CEKEY1 | Chip Erase Key 1 | All 1s | Boot ROM |
511:384 | CEKEY2 | Chip Erase Key 2 | All 1s | Boot ROM |
639:512 | CRCKEY | CRC Key | All 1s | Boot ROM |
895:640 | BOOTKEY | Secure Boot Key | All 1s | Boot ROM |
1791:896 | Reserved | Reserved | Reserved | Reserved |
2047:1792 | BOCORHASH | Boot Configuration Row Digest | All 1s | Boot ROM |
Note:
- BOCORCRC value after a ChipErase_ALL (CE2) is 0xC1D7ECC3.
- Secure Flash (BS region) = Secure Flash (BOOT region) + Non-Secure Callable Flash (BOOT region).
Offset | Bit Pos. |
Name | |||||||
---|---|---|---|---|---|---|---|---|---|
0x00 | 7:0 | Reserved | |||||||
0x01 | 15:8 | BS | |||||||
0x02 | 23:16 | Reserved | BNSC | ||||||
0x03 | 31:24 | Reserved | BOOTOPT | ||||||
0x04 | 39:32 | BOOTPROT | |||||||
0x05 | 47:40 | Reserved | |||||||
0x06 | 55:48 | Reserved | BCREN | BCWEN | |||||
0x07 | 63:56 | Reserved | |||||||
0x08-0x0B | 95:64 | BOCORCRC | |||||||
0x0C-0x0F | 127:96 | Reserved | |||||||
0x10-0x1F | 255:128 | CEKEY0 | |||||||
0x20-0x2F | 383:256 | CEKEY1 | |||||||
0x30-0x3F | 511:384 | CEKEY2 | |||||||
0x40-0x4F | 639:512 | CRCKEY | |||||||
0x50-0x6F | 895:640 | BOOTKEY | |||||||
0x70-0xDF | 1791:896 | Reserved | |||||||
0xE0-0xFF | 2047:1792 | BOCORHASH |