LOCK=B_0x0, SWAP_SECT_REQ=B_0x0, ALT_SECT=B_0x0, SWAP_OFFSET=B_0x0, ALT_SECT_ERASE=B_0x0
FLASH secure OBK configuration register
| LOCK | OBKCFGR lock option configuration bit 0 (B_0x0): FLASH_OBKCFGR register unlocked 1 (B_0x1): FLASH_OBKCFGR register locked |
| SWAP_SECT_REQ | OBK swap sector request bit 0 (B_0x0): no swap requested 1 (B_0x1): launch the sector swap |
| ALT_SECT | alternate sector bit 0 (B_0x0): current OBK sector is mapped to OBK address range for access 1 (B_0x1): alternate OBK sector is mapped to OBK address range for access |
| ALT_SECT_ERASE | alternate sector erase bit 0 (B_0x0): do not touch OBK sector 1 (B_0x1): erase the alternate OBK sector |
| SWAP_OFFSET | key index (offset /16 bits) pointing for next swap. 0 (B_0x0): no OBK is copied from current to alternate OBK sector during SWAP operation. 1 (B_0x1): only the first OBK data (128 bits) are copied from current to alternate OBK sector 2 (B_0x2): the two first OBK data are copied 511 (B_0x1FF): the 511 first OBK data are copied |