0x427 STMicroelectronics MCU Cortex-M3 STM32L100xC/STM32L15xxC/STM32L162xC STM32L1 ARM 32-bit Cortex-M3 based device Embedded SRAM Storage 0x00 RWE Single Embedded Flash Storage The Flash memory interface manages CPU AHB I-Code and D-Code accesses to the Flash memory. It implements the erase and program Flash memory operations and the read and write protection mechanisms 0x00 RWE Single 0x4 Data EEPROM Storage The Data EEPROM memory block. It contains user data. 0x00 RWE Single 0x4 MirrorOptionBytes Storage Mirror Option Bytes contains the extra area. 0xFF RW Single 0x4 Option Bytes Configuration RW Read Out Protection RDP Read protection option byte. The read protection is used to protect the software code stored in Flash memory. 0x0 0x8 RW Level 0, no protection or any value other than 0xAA and 0xCC: Level 1, read protection Level 2, chip protection PCROP Protection SPRMOD Sector protection mode selection option byte. 0x8 0x1 RW WRPx bit defines sector write protection WRPx bit defines sector read/write (PCROP) protection BOR Level BOR_LEV These bits contain the supply level threshold that activates/releases the reset. They can be written to program a new BOR level value into Flash memory 0x10 0x4 RW BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold for 1.45 V-1.55 V BOR Level OFF, reset level threshold for 1.45 V-1.55 V BOR Level 1, reset level threshold for 1.69 V-1.8 V BOR Level 2, reset level threshold for 1.94 V-2.1 V BOR Level 3, reset level threshold for 2.3 V-2.49 V BOR Level 4, reset level threshold for 2.54 V-2.74 V BOR Level 5, reset level threshold for 2.77 V-3.0 V User Configuration IWDG_SW 0x14 0x1 RW Hardware independent watchdog Software independent watchdog nRST_STOP 0x15 0x1 RW Reset generated when entering Stop mode No reset generated nRST_STDBY 0x16 0x1 RW Reset generated when entering Standby mode No reset generated Write Protection WRP0 0x0 0x20 RW Write protection not active Write protection active WRP0 0x0 0x20 RW read/Write protection active read/Write protection not active WRP32 0x0 0x20 RW Write protection not active Write protection active WRP32 0x0 0x20 RW read/Write protection active read/Write protection not active Read Out Protection RDP Read protection option byte. The read protection is used to protect the software code stored in Flash memory. 0x0 0x8 RW Level 0, no protection or any value other than 0xAA and 0xCC: Level 1, read protection Level 2, chip protection PCROP Protection SPRMOD Sector protection mode selection option byte. 0x8 0x1 RW WRPx bit defines sector write protection WRPx bit defines sector write/read (PCROP) protection BOR Level BOR_LEV These bits contain the supply level threshold that activates/releases the reset. They can be written to program a new BOR level value into Flash memory 0x0 0x4 RW BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold the 1.45 V-1.55 V BOR Level OFF, reset level threshold for 1.45 V-1.55 V BOR Level OFF, reset level threshold for 1.45 V-1.55 V BOR Level 1, reset level threshold for 1.69 V-1.8 V BOR Level 2, reset level threshold for 1.94 V-2.1 V BOR Level 3, reset level threshold for 2.3 V-2.49 V BOR Level 4, reset level threshold for 2.54 V-2.74 V BOR Level 5, reset level threshold for 2.77 V-3.0 V User Configuration IWDG_SW 0x4 0x1 RW Hardware independent watchdog Software independent watchdog nRST_STOP 0x5 0x1 RW Reset generated when entering Stop mode No reset generated nRST_STDBY 0x6 0x1 RW Reset generated when entering Standby mode No reset generated Write Protection WRP0 0x0 0x10 RW Write protection not active Write protection active WRP0 0x0 0x10 RW read/Write protection active read/Write protection active WRP16 0x0 0x10 RW Write protection not active Write protection active WRP16 0x0 0x10 RW read/Write protection active read/Write protection active WRP32 0x0 0x10 RW Write protection not active Write protection active WRP32 0x0 0x10 RW read/Write protection active read/Write protection not active WRP48 0x0 0x10 RW Write protection not active Write protection active WRP48 0x0 0x10 RW read/Write protection active read/Write protection not active