0x428 STMicroelectronics MCU Cortex-M3 STM32F100 High-density Value Line STM32F1 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 0xFF 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. 0x1 0x1 R Flash memory is not read-protected. Flash memory is read-protected. User Configuration WDG_SW 0x2 0x1 R Hardware watchdog Software watchdog nRST_STOP 0x3 0x1 R Reset generated when entering Stop mode No reset generated nRST_STDBY 0x4 0x1 R Reset generated when entering Standby mode No reset generated User Data Data0 User data 0 (8-bit) 0xA 0x8 R Data1 User data 1 (8-bit) 0x12 0x8 R Write Protection WRP0 0x0 0x20 R Write protection active on this sector Write protection not active on this sector Read Out Protection RDP Read protection option byte. The read protection is used to protect the software code stored in Flash memory. 0x0 0x8 W Level 0, no protection or any value other than 0xAA and 0xCC: Level 1, read protection User Configuration WDG_SW 0x10 0x1 W Hardware watchdog Software watchdog nRST_STOP 0x11 0x1 W Reset generated when entering Stop mode No reset generated nRST_STDBY 0x12 0x1 W Reset generated when entering Standby mode No reset generated User Data Data0 User data 0 (8-bit) 0x0 0x8 W Data1 User data 1 (8-bit) 0x10 0x8 W Write Protection WRP0 0x0 0x8 W Write protection active on this sector Write protection not active on this sector WRP8 0x10 0x8 W Write protection active on this sector Write protection not active on this sector WRP16 0x0 0x8 W Write protection active on this sector Write protection not active on this sector WRP24 0x10 0x8 W Write protection active on this sector Write protection not active on this sector 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 User Configuration WDG_SW 0x10 0x1 RW Hardware watchdog Software watchdog nRST_STOP 0x11 0x1 RW Reset generated when entering Stop mode No reset generated nRST_STDBY 0x12 0x1 RW Reset generated when entering Standby mode No reset generated User Data Data0 User data 0 (8-bit) 0x0 0x8 RW Data1 User data 1 (8-bit) 0x10 0x8 RW Write Protection WRP0 0x0 0x8 RW Write protection active on this sector Write protection not active on this sector WRP8 0x10 0x8 RW Write protection active on this sector Write protection not active on this sector WRP16 0x0 0x8 RW Write protection active on this sector Write protection not active on this sector WRP24 0x10 0x8 RW Write protection active on this sector Write protection not active on this sector