STM32F10xxx Flash Memory Microcontrollers Stm32f1 PM0075 Programming Manual

• Table 1. Applicable products
• 1 Overview
  • 1.1 Features
  • 1.2 Flash module organization
    • Table 2. Flash module organization (low-density devices)
    • Table 3. Flash module organization (medium-density devices)
    • Table 4. Flash module organization (high-density devices)
    • Table 5. Flash module organization (connectivity line devices)
• 2 Reading/programming the embedded Flash memory
  • 2.1 Introduction
  • 2.2 Read operation
    • 2.2.1 Instruction fetch
    • 2.2.2 D-Code interface
    • 2.2.3 Flash access controller
  • 2.3 Flash program and erase controller (FPEC)
    • 2.3.1 Key values
    • 2.3.2 Unlocking the Flash memory
    • 2.3.3 Main Flash memory programming
      • Figure 1. Programming procedure
    • 2.3.4 Flash memory erase
      • Figure 2. Flash memory Page Erase procedure
      • Figure 3. Flash memory Mass Erase procedure
    • 2.3.5 Option byte programming
  • 2.4 Protections
    • 2.4.1 Read protection
      • Table 6. Flash memory protection status
    • 2.4.2 Write protection
    • 2.4.3 Option byte block write protection
  • 2.5 Option byte description
    • Table 7. Option byte format
    • Table 8. Option byte organization
    • Table 9. Description of the option bytes
      • Note: Only bits [16:18] are used, bits [23:19]: 0x1F are not used.
• 3 Register descriptions
  • Table 10. Abbreviations
  • 3.1 Flash access control register (FLASH_ACR)
  • 3.2 FPEC key register (FLASH_KEYR)
  • 3.3 Flash OPTKEY register (FLASH_OPTKEYR)
  • 3.4 Flash status register (FLASH_SR)
    • Note: EOP is asserted at the end of each successful program or erase operation
    • Note: The STRT bit in the FLASH_CR register should be reset before starting a programming operation.
  • 3.5 Flash control register (FLASH_CR)
  • 3.6 Flash address register (FLASH_AR)
    • Note: Write access to this register is blocked when the BSY bit in the FLASH_SR register is set.
  • 3.7 Option byte register (FLASH_OBR)
    • Note: This bit is read-only.
    • Note: This bit is read-only.
  • 3.8 Write protection register (FLASH_WRPR)
    • Note: These bits are read-only.
  • 3.9 Flash register map
    • Table 11. Flash interface - register map and reset values
• 4 Revision history
  • Table 12. Document revision history