---
block/FLASH:
  description: FLASH
  items:
  - byte_offset: 0
    description: Flash access control register
    fieldset: ACR
    name: ACR
  - access: Write
    byte_offset: 4
    description: Flash key register
    fieldset: KEYR
    name: KEYR
  - access: Write
    byte_offset: 8
    description: Flash option key register
    fieldset: OPTKEYR
    name: OPTKEYR
  - byte_offset: 12
    description: Status register
    fieldset: SR
    name: SR
  - byte_offset: 16
    description: Control register
    fieldset: CR
    name: CR
  - byte_offset: 20
    description: Flash option control register
    fieldset: OPTCR
    name: OPTCR
  - byte_offset: 24
    description: Flash option control register 1
    fieldset: OPTCR1
    name: OPTCR1
  - byte_offset: 28
    description: Flash option control register
    fieldset: OPTCR2
    name: OPTCR2
enum/ARTEN:
  bit_size: 1
  variants:
  - description: ART Accelerator is disabled
    name: Disabled
    value: 0
  - description: ART Accelerator is enabled
    name: Enabled
    value: 1
enum/ARTRST:
  bit_size: 1
  variants:
  - description: Accelerator is not reset
    name: NotReset
    value: 0
  - description: Accelerator is reset
    name: Reset
    value: 1
enum/EOPIE:
  bit_size: 1
  variants:
  - description: End of operation interrupt disabled
    name: Disabled
    value: 0
  - description: End of operation interrupt enabled
    name: Enabled
    value: 1
enum/ERRIE:
  bit_size: 1
  variants:
  - description: Error interrupt generation disabled
    name: Disabled
    value: 0
  - description: Error interrupt generation enabled
    name: Enabled
    value: 1
enum/LATENCY:
  bit_size: 4
  variants:
  - description: 0 wait states
    name: WS0
    value: 0
  - description: 1 wait states
    name: WS1
    value: 1
  - description: 2 wait states
    name: WS2
    value: 2
  - description: 3 wait states
    name: WS3
    value: 3
  - description: 4 wait states
    name: WS4
    value: 4
  - description: 5 wait states
    name: WS5
    value: 5
  - description: 6 wait states
    name: WS6
    value: 6
  - description: 7 wait states
    name: WS7
    value: 7
  - description: 8 wait states
    name: WS8
    value: 8
  - description: 9 wait states
    name: WS9
    value: 9
  - description: 10 wait states
    name: WS10
    value: 10
  - description: 11 wait states
    name: WS11
    value: 11
  - description: 12 wait states
    name: WS12
    value: 12
  - description: 13 wait states
    name: WS13
    value: 13
  - description: 14 wait states
    name: WS14
    value: 14
  - description: 15 wait states
    name: WS15
    value: 15
enum/LOCK:
  bit_size: 1
  variants:
  - description: FLASH_CR register is unlocked
    name: Unlocked
    value: 0
  - description: FLASH_CR register is locked
    name: Locked
    value: 1
enum/MER:
  bit_size: 1
  variants:
  - description: Erase activated for all user sectors
    name: MassErase
    value: 1
enum/PG:
  bit_size: 1
  variants:
  - description: Flash programming activated
    name: Program
    value: 1
enum/PRFTEN:
  bit_size: 1
  variants:
  - description: Prefetch is disabled
    name: Disabled
    value: 0
  - description: Prefetch is enabled
    name: Enabled
    value: 1
enum/PSIZE:
  bit_size: 2
  variants:
  - description: Program x8
    name: PSIZE8
    value: 0
  - description: Program x16
    name: PSIZE16
    value: 1
  - description: Program x32
    name: PSIZE32
    value: 2
  - description: Program x64
    name: PSIZE64
    value: 3
enum/SER:
  bit_size: 1
  variants:
  - description: Erase activated for selected sector
    name: SectorErase
    value: 1
enum/STRT:
  bit_size: 1
  variants:
  - description: Trigger an erase operation
    name: Start
    value: 1
fieldset/ACR:
  description: Flash access control register
  fields:
  - bit_offset: 0
    bit_size: 4
    description: Latency
    enum: LATENCY
    name: LATENCY
  - bit_offset: 8
    bit_size: 1
    description: Prefetch enable
    enum: PRFTEN
    name: PRFTEN
  - bit_offset: 9
    bit_size: 1
    description: ART Accelerator Enable
    enum: ARTEN
    name: ARTEN
  - bit_offset: 11
    bit_size: 1
    description: ART Accelerator reset
    enum: ARTRST
    name: ARTRST
fieldset/CR:
  description: Control register
  fields:
  - bit_offset: 0
    bit_size: 1
    description: Programming
    enum: PG
    name: PG
  - bit_offset: 1
    bit_size: 1
    description: Sector Erase
    enum: SER
    name: SER
  - bit_offset: 2
    bit_size: 1
    description: Mass Erase of sectors 0 to 11
    enum: MER
    name: MER
  - bit_offset: 3
    bit_size: 4
    description: Sector number
    name: SNB
  - bit_offset: 8
    bit_size: 2
    description: Program size
    enum: PSIZE
    name: PSIZE
  - bit_offset: 16
    bit_size: 1
    description: Start
    enum: STRT
    name: STRT
  - bit_offset: 24
    bit_size: 1
    description: End of operation interrupt enable
    enum: EOPIE
    name: EOPIE
  - bit_offset: 25
    bit_size: 1
    description: Error interrupt enable
    enum: ERRIE
    name: ERRIE
  - bit_offset: 26
    bit_size: 1
    description: PCROP error interrupt enable
    name: RDERRIE
  - bit_offset: 31
    bit_size: 1
    description: Lock
    enum: LOCK
    name: LOCK
fieldset/KEYR:
  description: Flash key register
  fields:
  - bit_offset: 0
    bit_size: 32
    description: FPEC key
    name: KEY
fieldset/OPTCR:
  description: Flash option control register
  fields:
  - bit_offset: 0
    bit_size: 1
    description: Option lock
    name: OPTLOCK
  - bit_offset: 1
    bit_size: 1
    description: Option start
    name: OPTSTRT
  - bit_offset: 2
    bit_size: 2
    description: BOR reset Level
    name: BOR_LEV
  - bit_offset: 4
    bit_size: 1
    description: User option bytes
    name: WWDG_SW
  - bit_offset: 5
    bit_size: 1
    description: WDG_SW User option bytes
    name: IWDG_SW
  - bit_offset: 6
    bit_size: 1
    description: nRST_STOP User option bytes
    name: nRST_STOP
  - bit_offset: 7
    bit_size: 1
    description: nRST_STDBY User option bytes
    name: nRST_STDBY
  - bit_offset: 8
    bit_size: 8
    description: Read protect
    name: RDP
  - bit_offset: 16
    bit_size: 8
    description: Not write protect
    name: nWRP
  - bit_offset: 28
    bit_size: 1
    description: Dual Boot mode (valid only when nDBANK=0)
    name: nDBOOT
  - bit_offset: 29
    bit_size: 1
    description: Not dual bank mode
    name: nDBANK
  - bit_offset: 30
    bit_size: 1
    description: Independent watchdog counter freeze in standby mode
    name: IWDG_STDBY
  - bit_offset: 31
    bit_size: 1
    description: Independent watchdog counter freeze in Stop mode
    name: IWDG_STOP
fieldset/OPTCR1:
  description: Flash option control register 1
  fields:
  - bit_offset: 0
    bit_size: 16
    description: Boot base address when Boot pin =0
    name: BOOT_ADD0
  - bit_offset: 16
    bit_size: 16
    description: Boot base address when Boot pin =1
    name: BOOT_ADD1
fieldset/OPTCR2:
  description: Flash option control register
  fields:
  - bit_offset: 0
    bit_size: 8
    description: PCROP option byte
    name: PCROPi
  - bit_offset: 31
    bit_size: 1
    description: PCROP zone preserved when RDP level decreased
    name: PCROP_RDP
fieldset/OPTKEYR:
  description: Flash option key register
  fields:
  - bit_offset: 0
    bit_size: 32
    description: Option byte key
    name: OPTKEYR
fieldset/SR:
  description: Status register
  fields:
  - bit_offset: 0
    bit_size: 1
    description: End of operation
    name: EOP
  - bit_offset: 1
    bit_size: 1
    description: Operation error
    name: OPERR
  - bit_offset: 4
    bit_size: 1
    description: Write protection error
    name: WRPERR
  - bit_offset: 5
    bit_size: 1
    description: Programming alignment error
    name: PGAERR
  - bit_offset: 6
    bit_size: 1
    description: Programming parallelism error
    name: PGPERR
  - bit_offset: 7
    bit_size: 1
    description: Erase Sequence Error
    name: ERSERR
  - bit_offset: 8
    bit_size: 1
    description: RDERR
    name: RDERR
  - bit_offset: 16
    bit_size: 1
    description: Busy
    name: BSY