block/FLASH:
  description: Flash
  items:
  - name: ACR
    description: Access control register
    byte_offset: 0
    fieldset: ACR
  - name: PECR
    description: Program/erase control register
    byte_offset: 4
    fieldset: PECR
  - name: PDKEYR
    description: Power down key register
    byte_offset: 8
    access: Write
    fieldset: PDKEYR
  - name: PEKEYR
    description: Program/erase key register
    byte_offset: 12
    access: Write
    fieldset: PEKEYR
  - name: PRGKEYR
    description: Program memory key register
    byte_offset: 16
    access: Write
    fieldset: PRGKEYR
  - name: OPTKEYR
    description: Option byte key register
    byte_offset: 20
    access: Write
    fieldset: OPTKEYR
  - name: SR
    description: Status register
    byte_offset: 24
    fieldset: SR
  - name: OBR
    description: Option byte register
    byte_offset: 28
    access: Read
    fieldset: OBR
  - name: WRPR1
    description: Write protection register
    byte_offset: 32
    fieldset: WRPR1
  - name: WRPR2
    description: Write protection register
    byte_offset: 128
    fieldset: WRPR2
  - name: WRPR3
    description: Write protection register
    byte_offset: 132
    fieldset: WRPR3
fieldset/ACR:
  description: Access control register
  fields:
  - name: LATENCY
    description: Latency
    bit_offset: 0
    bit_size: 1
  - name: PRFTEN
    description: Prefetch enable
    bit_offset: 1
    bit_size: 1
  - name: ACC64
    description: 64-bit access
    bit_offset: 2
    bit_size: 1
  - name: SLEEP_PD
    description: Flash mode during Sleep
    bit_offset: 3
    bit_size: 1
  - name: RUN_PD
    description: Flash mode during Run
    bit_offset: 4
    bit_size: 1
fieldset/OBR:
  description: Option byte register
  fields:
  - name: RDPRT
    description: Read protection
    bit_offset: 0
    bit_size: 8
  - name: BOR_LEV
    description: BOR_LEV
    bit_offset: 16
    bit_size: 4
  - name: IWDG_SW
    description: IWDG_SW
    bit_offset: 20
    bit_size: 1
  - name: nRTS_STOP
    description: nRTS_STOP
    bit_offset: 21
    bit_size: 1
  - name: nRST_STDBY
    description: nRST_STDBY
    bit_offset: 22
    bit_size: 1
  - name: BFB2
    description: Boot From Bank 2
    bit_offset: 23
    bit_size: 1
fieldset/OPTKEYR:
  description: Option byte key register
  fields:
  - name: OPTKEYR
    description: Option byte key
    bit_offset: 0
    bit_size: 32
fieldset/PDKEYR:
  description: Power down key register
  fields:
  - name: PDKEYR
    description: RUN_PD in FLASH_ACR key
    bit_offset: 0
    bit_size: 32
fieldset/PECR:
  description: Program/erase control register
  fields:
  - name: PELOCK
    description: FLASH_PECR and data EEPROM lock
    bit_offset: 0
    bit_size: 1
  - name: PRGLOCK
    description: Program memory lock
    bit_offset: 1
    bit_size: 1
  - name: OPTLOCK
    description: Option bytes block lock
    bit_offset: 2
    bit_size: 1
  - name: PROG
    description: Program memory selection
    bit_offset: 3
    bit_size: 1
  - name: DATA
    description: Data EEPROM selection
    bit_offset: 4
    bit_size: 1
  - name: FTDW
    description: Fixed time data write for Byte, Half Word and Word programming
    bit_offset: 8
    bit_size: 1
  - name: ERASE
    description: Page or Double Word erase mode
    bit_offset: 9
    bit_size: 1
  - name: FPRG
    description: Half Page/Double Word programming mode
    bit_offset: 10
    bit_size: 1
  - name: PARALLELBANK
    description: Parallel bank mode
    bit_offset: 15
    bit_size: 1
  - name: EOPIE
    description: End of programming interrupt enable
    bit_offset: 16
    bit_size: 1
  - name: ERRIE
    description: Error interrupt enable
    bit_offset: 17
    bit_size: 1
  - name: OBL_LAUNCH
    description: Launch the option byte loading
    bit_offset: 18
    bit_size: 1
fieldset/PEKEYR:
  description: Program/erase key register
  fields:
  - name: PEKEYR
    description: FLASH_PEC and data EEPROM key
    bit_offset: 0
    bit_size: 32
fieldset/PRGKEYR:
  description: Program memory key register
  fields:
  - name: PRGKEYR
    description: Program memory key
    bit_offset: 0
    bit_size: 32
fieldset/SR:
  description: Status register
  fields:
  - name: BSY
    description: Write/erase operations in progress
    bit_offset: 0
    bit_size: 1
  - name: EOP
    description: End of operation
    bit_offset: 1
    bit_size: 1
  - name: ENDHV
    description: End of high voltage
    bit_offset: 2
    bit_size: 1
  - name: READY
    description: Flash memory module ready after low power mode
    bit_offset: 3
    bit_size: 1
  - name: WRPERR
    description: Write protected error
    bit_offset: 8
    bit_size: 1
  - name: PGAERR
    description: Programming alignment error
    bit_offset: 9
    bit_size: 1
  - name: SIZERR
    description: Size error
    bit_offset: 10
    bit_size: 1
  - name: OPTVERR
    description: Option validity error
    bit_offset: 11
    bit_size: 1
  - name: OPTVERRUSR
    description: Option UserValidity Error
    bit_offset: 12
    bit_size: 1
fieldset/WRPR1:
  description: Write protection register
  fields:
  - name: WRP1
    description: Write protection
    bit_offset: 0
    bit_size: 32
fieldset/WRPR2:
  description: Write protection register
  fields:
  - name: WRP2
    description: WRP2
    bit_offset: 0
    bit_size: 32
fieldset/WRPR3:
  description: Write protection register
  fields:
  - name: WRP3
    description: WRP3
    bit_offset: 0
    bit_size: 32