---
block/SYSCFG:
  description: System configuration controller
  items:
    - name: CFGR1
      description: configuration register 1
      byte_offset: 0
      fieldset: CFGR1
    - name: CFGR2
      description: CFGR2
      byte_offset: 4
      fieldset: CFGR2
    - name: EXTICR
      description: external interrupt configuration register
      array:
        len: 4
        stride: 4
      byte_offset: 8
      fieldset: EXTICR
    - name: CFGR3
      description: CFGR3
      byte_offset: 32
      fieldset: CFGR3
fieldset/CFGR1:
  description: configuration register 1
  fields:
    - name: MEM_MODE
      description: Memory mapping selection bits
      bit_offset: 0
      bit_size: 2
    - name: UFB
      description: User bank swapping
      bit_offset: 3
      bit_size: 1
    - name: BOOT_MODE
      description: Boot mode selected by the boot pins status bits
      bit_offset: 8
      bit_size: 2
fieldset/CFGR2:
  description: CFGR2
  fields:
    - name: FWDIS
      description: Firewall disable bit
      bit_offset: 0
      bit_size: 1
    - name: I2C_PB6_FMP
      description: Fm+ drive capability on PB6 enable bit
      bit_offset: 8
      bit_size: 1
    - name: I2C_PB7_FMP
      description: Fm+ drive capability on PB7 enable bit
      bit_offset: 9
      bit_size: 1
    - name: I2C_PB8_FMP
      description: Fm+ drive capability on PB8 enable bit
      bit_offset: 10
      bit_size: 1
    - name: I2C_PB9_FMP
      description: Fm+ drive capability on PB9 enable bit
      bit_offset: 11
      bit_size: 1
    - name: I2C1_FMP
      description: I2C1 Fm+ drive capability enable bit
      bit_offset: 12
      bit_size: 1
    - name: I2C2_FMP
      description: I2C2 Fm+ drive capability enable bit
      bit_offset: 13
      bit_size: 1
    - name: I2C3_FMP
      description: I2C3 Fm+ drive capability enable bit
      bit_offset: 14
      bit_size: 1
fieldset/CFGR3:
  description: CFGR3
  fields:
    - name: EN_VREFINT
      description: VREFINT enable and scaler control for COMP2 enable bit
      bit_offset: 0
      bit_size: 1
    - name: SEL_VREF_OUT
      description: VREFINT_ADC connection bit
      bit_offset: 4
      bit_size: 2
    - name: ENBUF_VREFINT_ADC
      description: VREFINT reference for ADC enable bit
      bit_offset: 8
      bit_size: 1
    - name: ENBUF_SENSOR_ADC
      description: Temperature sensor reference for ADC enable bit
      bit_offset: 9
      bit_size: 1
    - name: ENBUF_VREFINT_COMP2
      description: VREFINT reference for COMP2 scaler enable bit
      bit_offset: 12
      bit_size: 1
    - name: ENREF_HSI48
      description: VREFINT reference for HSI48 oscillator enable bit
      bit_offset: 13
      bit_size: 1
    - name: VREFINT_RDYF
      description: VREFINT ready flag
      bit_offset: 30
      bit_size: 1
    - name: REF_LOCK
      description: SYSCFG_CFGR3 lock bit
      bit_offset: 31
      bit_size: 1
fieldset/EXTICR:
  description: external interrupt configuration register 1-4
  fields:
    - name: EXTI
      description: EXTI configuration bits
      bit_offset: 0
      bit_size: 4
      array:
        len: 4
        stride: 4