block/AFIO:
  description: Alternate function I/O
  items:
  - byte_offset: 0
    description: Event Control Register (AFIO_EVCR)
    fieldset: EVCR
    name: EVCR
  - byte_offset: 4
    description: AF remap and debug I/O configuration register (AFIO_MAPR)
    fieldset: MAPR
    name: MAPR
  - array:
      len: 4
      stride: 4
    byte_offset: 8
    description: External interrupt configuration register 1 (AFIO_EXTICR1)
    fieldset: EXTICR
    name: EXTICR
  - byte_offset: 28
    description: AF remap and debug I/O configuration register
    fieldset: MAPR2
    name: MAPR2
fieldset/EVCR:
  description: Event Control Register (AFIO_EVCR)
  fields:
  - bit_offset: 0
    bit_size: 4
    description: Pin selection
    name: PIN
  - bit_offset: 4
    bit_size: 3
    description: Port selection
    name: PORT
  - bit_offset: 7
    bit_size: 1
    description: Event Output Enable
    name: EVOE
fieldset/EXTICR:
  description: External interrupt configuration register 3 (AFIO_EXTICR3)
  fields:
  - array:
      len: 4
      stride: 4
    bit_offset: 0
    bit_size: 4
    description: EXTI12 configuration
    name: EXTI
fieldset/MAPR:
  description: AF remap and debug I/O configuration register (AFIO_MAPR)
  fields:
  - bit_offset: 0
    bit_size: 1
    description: SPI1 remapping
    name: SPI1_REMAP
  - bit_offset: 1
    bit_size: 1
    description: I2C1 remapping
    name: I2C1_REMAP
  - bit_offset: 2
    bit_size: 1
    description: USART1 remapping
    name: USART1_REMAP
  - bit_offset: 3
    bit_size: 1
    description: USART2 remapping
    name: USART2_REMAP
  - bit_offset: 4
    bit_size: 2
    description: USART3 remapping
    name: USART3_REMAP
  - bit_offset: 6
    bit_size: 2
    description: TIM1 remapping
    name: TIM1_REMAP
  - bit_offset: 8
    bit_size: 2
    description: TIM2 remapping
    name: TIM2_REMAP
  - bit_offset: 10
    bit_size: 2
    description: TIM3 remapping
    name: TIM3_REMAP
  - bit_offset: 12
    bit_size: 1
    description: TIM4 remapping
    name: TIM4_REMAP
  - bit_offset: 13
    bit_size: 2
    description: CAN1 remapping
    name: CAN_REMAP
  - bit_offset: 13
    bit_size: 2
    description: CAN1 remapping
    name: CAN1_REMAP
  - bit_offset: 15
    bit_size: 1
    description: Port D0/Port D1 mapping on OSCIN/OSCOUT
    name: PD01_REMAP
  - bit_offset: 16
    bit_size: 1
    description: Set and cleared by software
    name: TIM5CH4_IREMAP
  - bit_offset: 17
    bit_size: 1
    description: ADC 1 External trigger injected conversion remapping
    name: ADC1_ETRGINJ_REMAP
  - bit_offset: 18
    bit_size: 1
    description: ADC 1 external trigger regular conversion remapping
    name: ADC1_ETRGREG_REMAP
  - bit_offset: 19
    bit_size: 1
    description: ADC 2 external trigger injected conversion remapping
    name: ADC2_ETRGINJ_REMAP
  - bit_offset: 20
    bit_size: 1
    description: ADC 2 external trigger regular conversion remapping
    name: ADC2_ETRGREG_REMAP
  - bit_offset: 21
    bit_size: 1
    description: Ethernet MAC I/O remapping
    name: ETH_REMAP
  - bit_offset: 22
    bit_size: 1
    description: CAN2 I/O remapping
    name: CAN2_REMAP
  - bit_offset: 23
    bit_size: 1
    description: MII or RMII selection
    name: MII_RMII_SEL
  - bit_offset: 24
    bit_size: 3
    description: Serial wire JTAG configuration
    name: SWJ_CFG
  - bit_offset: 28
    bit_size: 1
    description: SPI3/I2S3 remapping
    name: SPI3_REMAP
  - bit_offset: 29
    bit_size: 1
    description: TIM2 internal trigger 1 remapping
    name: TIM2ITR1_IREMAP
  - bit_offset: 30
    bit_size: 1
    description: Ethernet PTP PPS remapping
    name: PTP_PPS_REMAP
fieldset/MAPR2:
  description: AF remap and debug I/O configuration register
  fields:
  - bit_offset: 0
    bit_size: 1
    description: TIM15 remapping
    name: TIM15_REMAP
  - bit_offset: 1
    bit_size: 1
    description: TIM16 remapping
    name: TIM16_REMAP
  - bit_offset: 2
    bit_size: 1
    description: TIM17 remapping
    name: TIM17_REMAP
  - bit_offset: 3
    bit_size: 1
    description: CEC remapping
    name: CEC_REMAP
  - bit_offset: 4
    bit_size: 1
    description: TIM1 DMA remapping
    name: TIM1_DMA_REMAP
  - bit_offset: 5
    bit_size: 1
    description: TIM9 remapping
    name: TIM9_REMAP
  - bit_offset: 6
    bit_size: 1
    description: TIM10 remapping
    name: TIM10_REMAP
  - bit_offset: 7
    bit_size: 1
    description: TIM11 remapping
    name: TIM11_REMAP
  - bit_offset: 8
    bit_size: 1
    description: TIM13 remapping
    name: TIM13_REMAP
  - bit_offset: 9
    bit_size: 1
    description: TIM14 remapping
    name: TIM14_REMAP
  - bit_offset: 10
    bit_size: 1
    description: NADV connect/disconnect
    name: FSMC_NADV
  - bit_offset: 11
    bit_size: 1
    description: TIM67_DAC DMA remapping
    name: TIM67_DAC_DMA_REMAP
  - bit_offset: 12
    bit_size: 1
    description: TIM12 remapping
    name: TIM12_REMAP
  - bit_offset: 13
    bit_size: 1
    description: Miscellaneous features remapping
    name: MISC_REMAP