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