---
block/EXTI:
  description: External interrupt/event controller
  items:
    - name: IMR
      description: Interrupt mask register (EXTI_IMR)
      byte_offset: 128
      reset_value: 0
      fieldset: IMR
    - name: EMR
      description: Event mask register (EXTI_EMR)
      byte_offset: 132
      reset_value: 0
      fieldset: EMR
    - name: RTSR
      description: Rising Trigger selection register (EXTI_RTSR)
      byte_offset: 0
      reset_value: 0
      fieldset: RTSR
    - name: FTSR
      description: Falling Trigger selection register (EXTI_FTSR)
      byte_offset: 4
      reset_value: 0
      fieldset: FTSR
    - name: SWIER
      description: Software interrupt event register (EXTI_SWIER)
      byte_offset: 8
      reset_value: 0
      fieldset: SWIER
    - name: PR
      description: Pending register (EXTI_PR)
      byte_offset: 136
      reset_value: 0
      fieldset: PR
fieldset/EMR:
  description: Event mask register (EXTI_EMR)
  fields:
    - name: MR
      description: Event Mask on line 0
      bit_offset: 0
      bit_size: 1
      array:
        len: 23
        stride: 1
      enum: MR
fieldset/FTSR:
  description: Falling Trigger selection register (EXTI_FTSR)
  fields:
    - name: TR
      description: Falling trigger event configuration of line 0
      bit_offset: 0
      bit_size: 1
      array:
        len: 23
        stride: 1
      enum: TR
fieldset/IMR:
  description: Interrupt mask register (EXTI_IMR)
  fields:
    - name: MR
      description: Interrupt Mask on line 0
      bit_offset: 0
      bit_size: 1
      array:
        len: 23
        stride: 1
      enum: MR
fieldset/PR:
  description: Pending register (EXTI_PR)
  fields:
    - name: PR
      description: Pending bit 0
      bit_offset: 0
      bit_size: 1
      array:
        len: 23
        stride: 1
      enum_read: PRR
      enum_write: PRW
fieldset/RTSR:
  description: Rising Trigger selection register (EXTI_RTSR)
  fields:
    - name: TR
      description: Rising trigger event configuration of line 0
      bit_offset: 0
      bit_size: 1
      array:
        len: 23
        stride: 1
      enum: TR
fieldset/SWIER:
  description: Software interrupt event register (EXTI_SWIER)
  fields:
    - name: SWIER
      description: Software Interrupt on line 0
      bit_offset: 0
      bit_size: 1
      array:
        len: 23
        stride: 1
      enum_write: SWIERW
enum/MR:
  bit_size: 1
  variants:
    - name: Masked
      description: Interrupt request line is masked
      value: 0
    - name: Unmasked
      description: Interrupt request line is unmasked
      value: 1
enum/TR:
  bit_size: 1
  variants:
    - name: Disabled
      description: Falling edge trigger is disabled
      value: 0
    - name: Enabled
      description: Falling edge trigger is enabled
      value: 1
enum/PRR:
  bit_size: 1
  variants:
    - name: NotPending
      description: No trigger request occurred
      value: 0
    - name: Pending
      description: Selected trigger request occurred
      value: 1
enum/PRW:
  bit_size: 1
  variants:
    - name: Clear
      description: Clears pending bit
      value: 1
enum/SWIERW:
  bit_size: 1
  variants:
    - name: Pend
      description: Generates an interrupt request
      value: 1