---
block/EXTI:
  description: External interrupt/event controller
  items:
    - name: RTSR
      description: rising trigger selection register
      byte_offset: 0
      fieldset: RTSR
      array:
        len: 2
        stride: 32
    - name: FTSR
      description: falling trigger selection register
      byte_offset: 4
      fieldset: FTSR
      array:
        len: 2
        stride: 32
    - name: SWIER
      description: software interrupt event register
      byte_offset: 8
      fieldset: SWIER
      array:
        len: 2
        stride: 32
    - name: PR
      description: EXTI pending register
      byte_offset: 12
      fieldset: PR
      array:
        len: 2
        stride: 32
    - name: CPU
      description: CPU specific registers
      byte_offset: 128
      block: CPU_MASK
      array:
        len: 2
        stride: 64
block/CPU_MASK:
  description: CPU-specific mask registers
  items:
    - name: IMR
      description: CPUm wakeup with interrupt mask register
      byte_offset: 0
      fieldset: C1IMR
      array:
        len: 2
        stride: 16
    - name: EMR
      description: CPUm wakeup with event mask register
      byte_offset: 4
      fieldset: C1EMR
      array:
        len: 2
        stride: 16
fieldset/C1EMR:
  description: CPUm wakeup with event mask register
  fields:
    - name: EM
      description: CPU(m) Wakeup with event generation Mask on Event input
      bit_offset: 0
      bit_size: 16
      array:
        len: 32
        stride: 1
fieldset/C1IMR:
  description: CPUm wakeup with interrupt mask register
  fields:
    - name: IM
      description: CPU(m) wakeup with interrupt Mask on Event input
      bit_offset: 0
      bit_size: 1
      array:
        len: 32
        stride: 1
      enum: MR
fieldset/FTSR:
  description: falling trigger selection register
  fields:
    - name: FT
      description: Falling trigger event configuration bit of Configurable Event input
      bit_offset: 0
      bit_size: 1
      array:
        len: 32
        stride: 1
      enum: FT
fieldset/PR:
  description: EXTI pending register
  fields:
    - name: PIF
      description: Configurable event inputs Pending bit
      bit_offset: 0
      bit_size: 1
      array:
        len: 32
        stride: 1
      enum_read: PRR
      enum_write: PRW
fieldset/RTSR:
  description: rising trigger selection register
  fields:
    - name: RT
      description: Rising trigger event configuration bit of Configurable Event input
      bit_offset: 0
      bit_size: 1
      array:
        len: 32
        stride: 1
      enum: RT
fieldset/SWIER:
  description: software interrupt event register
  fields:
    - name: SWI
      description: Software interrupt on event
      bit_offset: 0
      bit_size: 1
      array:
        len: 32
        stride: 1
fieldset/VERR:
  description: EXTI IP Version register
  fields:
    - name: MINREV
      description: Minor Revision number
      bit_offset: 0
      bit_size: 4
    - name: MAJREV
      description: Major Revision number
      bit_offset: 4
      bit_size: 4
enum/FT:
  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/RT:
  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/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/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