block/SCB:
  description: System control block.
  items:
  - name: CPUID
    description: CPUID base register.
    byte_offset: 0
    access: Read
    fieldset: CPUID
  - name: ICSR
    description: Interrupt control and state register.
    byte_offset: 4
    fieldset: ICSR
  - name: VTOR
    description: Vector table offset register.
    byte_offset: 8
    fieldset: VTOR
  - name: AIRCR
    description: Application interrupt and reset control register.
    byte_offset: 12
    fieldset: AIRCR
  - name: SCR
    description: System control register.
    byte_offset: 16
    fieldset: SCR
  - name: CCR
    description: Configuration and control register.
    byte_offset: 20
    fieldset: CCR
  - name: SHPR1
    description: System handler priority registers.
    byte_offset: 24
    fieldset: SHPR1
  - name: SHPR2
    description: System handler priority registers.
    byte_offset: 28
    fieldset: SHPR2
  - name: SHPR3
    description: System handler priority registers.
    byte_offset: 32
    fieldset: SHPR3
  - name: SHCRS
    description: System handler control and state register.
    byte_offset: 36
    fieldset: SHCRS
  - name: CFSR_UFSR_BFSR_MMFSR
    description: Configurable fault status register.
    byte_offset: 40
    fieldset: CFSR_UFSR_BFSR_MMFSR
  - name: HFSR
    description: Hard fault status register.
    byte_offset: 44
    fieldset: HFSR
  - name: MMFAR
    description: Memory management fault address register.
    byte_offset: 52
    fieldset: MMFAR
  - name: BFAR
    description: Bus fault address register.
    byte_offset: 56
    fieldset: BFAR
fieldset/AIRCR:
  description: Application interrupt and reset control register.
  fields:
  - name: VECTRESET
    description: VECTRESET.
    bit_offset: 0
    bit_size: 1
  - name: VECTCLRACTIVE
    description: VECTCLRACTIVE.
    bit_offset: 1
    bit_size: 1
  - name: SYSRESETREQ
    description: SYSRESETREQ.
    bit_offset: 2
    bit_size: 1
  - name: PRIGROUP
    description: PRIGROUP.
    bit_offset: 8
    bit_size: 3
  - name: ENDIANESS
    description: ENDIANESS.
    bit_offset: 15
    bit_size: 1
  - name: VECTKEYSTAT
    description: Register key.
    bit_offset: 16
    bit_size: 16
fieldset/BFAR:
  description: Bus fault address register.
  fields:
  - name: BFAR
    description: Bus fault address.
    bit_offset: 0
    bit_size: 32
fieldset/CCR:
  description: Configuration and control register.
  fields:
  - name: NONBASETHRDENA
    description: Configures how the processor enters Thread mode.
    bit_offset: 0
    bit_size: 1
  - name: USERSETMPEND
    description: USERSETMPEND.
    bit_offset: 1
    bit_size: 1
  - name: UNALIGN__TRP
    description: UNALIGN_ TRP.
    bit_offset: 3
    bit_size: 1
  - name: DIV_0_TRP
    description: DIV_0_TRP.
    bit_offset: 4
    bit_size: 1
  - name: BFHFNMIGN
    description: BFHFNMIGN.
    bit_offset: 8
    bit_size: 1
  - name: STKALIGN
    description: STKALIGN.
    bit_offset: 9
    bit_size: 1
fieldset/CFSR_UFSR_BFSR_MMFSR:
  description: Configurable fault status register.
  fields:
  - name: IACCVIOL
    description: IACCVIOL.
    bit_offset: 0
    bit_size: 1
  - name: DACCVIOL
    description: DACCVIOL.
    bit_offset: 1
    bit_size: 1
  - name: MUNSTKERR
    description: MUNSTKERR.
    bit_offset: 3
    bit_size: 1
  - name: MSTKERR
    description: MSTKERR.
    bit_offset: 4
    bit_size: 1
  - name: MLSPERR
    description: MLSPERR.
    bit_offset: 5
    bit_size: 1
  - name: MMARVALID
    description: MMARVALID.
    bit_offset: 7
    bit_size: 1
  - name: IBUSERR
    description: Instruction bus error.
    bit_offset: 8
    bit_size: 1
  - name: PRECISERR
    description: Precise data bus error.
    bit_offset: 9
    bit_size: 1
  - name: IMPRECISERR
    description: Imprecise data bus error.
    bit_offset: 10
    bit_size: 1
  - name: UNSTKERR
    description: Bus fault on unstacking for a return from exception.
    bit_offset: 11
    bit_size: 1
  - name: STKERR
    description: Bus fault on stacking for exception entry.
    bit_offset: 12
    bit_size: 1
  - name: LSPERR
    description: Bus fault on floating-point lazy state preservation.
    bit_offset: 13
    bit_size: 1
  - name: BFARVALID
    description: Bus Fault Address Register (BFAR) valid flag.
    bit_offset: 15
    bit_size: 1
  - name: UNDEFINSTR
    description: Undefined instruction usage fault.
    bit_offset: 16
    bit_size: 1
  - name: INVSTATE
    description: Invalid state usage fault.
    bit_offset: 17
    bit_size: 1
  - name: INVPC
    description: Invalid PC load usage fault.
    bit_offset: 18
    bit_size: 1
  - name: NOCP
    description: No coprocessor usage fault.
    bit_offset: 19
    bit_size: 1
  - name: UNALIGNED
    description: Unaligned access usage fault.
    bit_offset: 24
    bit_size: 1
  - name: DIVBYZERO
    description: Divide by zero usage fault.
    bit_offset: 25
    bit_size: 1
fieldset/CPUID:
  description: CPUID base register.
  fields:
  - name: Revision
    description: Revision number.
    bit_offset: 0
    bit_size: 4
  - name: PartNo
    description: Part number of the processor.
    bit_offset: 4
    bit_size: 12
  - name: Constant
    description: Reads as 0xF.
    bit_offset: 16
    bit_size: 4
  - name: Variant
    description: Variant number.
    bit_offset: 20
    bit_size: 4
  - name: Implementer
    description: Implementer code.
    bit_offset: 24
    bit_size: 8
fieldset/HFSR:
  description: Hard fault status register.
  fields:
  - name: VECTTBL
    description: Vector table hard fault.
    bit_offset: 1
    bit_size: 1
  - name: FORCED
    description: Forced hard fault.
    bit_offset: 30
    bit_size: 1
  - name: DEBUG_VT
    description: Reserved for Debug use.
    bit_offset: 31
    bit_size: 1
fieldset/ICSR:
  description: Interrupt control and state register.
  fields:
  - name: VECTACTIVE
    description: Active vector.
    bit_offset: 0
    bit_size: 9
  - name: RETTOBASE
    description: Return to base level.
    bit_offset: 11
    bit_size: 1
  - name: VECTPENDING
    description: Pending vector.
    bit_offset: 12
    bit_size: 7
  - name: ISRPENDING
    description: Interrupt pending flag.
    bit_offset: 22
    bit_size: 1
  - name: PENDSTCLR
    description: SysTick exception clear-pending bit.
    bit_offset: 25
    bit_size: 1
  - name: PENDSTSET
    description: SysTick exception set-pending bit.
    bit_offset: 26
    bit_size: 1
  - name: PENDSVCLR
    description: PendSV clear-pending bit.
    bit_offset: 27
    bit_size: 1
  - name: PENDSVSET
    description: PendSV set-pending bit.
    bit_offset: 28
    bit_size: 1
  - name: NMIPENDSET
    description: NMI set-pending bit.
    bit_offset: 31
    bit_size: 1
fieldset/MMFAR:
  description: Memory management fault address register.
  fields:
  - name: MMFAR
    description: Memory management fault address.
    bit_offset: 0
    bit_size: 32
fieldset/SCR:
  description: System control register.
  fields:
  - name: SLEEPONEXIT
    description: SLEEPONEXIT.
    bit_offset: 1
    bit_size: 1
  - name: SLEEPDEEP
    description: SLEEPDEEP.
    bit_offset: 2
    bit_size: 1
  - name: SEVEONPEND
    description: Send Event on Pending bit.
    bit_offset: 4
    bit_size: 1
fieldset/SHCRS:
  description: System handler control and state register.
  fields:
  - name: MEMFAULTACT
    description: Memory management fault exception active bit.
    bit_offset: 0
    bit_size: 1
  - name: BUSFAULTACT
    description: Bus fault exception active bit.
    bit_offset: 1
    bit_size: 1
  - name: USGFAULTACT
    description: Usage fault exception active bit.
    bit_offset: 3
    bit_size: 1
  - name: SVCALLACT
    description: SVC call active bit.
    bit_offset: 7
    bit_size: 1
  - name: MONITORACT
    description: Debug monitor active bit.
    bit_offset: 8
    bit_size: 1
  - name: PENDSVACT
    description: PendSV exception active bit.
    bit_offset: 10
    bit_size: 1
  - name: SYSTICKACT
    description: SysTick exception active bit.
    bit_offset: 11
    bit_size: 1
  - name: USGFAULTPENDED
    description: Usage fault exception pending bit.
    bit_offset: 12
    bit_size: 1
  - name: MEMFAULTPENDED
    description: Memory management fault exception pending bit.
    bit_offset: 13
    bit_size: 1
  - name: BUSFAULTPENDED
    description: Bus fault exception pending bit.
    bit_offset: 14
    bit_size: 1
  - name: SVCALLPENDED
    description: SVC call pending bit.
    bit_offset: 15
    bit_size: 1
  - name: MEMFAULTENA
    description: Memory management fault enable bit.
    bit_offset: 16
    bit_size: 1
  - name: BUSFAULTENA
    description: Bus fault enable bit.
    bit_offset: 17
    bit_size: 1
  - name: USGFAULTENA
    description: Usage fault enable bit.
    bit_offset: 18
    bit_size: 1
fieldset/SHPR1:
  description: System handler priority registers.
  fields:
  - name: PRI_4
    description: Priority of system handler 4.
    bit_offset: 0
    bit_size: 8
  - name: PRI_5
    description: Priority of system handler 5.
    bit_offset: 8
    bit_size: 8
  - name: PRI_6
    description: Priority of system handler 6.
    bit_offset: 16
    bit_size: 8
fieldset/SHPR2:
  description: System handler priority registers.
  fields:
  - name: PRI_11
    description: Priority of system handler 11.
    bit_offset: 24
    bit_size: 8
fieldset/SHPR3:
  description: System handler priority registers.
  fields:
  - name: PRI_14
    description: Priority of system handler 14.
    bit_offset: 16
    bit_size: 8
  - name: PRI_15
    description: Priority of system handler 15.
    bit_offset: 24
    bit_size: 8
fieldset/VTOR:
  description: Vector table offset register.
  fields:
  - name: TBLOFF
    description: Vector table base offset field.
    bit_offset: 9
    bit_size: 21