block/CRC:
  description: Cyclic redundancy check calculation unit.
  items:
  - name: DR
    description: Data register.
    byte_offset: 0
    fieldset: DR
  - name: DR16
    description: Data register - half-word sized.
    byte_offset: 0
    bit_size: 16
    fieldset: DR16
  - name: DR8
    description: Data register - byte sized.
    byte_offset: 0
    bit_size: 8
    fieldset: DR8
  - name: IDR
    description: Independent data register.
    byte_offset: 4
    fieldset: IDR
  - name: CR
    description: Control register.
    byte_offset: 8
    fieldset: CR
  - name: INIT
    description: Initial CRC value.
    byte_offset: 16
    fieldset: INIT
  - name: POL
    description: polynomial.
    byte_offset: 20
    fieldset: POL
fieldset/CR:
  description: Control register.
  fields:
  - name: RESET
    description: RESET bit.
    bit_offset: 0
    bit_size: 1
    enum: RESET
  - name: POLYSIZE
    description: Polynomial size.
    bit_offset: 3
    bit_size: 2
    enum: POLYSIZE
  - name: REV_IN
    description: Reverse input data.
    bit_offset: 5
    bit_size: 2
    enum: REV_IN
  - name: REV_OUT
    description: Reverse output data.
    bit_offset: 7
    bit_size: 1
    enum: REV_OUT
fieldset/DR:
  description: Data register.
  fields:
  - name: DR
    description: Data register bits.
    bit_offset: 0
    bit_size: 32
fieldset/DR16:
  description: Data register - half-word sized.
  bit_size: 16
  fields:
  - name: DR16
    description: Data register bits.
    bit_offset: 0
    bit_size: 16
fieldset/DR8:
  description: Data register - byte sized.
  bit_size: 8
  fields:
  - name: DR8
    description: Data register bits.
    bit_offset: 0
    bit_size: 8
fieldset/IDR:
  description: Independent data register.
  fields:
  - name: IDR
    description: General-purpose 32-bit data register bits.
    bit_offset: 0
    bit_size: 32
fieldset/INIT:
  description: Initial CRC value.
  fields:
  - name: INIT
    description: Programmable initial CRC value.
    bit_offset: 0
    bit_size: 32
fieldset/POL:
  description: polynomial.
  fields:
  - name: POL
    description: Programmable polynomial.
    bit_offset: 0
    bit_size: 32
enum/POLYSIZE:
  bit_size: 2
  variants:
  - name: Polysize32
    description: 32-bit polynomial.
    value: 0
  - name: Polysize16
    description: 16-bit polynomial.
    value: 1
  - name: Polysize8
    description: 8-bit polynomial.
    value: 2
  - name: Polysize7
    description: 7-bit polynomial.
    value: 3
enum/RESET:
  bit_size: 1
  variants:
  - name: Reset
    description: Resets the CRC calculation unit and sets the data register to 0xFFFF FFFF.
    value: 1
enum/REV_IN:
  bit_size: 2
  variants:
  - name: Normal
    description: Bit order not affected.
    value: 0
  - name: Byte
    description: Bit reversal done by byte.
    value: 1
  - name: HalfWord
    description: Bit reversal done by half-word.
    value: 2
  - name: Word
    description: Bit reversal done by word.
    value: 3
enum/REV_OUT:
  bit_size: 1
  variants:
  - name: Normal
    description: Bit order not affected.
    value: 0
  - name: Reversed
    description: Bit reversed output.
    value: 1