block/AES:
  description: Advanced encryption standard hardware accelerator
  items:
  - name: CR
    description: Control register
    byte_offset: 0
    fieldset: CR
  - name: SR
    description: Status register
    byte_offset: 4
    fieldset: SR
  - name: DINR
    description: Data input register
    byte_offset: 8
    fieldset: DINR
  - name: DOUTR
    description: Data output register
    byte_offset: 12
    fieldset: DOUTR
  - name: KEYR
    description: Key register
    array:
      len: 4
      stride: 4
    byte_offset: 16
    fieldset: KEYR
  - name: IVR
    description: Initialization vector register
    array:
      len: 4
      stride: 4
    byte_offset: 32
    fieldset: IVR
fieldset/CR:
  description: Control register
  fields:
  - name: EN
    description: AES enable
    bit_offset: 0
    bit_size: 1
  - name: DATATYPE
    description: Data type selection
    bit_offset: 1
    bit_size: 2
    enum: DATATYPE
  - name: MODE
    description: Operating mode
    bit_offset: 3
    bit_size: 2
    enum: MODE
  - name: CHMOD10
    description: Chaining mode bit1 bit0
    bit_offset: 5
    bit_size: 2
  - name: CCFC
    description: Computation Complete Flag Clear
    bit_offset: 7
    bit_size: 1
  - name: ERRC
    description: Error clear
    bit_offset: 8
    bit_size: 1
  - name: CCFIE
    description: CCF flag interrupt enable
    bit_offset: 9
    bit_size: 1
  - name: ERRIE
    description: Error interrupt enable
    bit_offset: 10
    bit_size: 1
  - name: DMAINEN
    description: Enable DMA management of data input phase
    bit_offset: 11
    bit_size: 1
  - name: DMAOUTEN
    description: Enable DMA management of data output phase
    bit_offset: 12
    bit_size: 1
fieldset/DINR:
  description: Data input register
  fields:
  - name: DIN
    description: Input data word
    bit_offset: 0
    bit_size: 32
fieldset/DOUTR:
  description: Data output register
  fields:
  - name: DOUT
    description: Output data word
    bit_offset: 0
    bit_size: 32
fieldset/IVR:
  description: Initialization vector register
  fields:
  - name: IVI
    description: Initialization vector input
    bit_offset: 0
    bit_size: 32
fieldset/KEYR:
  description: Key register
  fields:
  - name: KEY
    description: Cryptographic key
    bit_offset: 0
    bit_size: 32
fieldset/SR:
  description: Status register
  fields:
  - name: CCF
    description: Computation complete flag
    bit_offset: 0
    bit_size: 1
  - name: RDERR
    description: Read error flag
    bit_offset: 1
    bit_size: 1
  - name: WRERR
    description: Write error flag
    bit_offset: 2
    bit_size: 1
enum/DATATYPE:
  bit_size: 2
  variants:
  - name: None
    description: Word
    value: 0
  - name: HalfWord
    description: Half-word (16-bit)
    value: 1
  - name: Byte
    description: Byte (8-bit)
    value: 2
  - name: Bit
    description: Bit
    value: 3
enum/MODE:
  bit_size: 2
  variants:
  - name: Mode1
    description: Encryption
    value: 0
  - name: Mode2
    description: Key derivation (or key preparation for ECB/CBC decryption)
    value: 1
  - name: Mode3
    description: Decryption
    value: 2
  - name: Mode4
    description: Key derivation then single decryption
    value: 3