stm32-data/data/registers/aes_v1.yaml

---
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: KEYR0
      description: Key register 0
      byte_offset: 16
      fieldset: KEYR0
    - name: KEYR1
      description: Key register 1
      byte_offset: 20
      fieldset: KEYR1
    - name: KEYR2
      description: Key register 2
      byte_offset: 24
      fieldset: KEYR2
    - name: KEYR3
      description: Key register 3
      byte_offset: 28
      fieldset: KEYR3
    - name: IVR0
      description: Initialization vector register 0
      byte_offset: 32
      fieldset: IVR0
    - name: IVR1
      description: Initialization vector register 1
      byte_offset: 36
      fieldset: IVR1
    - name: IVR2
      description: Initialization vector register 2
      byte_offset: 40
      fieldset: IVR2
    - name: IVR3
      description: Initialization vector register 3
      byte_offset: 44
      fieldset: IVR3
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/IVR0:
  description: AES initialization vector register 0
  fields:
    - name: IVI
      description: Initialization vector input, bits [31:0]
      bit_offset: 0
      bit_size: 32
fieldset/IVR1:
  description: AES initialization vector register 1
  fields:
    - name: IVI
      description: Initialization vector input, bits [63:32]
      bit_offset: 0
      bit_size: 32
fieldset/IVR2:
  description: AES initialization vector register 2
  fields:
    - name: IVI
      description: Initialization vector input, bits [95:64]
      bit_offset: 0
      bit_size: 32
fieldset/IVR3:
  description: AES initialization vector register 3
  fields:
    - name: IVI
      description: Initialization vector input, bits [127:96]
      bit_offset: 0
      bit_size: 32
fieldset/KEYR0:
  description: Key register 0
  fields:
    - name: KEY
      description: Cryptographic key, bits [31:0]
      bit_offset: 0
      bit_size: 32
fieldset/KEYR1:
  description: Key register 1
  fields:
    - name: KEY
      description: Cryptographic key, bits [63:32]
      bit_offset: 0
      bit_size: 32
fieldset/KEYR2:
  description: Key register 2
  fields:
    - name: KEY
      description: Cryptographic key, bits [95:64]
      bit_offset: 0
      bit_size: 32
fieldset/KEYR3:
  description: Key register 3
  fields:
    - name: KEY
      description: Cryptographic key, bits [127:96]
      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: "Mode 1: encryption"
      value: 0
    - name: Mode2
      description: "Mode 2: key derivation (or key preparation for ECB/CBC decryption)"
      value: 1
    - name: Mode3
      description: "Mode 3: decryption"
      value: 2
    - name: Mode4
      description: "Mode 4: key derivation then single decryption"
      value: 3