block/CORDIC:
  description: CORDIC co-processor.
  items:
  - name: CSR
    description: Control and status register.
    byte_offset: 0
    fieldset: CSR
  - name: WDATA
    description: Argument register.
    byte_offset: 4
  - name: RDATA
    description: Result register.
    byte_offset: 8
fieldset/CSR:
  description: Control and status register.
  fields:
  - name: FUNC
    description: Function.
    bit_offset: 0
    bit_size: 4
    enum: FUNC
  - name: PRECISION
    description: Precision required (number of iterations/cycles), where PRECISION = (number of iterations/4).
    bit_offset: 4
    bit_size: 4
    enum: PRECISION
  - name: SCALE
    description: Scaling factor (2^-n for arguments, 2^n for results).
    bit_offset: 8
    bit_size: 3
  - name: IEN
    description: Enable interrupt.
    bit_offset: 16
    bit_size: 1
  - name: DMAREN
    description: Enable DMA wread channel.
    bit_offset: 17
    bit_size: 1
  - name: DMAWEN
    description: Enable DMA write channel.
    bit_offset: 18
    bit_size: 1
  - name: NRES
    description: Number of results in the RDATA register.
    bit_offset: 19
    bit_size: 1
    enum: Num
  - name: NARGS
    description: Number of arguments expected by the WDATA register.
    bit_offset: 20
    bit_size: 1
    enum: Num
  - name: RESSIZE
    description: Width of output data.
    bit_offset: 21
    bit_size: 1
    enum: Size
  - name: ARGSIZE
    description: Width of input data.
    bit_offset: 22
    bit_size: 1
    enum: Size
  - name: RRDY
    description: Result ready flag.
    bit_offset: 31
    bit_size: 1
enum/FUNC:
  bit_size: 4
  variants:
  - name: Cosine
    description: Cosine function.
    value: 0
  - name: Sine
    description: Sine function.
    value: 1
  - name: Phase
    description: Phase function.
    value: 2
  - name: Modulus
    description: Modulus function.
    value: 3
  - name: Arctangent
    description: Arctangent function.
    value: 4
  - name: HyperbolicCosine
    description: Hyperbolic Cosine function.
    value: 5
  - name: HyperbolicSine
    description: Hyperbolic Sine function.
    value: 6
  - name: Arctanh
    description: Arctanh function.
    value: 7
  - name: NaturalLogarithm
    description: Natural Logarithm function.
    value: 8
  - name: SquareRoot
    description: Square Root function.
    value: 9
enum/Num:
  bit_size: 1
  variants:
  - name: Num1
    description: Only single argument write is needed for next calculation.
    value: 0
  - name: Num2
    description: Two argument writes need to be performed for next calculation.
    value: 1
enum/PRECISION:
  bit_size: 4
  variants:
  - name: Iters4
    description: 4 iterations.
    value: 1
  - name: Iters8
    description: 8 iterations.
    value: 2
  - name: Iters12
    description: 12 iterations.
    value: 3
  - name: Iters16
    description: 16 iterations.
    value: 4
  - name: Iters20
    description: 20 iterations.
    value: 5
  - name: Iters24
    description: 24 iterations.
    value: 6
  - name: Iters28
    description: 28 iterations.
    value: 7
  - name: Iters32
    description: 32 iterations.
    value: 8
  - name: Iters36
    description: 36 iterations.
    value: 9
  - name: Iters40
    description: 40 iterations.
    value: 10
  - name: Iters44
    description: 44 iterations.
    value: 11
  - name: Iters48
    description: 48 iterations.
    value: 12
  - name: Iters52
    description: 52 iterations.
    value: 13
  - name: Iters56
    description: 56 iterations.
    value: 14
  - name: Iters60
    description: 60 iterations.
    value: 15
enum/Size:
  bit_size: 1
  variants:
  - name: Bits32
    description: Use 32 bit output values.
    value: 0
  - name: Bits16
    description: Use 16 bit output values.
    value: 1