block/VREFBUF:
  description: Voltage reference buffer.
  items:
  - name: CSR
    description: VREF_BUF Control and Status Register.
    byte_offset: 0
    fieldset: CSR
  - name: CCR
    description: VREF_BUF Calibration Control Register.
    byte_offset: 4
    fieldset: CCR
fieldset/CCR:
  description: VREF_BUF Calibration Control Register.
  fields:
  - name: TRIM
    description: Trimming code.
    bit_offset: 0
    bit_size: 6
fieldset/CSR:
  description: VREF_BUF Control and Status Register.
  fields:
  - name: ENVR
    description: Enable Voltage Reference.
    bit_offset: 0
    bit_size: 1
  - name: HIZ
    description: High impedence mode for the VREF_BUF.
    bit_offset: 1
    bit_size: 1
  - name: VRR
    description: Voltage reference buffer ready.
    bit_offset: 3
    bit_size: 1
  - name: VRS
    description: Voltage reference scale.
    bit_offset: 4
    bit_size: 2