block/IO_MUX:
  description: Input/Output Multiplexer.
  items:
  - name: PIN_CTRL
    description: Clock Output Configuration Register.
    byte_offset: 0
    fieldset: PIN_CTRL
  - name: GPIO
    description: IO MUX Configure Register for pad XTAL_32K_P.
    array:
      len: 22
      stride: 4
    byte_offset: 4
    fieldset: GPIO
  - name: DATE
    description: IO MUX Version Control Register.
    byte_offset: 252
    fieldset: DATE
fieldset/DATE:
  description: IO MUX Version Control Register.
  fields:
  - name: REG_DATE
    description: Version control register.
    bit_offset: 0
    bit_size: 28
fieldset/GPIO:
  description: IO MUX Configure Register for pad XTAL_32K_P.
  fields:
  - name: MCU_OE
    description: 'Output enable of the pad in sleep mode. 1: output enabled; 0: output disabled.'
    bit_offset: 0
    bit_size: 1
  - name: SLP_SEL
    description: Sleep mode selection of this pad. Set to 1 to put the pad in pad mode.
    bit_offset: 1
    bit_size: 1
  - name: MCU_WPD
    description: 'Pull-down enable of the pad in sleep mode. 1: internal pull-down enabled; 0: internal pull-down disabled.'
    bit_offset: 2
    bit_size: 1
  - name: MCU_WPU
    description: 'Pull-up enable of the pad during sleep mode. 1: internal pull-up enabled; 0: internal pull-up disabled.'
    bit_offset: 3
    bit_size: 1
  - name: MCU_IE
    description: 'Input enable of the pad during sleep mode. 1: input enabled; 0: input disabled.'
    bit_offset: 4
    bit_size: 1
  - name: FUN_WPD
    description: 'Pull-down enable of the pad. 1: internal pull-down enabled; 0: internal pull-down disabled.'
    bit_offset: 7
    bit_size: 1
  - name: FUN_WPU
    description: 'Pull-up enable of the pad. 1: internal pull-up enabled; 0: internal pull-up disabled.'
    bit_offset: 8
    bit_size: 1
  - name: FUN_IE
    description: 'Input enable of the pad. 1: input enabled; 0: input disabled.'
    bit_offset: 9
    bit_size: 1
  - name: FUN_DRV
    description: 'Select the drive strength of the pad. 0: ~5 mA; 1: ~10mA; 2: ~20mA; 3: ~40mA.'
    bit_offset: 10
    bit_size: 2
  - name: MCU_SEL
    description: 'Select IO MUX function for this signal. 0: Select Function 1; 1: Select Function 2; etc.'
    bit_offset: 12
    bit_size: 3
  - name: FILTER_EN
    description: 'Enable filter for pin input signals. 1: Filter enabled; 2: Filter disabled.'
    bit_offset: 15
    bit_size: 1
fieldset/PIN_CTRL:
  description: Clock Output Configuration Register.
  fields:
  - name: CLK_OUT1
    description: If you want to output clock for I2S to CLK_OUT_out1, set this register to 0x0. CLK_OUT_out1 can be found in peripheral output signals.
    bit_offset: 0
    bit_size: 4
  - name: CLK_OUT2
    description: If you want to output clock for I2S to CLK_OUT_out2, set this register to 0x0. CLK_OUT_out2 can be found in peripheral output signals.
    bit_offset: 4
    bit_size: 4
  - name: CLK_OUT3
    description: If you want to output clock for I2S to CLK_OUT_out3, set this register to 0x0. CLK_OUT_out3 can be found in peripheral output signals.
    bit_offset: 8
    bit_size: 4