Module config

I2S configuration

Structs

• Config
  I2S common channel configuration.
• PdmRxClkConfig
  Pulse density modulation (PDM) mode receive clock configuration for the I2S peripheral.
• PdmRxConfig
  Pulse density modulation (PDM) mode receive configuration for the I2S peripheral.
• PdmRxGpioConfig
  PDM mode GPIO (general purpose input/output) receive configuration.
• PdmRxSlotConfig
  PDM mode channel receive slot configuration.
• PdmTxClkConfig
  The I2s pulse density modulation (PDM) mode transmit clock configuration.
• PdmTxConfig
  The I2S pulse density modulation (PDM) mode transmit configuration for the I2S peripheral.
• PdmTxGpioConfig
  PDM mode GPIO (general purpose input/output) transmit configuration.
• PdmTxSlotConfig
  PDM mode channel transmit slot configuration.
• StdClkConfig
  Standard mode channel clock configuration.
• StdConfig
  Standard mode configuration for the I2S peripheral.
• StdGpioConfig
  Standard mode GPIO (general purpose input/output) configuration.
• StdSlotConfig
  Standard mode channel slot configuration.
• TdmClkConfig
  TDM mode channel clock configuration.
• TdmConfig
  Time-division multiplexing (TDM) mode configuration for the I2S peripheral.
• TdmGpioConfig
  TDM mode GPIO (general purpose input/output) configuration.
• TdmSlotConfig
  TDM mode slot configuration.
• TdmSlotMask
  Mask of TDM slots to enable.

Enums

• ClockSource
  I2S clock source.
• DataBitWidth
  Available data bit width in one slot.
• MclkMultiple
  The multiple of MCLK to the sample rate.
• PdmDownsample
  I2S pulse density modulation (PDM) downsampling mode.
• PdmSignalScale
  Pulse density modulation (PDM) transmit signal scaling mode.
• PdmSlotMask
  I2S slot selection in PDM mode.
• PdmTxLineMode
  I2S pulse density modulation (PDM) transmit line mode
• Role
  I2S channel operating role
• SlotBitWidth
  The total slot bit width in one slot.
• SlotMode
  I2S channel slot mode.
• StdCommFormat
  The communication format used by the v4 driver.
• StdSlotMask
  I2S slot selection in standard mode.
• TdmSlot
  An individual TDM slot.

Constants

• DEFAULT_DMA_BUFFER_COUNT
  The default number of DMA buffers to use.
• DEFAULT_FRAMES_PER_DMA_BUFFER
  The default number of frames per DMA buffer.
• SOC_I2S_PDM_MAX_TX_LINES
  The maximum number of data input pins that can be used in PDM mode.
• TDM_AUTO_SLOT_NUM
  Automatic total number of slots, equivalent to the maximum active slot number.
• TDM_AUTO_WS_WIDTH
  Automatic word-select signal width, equivalent to half the width of a frame.
• TDM_BCLK_DIV_MIN
  The minimum division from MCLK to BCLK.