pdm_io_cfg Struct Reference

PDM Input/Output signal configuration. More...

#include <dmic.h>

Data Fields
Parameters common to all PDM controllers
uint32_t	min_pdm_clk_freq
	Minimum clock frequency supported by the mic.
uint32_t	max_pdm_clk_freq
	Maximum clock frequency supported by the mic.
uint8_t	min_pdm_clk_dc
	Minimum duty cycle in % supported by the mic.
uint8_t	max_pdm_clk_dc
	Maximum duty cycle in % supported by the mic.
Parameters unique to each PDM controller
uint8_t	pdm_clk_pol
	Bit mask to optionally invert PDM clock.
uint8_t	pdm_data_pol
	Bit mask to optionally invert mic data.
uint32_t	pdm_clk_skew
	Collection of clock skew values for each PDM port.

Detailed Description

PDM Input/Output signal configuration.

Field Documentation

max_pdm_clk_dc

uint8_t pdm_io_cfg::max_pdm_clk_dc

Maximum duty cycle in % supported by the mic.

max_pdm_clk_freq

uint32_t pdm_io_cfg::max_pdm_clk_freq

Maximum clock frequency supported by the mic.

min_pdm_clk_dc

uint8_t pdm_io_cfg::min_pdm_clk_dc

Minimum duty cycle in % supported by the mic.

min_pdm_clk_freq

uint32_t pdm_io_cfg::min_pdm_clk_freq

Minimum clock frequency supported by the mic.

pdm_clk_pol

uint8_t pdm_io_cfg::pdm_clk_pol

Bit mask to optionally invert PDM clock.

pdm_clk_skew

uint32_t pdm_io_cfg::pdm_clk_skew

Collection of clock skew values for each PDM port.

pdm_data_pol

uint8_t pdm_io_cfg::pdm_data_pol

Bit mask to optionally invert mic data.

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The documentation for this struct was generated from the following file:

• include/zephyr/audio/dmic.h