Functions

General Description

Functions
cy_en_mixer_status_t	Cy_Mixer_SourceInit (volatile MIXER_SRC_STRUCT_Type *base, cy_stc_mixer_src_config_t const *config)
	Initializes the Mixer source structure. More...
void	Cy_Mixer_SourceDeInit (volatile MIXER_SRC_STRUCT_Type *base)
	Deinitialize the Mixer source structure. More...
cy_en_mixer_status_t	Cy_Mixer_DestinationInit (volatile MIXER_DST_STRUCT_Type *base, cy_stc_mixer_dst_config_t const *config)
	Initializes the Mixer destination structure. More...
void	Cy_Mixer_DestinationDeInit (volatile MIXER_DST_STRUCT_Type *base)
	DeInitializes the Mixer destination structure. More...
void	Cy_Mixer_SourceStartFadeIn (volatile MIXER_SRC_STRUCT_Type *base, uint16_t pace)
	triggers source fade in. More...
bool	Cy_Mixer_SourceHasFadeInCompleted (volatile MIXER_SRC_STRUCT_Type *base)
	checks previous fade in operation already completed or not More...
void	Cy_Mixer_SourceStartFadeOut (volatile MIXER_SRC_STRUCT_Type *base, uint16_t pace, bool deact)
	triggers fade out More...
bool	Cy_Mixer_SourceHasFadeOutCompleted (volatile MIXER_SRC_STRUCT_Type *base)
	checks previous fade out operation already completed or not More...
void	Cy_Mixer_DestinationStartFadeIn (volatile MIXER_DST_STRUCT_Type *base, uint16_t pace)
	triggers destination fade in. More...
bool	Cy_Mixer_DestinationHasFadeInCompleted (volatile MIXER_DST_STRUCT_Type *base)
	checks previous fade in operation already completed or not More...
void	Cy_Mixer_DestinationStartFadeOut (volatile MIXER_DST_STRUCT_Type *base, uint16_t pace, bool deact)
	triggers fade out More...
bool	Cy_Mixer_DestinationHasFadeOutCompleted (volatile MIXER_DST_STRUCT_Type *base)
	checks previous fade out operation already completed or not More...
__STATIC_INLINE void	Cy_Mixer_Src_SampleFreqRatio (volatile MIXER_SRC_STRUCT_Type *base, cy_en_mixer_src_fs_ratio_t fsRatio)
	Set the source sample frequency upscale ratio. More...
__STATIC_INLINE void	Cy_Mixer_Src_ChannelSelect (volatile MIXER_SRC_STRUCT_Type *base, cy_en_mixer_channel_t channel, cy_en_mixer_src_data_t data)
	Channel selection, specifies selection of the channel's 16-bit PCM data from source FIFO data[31:0]. More...
__STATIC_INLINE void	Cy_Mixer_Src_Enable (volatile MIXER_SRC_STRUCT_Type *base)
	Mixer source enable. More...
__STATIC_INLINE void	Cy_Mixer_Src_Disable (volatile MIXER_SRC_STRUCT_Type *base)
	Mixer source disable. More...
__STATIC_INLINE uint8_t	Cy_Mixer_Src_GetCurrentPhase (volatile MIXER_SRC_STRUCT_Type *base)
	Get the current FIR phase value. More...
__STATIC_INLINE void	Cy_Mixer_Src_FadeControl (volatile MIXER_SRC_STRUCT_Type *base, cy_en_mixer_fade_code_t fadeCode)
	Set the source fade control (Gain code in the range [0, 115]) More...
__STATIC_INLINE uint16_t	Cy_Mixer_Src_GetCurrentPace (volatile MIXER_SRC_STRUCT_Type *base)
	Get the current source fading pace counter value. More...
__STATIC_INLINE void	Cy_Mixer_Src_FadeInEnable (volatile MIXER_SRC_STRUCT_Type *base)
	Mixer source fade in enable (SW sets this field to '1' to start "fade in" functionality. More...
__STATIC_INLINE void	Cy_Mixer_Src_FadeInDisable (volatile MIXER_SRC_STRUCT_Type *base)
	Mixer source fade in disable. More...
__STATIC_INLINE void	Cy_Mixer_Src_FadeOutEnable (volatile MIXER_SRC_STRUCT_Type *base)
	Mixer source fade out enable. More...
__STATIC_INLINE void	Cy_Mixer_Src_FadeOutDisable (volatile MIXER_SRC_STRUCT_Type *base)
	Mixer source fade out disable. More...
__STATIC_INLINE void	Cy_Mixer_Src_AutoFadeActivate (volatile MIXER_SRC_STRUCT_Type *base)
	Configures the mixer source to NOT deactivate when "fade out" completes. More...
__STATIC_INLINE void	Cy_Mixer_Src_AutoFadeDeactivate (volatile MIXER_SRC_STRUCT_Type *base)
	Configures the mixer source to automatically deactivate when "fade out" completes. More...
__STATIC_INLINE void	Cy_Mixer_Src_FadePaceSelect (volatile MIXER_SRC_STRUCT_Type *base, uint16_t pace)
	Specifies the pace/speed of source "fade in" and "fade out". More...
__STATIC_INLINE void	Cy_Mixer_Src_GainCodeSelect (volatile MIXER_SRC_STRUCT_Type *base, uint8_t code)
	Set the source gain code in the range [0, 127]. More...
__STATIC_INLINE void	Cy_Mixer_Src_FifoTriggerLevel (volatile MIXER_SRC_STRUCT_Type *base, uint8_t level)
	Set the source FIFO trigger level. More...
__STATIC_INLINE void	Cy_Mixer_Src_Mute (volatile MIXER_SRC_STRUCT_Type *base)
	Mute the mixer source. More...
__STATIC_INLINE void	Cy_Mixer_Src_Unmute (volatile MIXER_SRC_STRUCT_Type *base)
	Unmute the mixer source. More...
__STATIC_INLINE void	Cy_Mixer_Src_Activate (volatile MIXER_SRC_STRUCT_Type *base)
	Activate the mixer source. More...
__STATIC_INLINE void	Cy_Mixer_Src_Deactivate (volatile MIXER_SRC_STRUCT_Type *base)
	Deactivate the mixer source. More...
__STATIC_INLINE uint8_t	Cy_Mixer_Src_GetUsedFifoEntries (volatile MIXER_SRC_STRUCT_Type *base)
	Get the number of used/occupied entries in the source FIFO. More...
__STATIC_INLINE uint8_t	Cy_Mixer_Src_GetFifoReadPtr (volatile MIXER_SRC_STRUCT_Type *base)
	Get the source FIFO read pointer (Source FIFO location from which a data is read). More...
__STATIC_INLINE uint8_t	Cy_Mixer_Src_GetFifoWritePtr (volatile MIXER_SRC_STRUCT_Type *base)
	Get the source FIFO write pointer (Source FIFO location at which new data is written by the hardware). More...
__STATIC_INLINE void	Cy_Mixer_Src_FifoWriteData (volatile MIXER_SRC_STRUCT_Type *base, uint32_t data)
	Data (PCM sample pair of two 16-bit samples) written to the top source FIFO entry (data[31:0] = DATA[31:0]). More...
__STATIC_INLINE void	Cy_Mixer_Src_ClearInterrupt (volatile MIXER_SRC_STRUCT_Type *base, cy_en_mixer_src_interrupt_t intSrc)
	Source interrupt clear (HW sets and SW clears) More...
__STATIC_INLINE void	Cy_Mixer_Src_SetInterrupt (volatile MIXER_SRC_STRUCT_Type *base, cy_en_mixer_src_interrupt_t intSrc)
	Source interrupt set (Write this field with '1' to set corresponding INTR_SRC field) More...
__STATIC_INLINE void	Cy_Mixer_Src_ClearInterruptMask (volatile MIXER_SRC_STRUCT_Type *base, cy_en_mixer_src_interrupt_t intSrc)
	Source interrupt clear Mask for corresponding field in INTR_SRC register. More...
__STATIC_INLINE void	Cy_Mixer_Src_SetInterruptMask (volatile MIXER_SRC_STRUCT_Type *base, cy_en_mixer_src_interrupt_t intSrc)
	Source interrupt set Mask for corresponding field in INTR_SRC register. More...
__STATIC_INLINE bool	Cy_Mixer_Src_IsInterruptActive (volatile MIXER_SRC_STRUCT_Type *base, cy_en_mixer_src_interrupt_t intSrc)
	Get source interrupt active state. More...
__STATIC_INLINE void	Cy_Mixer_Dst_Enable (volatile MIXER_DST_STRUCT_Type *base)
	Mixer destination enable. More...
__STATIC_INLINE void	Cy_Mixer_Dst_Disable (volatile MIXER_DST_STRUCT_Type *base)
	Mixer destination disable. More...
__STATIC_INLINE void	Cy_Mixer_Dst_FadeControl (volatile MIXER_DST_STRUCT_Type *base, cy_en_mixer_fade_code_t fadeCode)
	Set the destination fade control (Gain code in the range [0, 115]) More...
__STATIC_INLINE uint16_t	Cy_Mixer_Dst_GetCurrentPace (volatile MIXER_DST_STRUCT_Type *base)
	Get the Destination fading pace counter value. More...
__STATIC_INLINE void	Cy_Mixer_Dst_FadeInEnable (volatile MIXER_DST_STRUCT_Type *base)
	Mixer destination fade in enable. More...
__STATIC_INLINE void	Cy_Mixer_Dst_FadeInDisable (volatile MIXER_DST_STRUCT_Type *base)
	Mixer destination fade in disable. More...
__STATIC_INLINE void	Cy_Mixer_Dst_FadeOutEnable (volatile MIXER_DST_STRUCT_Type *base)
	Mixer destination fade out enable. More...
__STATIC_INLINE void	Cy_Mixer_Dst_FadeOutDisable (volatile MIXER_DST_STRUCT_Type *base)
	Mixer destination fade out disable. More...
__STATIC_INLINE void	Cy_Mixer_Dst_AutoFadeActivate (volatile MIXER_DST_STRUCT_Type *base)
	Configures the mixer destination to NOT deactivate when "fade out" completes. More...
__STATIC_INLINE void	Cy_Mixer_Dst_AutoFadeDeactivate (volatile MIXER_DST_STRUCT_Type *base)
	Configures the mixer destination to automatically deactivate when "fade out" completes. More...
__STATIC_INLINE void	Cy_Mixer_Dst_FadePaceSelect (volatile MIXER_DST_STRUCT_Type *base, uint16_t pace)
	Destination fade pace select (Specifies the pace/speed of "fade in" and "fade out") More...
__STATIC_INLINE void	Cy_Mixer_Dst_GainCodeSelect (volatile MIXER_DST_STRUCT_Type *base, uint8_t code)
	Set the destination gain code in the range [0, 127]. More...
__STATIC_INLINE void	Cy_Mixer_Dst_FifoTriggerLevel (volatile MIXER_DST_STRUCT_Type *base, uint8_t level)
	Destination FIFO trigger level. More...
__STATIC_INLINE void	Cy_Mixer_Dst_Mute (volatile MIXER_DST_STRUCT_Type *base)
	Mixer destination mute. More...
__STATIC_INLINE void	Cy_Mixer_Dst_Unmute (volatile MIXER_DST_STRUCT_Type *base)
	Mixer destination unmute. More...
__STATIC_INLINE void	Cy_Mixer_Dst_Activate (volatile MIXER_DST_STRUCT_Type *base)
	Activate the mixer destination. More...
__STATIC_INLINE void	Cy_Mixer_Dst_Deactivate (volatile MIXER_DST_STRUCT_Type *base)
	Deactivate the mixer destination. More...
__STATIC_INLINE uint8_t	Cy_Mixer_Dst_GetUsedFifoEntries (volatile MIXER_DST_STRUCT_Type *base)
	Number of used/occupied entries in the destination FIFO. More...
__STATIC_INLINE uint8_t	Cy_Mixer_Dst_GetFifoReadPtr (volatile MIXER_DST_STRUCT_Type *base)
	Get the destination FIFO read pointer (Destination FIFO location from which a data is read). More...
__STATIC_INLINE uint8_t	Cy_Mixer_Dst_GetFifoWritePtr (volatile MIXER_DST_STRUCT_Type *base)
	Get the destination FIFO write pointer (Destination FIFO location at which new data is written by the hardware). More...
__STATIC_INLINE uint32_t	Cy_Mixer_Dst_FifoReadData (volatile MIXER_DST_STRUCT_Type *base)
	Read data (PCM sample pair of two 16-bit samples) at the top destination FIFO entry (data[31:0] = DATA[31:0]). More...
__STATIC_INLINE void	Cy_Mixer_Dst_ClearInterrupt (volatile MIXER_DST_STRUCT_Type *base, cy_en_mixer_dst_interrupt_t intSrc)
	Destination interrupt clear (HW sets and SW clears) More...
__STATIC_INLINE void	Cy_Mixer_Dst_SetInterrupt (volatile MIXER_DST_STRUCT_Type *base, cy_en_mixer_dst_interrupt_t intSrc)
	Destination interrupt set (Write this field with '1' to set corresponding INTR_DST field) More...
__STATIC_INLINE void	Cy_Mixer_Dst_ClearInterruptMask (volatile MIXER_DST_STRUCT_Type *base, cy_en_mixer_dst_interrupt_t intSrc)
	Destination interrupt clear Mask for corresponding field in INTR_DST register. More...
__STATIC_INLINE void	Cy_Mixer_Dst_SetInterruptMask (volatile MIXER_DST_STRUCT_Type *base, cy_en_mixer_dst_interrupt_t intSrc)
	Destination interrupt set Mask for corresponding field in INTR_DST register. More...
__STATIC_INLINE bool	Cy_Mixer_Dst_IsInterruptActive (volatile MIXER_DST_STRUCT_Type *base, cy_en_mixer_dst_interrupt_t intSrc)
	Get destination interrupt active state. More...

Function Documentation

Cy_Mixer_SourceInit()

cy_en_mixer_status_t Cy_Mixer_SourceInit	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_stc_mixer_src_config_t const *	config
	)

Initializes the Mixer source structure.

Parameters

base	Pointer to the Mixer SRC Struct instance.
config	The pointer to a configuration structure.

Returns

error / status code. See cy_en_mixer_status_t.

Function Usage

    /* Scenario: Set up and start a mixer source */
    cy_stc_mixer_src_config_t config = {
        .fsRatio = CY_MIXER_SRC_FREQ_NO_RESAMPLE,
        .ch0sel = CY_MIXER_SRC_DATA_LOW,
        .ch1sel = CY_MIXER_SRC_DATA_HIGH,
        .fadeCode = CY_MIXER_CODE_MUTE,
        .gainCode = 115,
        .trgLevel = 0,
    };

    /* Apply mixer source configuration */
    Cy_Mixer_SourceInit(MIXER0_MIXER_SRC_STRUCT0, &config);

    /* Enable the mixer source */
    Cy_Mixer_Src_Enable(MIXER0_MIXER_SRC_STRUCT0);

    /* Activate the mixer source */
    Cy_Mixer_Src_Activate(MIXER0_MIXER_SRC_STRUCT0);

Cy_Mixer_SourceDeInit()

void Cy_Mixer_SourceDeInit

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Deinitialize the Mixer source structure.

Parameters

base	Pointer to the Mixer SRC Struct instance.

Returns

None.

Function Usage

    /* Scenario: The mixer source structure is initialized/working and then no longer used or needs to be reset */
    Cy_Mixer_SourceDeInit(MIXER0_MIXER_SRC_STRUCT0);

Cy_Mixer_DestinationInit()

cy_en_mixer_status_t Cy_Mixer_DestinationInit	(	volatile MIXER_DST_STRUCT_Type *	base,
		cy_stc_mixer_dst_config_t const *	config
	)

Initializes the Mixer destination structure.

Parameters

base	Pointer to the Mixer DST Struct instance.
config	The pointer to a configuration structure.

Returns

error / status code. See cy_en_mixer_status_t.

Function Usage

    /* Scenario: Set up and start a mixer destination */
    cy_stc_mixer_dst_config_t config = {
        .fadeCode = CY_MIXER_CODE_SAME,
        .gainCode = 115,
        .trgLevel = 0,
    };

    /* Apply mixer destination configuration */
    Cy_Mixer_DestinationInit(MIXER0_MIXER_DST_STRUCT, &config);

    /* Enable the mixer destination */
    Cy_Mixer_Dst_Enable(MIXER0_MIXER_DST_STRUCT);

    /* Activate the mixer destination */
    Cy_Mixer_Dst_Activate(MIXER0_MIXER_DST_STRUCT);

Cy_Mixer_DestinationDeInit()

void Cy_Mixer_DestinationDeInit

(

volatile MIXER_DST_STRUCT_Type *

base

)

DeInitializes the Mixer destination structure.

Parameters

base	Pointer to the Mixer DST Struct instance.

Returns

None.

Function Usage

    /* Scenario: The mixer destination structure is initialized/working and then no longer used or needs to be reset */
    Cy_Mixer_DestinationDeInit(MIXER0_MIXER_DST_STRUCT);

Cy_Mixer_SourceStartFadeIn()

void Cy_Mixer_SourceStartFadeIn	(	volatile MIXER_SRC_STRUCT_Type *	base,
		uint16_t	pace
	)

triggers source fade in.

Parameters

base	Pointer to the Mixer SRC Struct instance.
pace	pace of the fade in

Returns

None.

Function Usage

    /* Scenario: Start fading in an active mixer source and wait until the fade-in has completed */
    Cy_Mixer_SourceStartFadeIn(MIXER0_MIXER_SRC_STRUCT0, 1023ul);

    while (!Cy_Mixer_SourceHasFadeInCompleted(MIXER0_MIXER_SRC_STRUCT0))
    {
        // wait until fade-in is done
    }

Cy_Mixer_SourceHasFadeInCompleted()

bool Cy_Mixer_SourceHasFadeInCompleted

(

volatile MIXER_SRC_STRUCT_Type *

base

)

checks previous fade in operation already completed or not

Parameters

base	Pointer to the Mixer SRC Struct instance.

Returns

true : Previous fade in operation already completed
false: Previous fade in operation still in progress

Function Usage

    /* Scenario: Start fading in an active mixer source and wait until the fade-in has completed */
    Cy_Mixer_SourceStartFadeIn(MIXER0_MIXER_SRC_STRUCT0, 1023ul);

    while (!Cy_Mixer_SourceHasFadeInCompleted(MIXER0_MIXER_SRC_STRUCT0))
    {
        // wait until fade-in is done
    }

Cy_Mixer_SourceStartFadeOut()

void Cy_Mixer_SourceStartFadeOut	(	volatile MIXER_SRC_STRUCT_Type *	base,
		uint16_t	pace,
		bool	deact
	)

triggers fade out

Parameters

base	Pointer to the Mixer SRC Struct instance.
pace	pace of the fade out
deact	true: deactivate the src FIFO when fade out completed false: Do not deactivate the src FIFO when fade out completed

Returns

None.

Function Usage

    /* Scenario: Start fading out an active mixer source and wait until the fade-out has completed */
    Cy_Mixer_SourceStartFadeOut(MIXER0_MIXER_SRC_STRUCT0, 1023ul, true);

    while (!Cy_Mixer_SourceHasFadeOutCompleted(MIXER0_MIXER_SRC_STRUCT0))
    {
        // wait until fade-out is done
    }

Cy_Mixer_SourceHasFadeOutCompleted()

bool Cy_Mixer_SourceHasFadeOutCompleted

(

volatile MIXER_SRC_STRUCT_Type *

base

)

checks previous fade out operation already completed or not

Parameters

base	Pointer to the Mixer SRC Struct instance.

Returns

true : Previous fade out operation already completed
false: Previous fade out operation still in progress

Function Usage

    /* Scenario: Start fading out an active mixer source and wait until the fade-out has completed */
    Cy_Mixer_SourceStartFadeOut(MIXER0_MIXER_SRC_STRUCT0, 1023ul, true);

    while (!Cy_Mixer_SourceHasFadeOutCompleted(MIXER0_MIXER_SRC_STRUCT0))
    {
        // wait until fade-out is done
    }

Cy_Mixer_DestinationStartFadeIn()

void Cy_Mixer_DestinationStartFadeIn	(	volatile MIXER_DST_STRUCT_Type *	base,
		uint16_t	pace
	)

triggers destination fade in.

Parameters

base	Pointer to the Mixer DST Struct instance.
pace	pace of the fade in

Returns

None.

Function Usage

    /* Scenario: Start fading in an active mixer destination and wait until the fade-in has completed */
    Cy_Mixer_DestinationStartFadeIn(MIXER0_MIXER_DST_STRUCT, 1023ul);

    while (!Cy_Mixer_DestinationHasFadeInCompleted(MIXER0_MIXER_DST_STRUCT))
    {
        // wait until fade-in is done
    }

Cy_Mixer_DestinationHasFadeInCompleted()

bool Cy_Mixer_DestinationHasFadeInCompleted

(

volatile MIXER_DST_STRUCT_Type *

base

)

checks previous fade in operation already completed or not

Parameters

base	Pointer to the Mixer DST Struct instance.

Returns

true : Previous fade in operation already completed
false: Previous fade in operation still in progress

Function Usage

    /* Scenario: Start fading in an active mixer destination and wait until the fade-in has completed */
    Cy_Mixer_DestinationStartFadeIn(MIXER0_MIXER_DST_STRUCT, 1023ul);

    while (!Cy_Mixer_DestinationHasFadeInCompleted(MIXER0_MIXER_DST_STRUCT))
    {
        // wait until fade-in is done
    }

Cy_Mixer_DestinationStartFadeOut()

void Cy_Mixer_DestinationStartFadeOut	(	volatile MIXER_DST_STRUCT_Type *	base,
		uint16_t	pace,
		bool	deact
	)

triggers fade out

Parameters

base	Pointer to the Mixer DST Struct instance.
pace	pace of the fade out
deact	true: deactivate the dst FIFO when fade out completed false: Do not deactivate the dst FIFO when fade out completed

Returns

None.

Function Usage

    /* Scenario: Start fading out an active mixer destination and wait until the fade-out has completed */
    Cy_Mixer_DestinationStartFadeOut(MIXER0_MIXER_DST_STRUCT, 1023ul, true);

    while (!Cy_Mixer_DestinationHasFadeOutCompleted(MIXER0_MIXER_DST_STRUCT))
    {
        // wait until fade-out is done
    }

Cy_Mixer_DestinationHasFadeOutCompleted()

bool Cy_Mixer_DestinationHasFadeOutCompleted

(

volatile MIXER_DST_STRUCT_Type *

base

)

checks previous fade out operation already completed or not

Parameters

base	Pointer to the Mixer DST Struct instance.

Returns

true : Previous fade out operation already completed
false: Previous fade out operation still in progress

Function Usage

    /* Scenario: Start fading out an active mixer destination and wait until the fade-out has completed */
    Cy_Mixer_DestinationStartFadeOut(MIXER0_MIXER_DST_STRUCT, 1023ul, true);

    while (!Cy_Mixer_DestinationHasFadeOutCompleted(MIXER0_MIXER_DST_STRUCT))
    {
        // wait until fade-out is done
    }

Cy_Mixer_Src_SampleFreqRatio()

__STATIC_INLINE void Cy_Mixer_Src_SampleFreqRatio	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_en_mixer_src_fs_ratio_t	fsRatio
	)

Set the source sample frequency upscale ratio.

Parameters

base	pointer to the Mixer SRC Struct instance
fsRatio	cy_en_mixer_src_fs_ratio_t

Cy_Mixer_Src_ChannelSelect()

__STATIC_INLINE void Cy_Mixer_Src_ChannelSelect	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_en_mixer_channel_t	channel,
		cy_en_mixer_src_data_t	data
	)

Channel selection, specifies selection of the channel's 16-bit PCM data from source FIFO data[31:0].

Parameters

base	pointer to the Mixer SRC Struct instance
channel	cy_en_mixer_channel_t
data	cy_en_mixer_src_data_t

Cy_Mixer_Src_Enable()

__STATIC_INLINE void Cy_Mixer_Src_Enable

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Mixer source enable.

Parameters

base	pointer to the Mixer SRC Struct instance

Function Usage

    /* Scenario: Set up and start a mixer source */
    cy_stc_mixer_src_config_t config = {
        .fsRatio = CY_MIXER_SRC_FREQ_NO_RESAMPLE,
        .ch0sel = CY_MIXER_SRC_DATA_LOW,
        .ch1sel = CY_MIXER_SRC_DATA_HIGH,
        .fadeCode = CY_MIXER_CODE_MUTE,
        .gainCode = 115,
        .trgLevel = 0,
    };

    /* Apply mixer source configuration */
    Cy_Mixer_SourceInit(MIXER0_MIXER_SRC_STRUCT0, &config);

    /* Enable the mixer source */
    Cy_Mixer_Src_Enable(MIXER0_MIXER_SRC_STRUCT0);

    /* Activate the mixer source */
    Cy_Mixer_Src_Activate(MIXER0_MIXER_SRC_STRUCT0);

Cy_Mixer_Src_Disable()

__STATIC_INLINE void Cy_Mixer_Src_Disable

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Mixer source disable.

Parameters

base	pointer to the Mixer SRC Struct instance

Function Usage

    /* Scenario: An active mixer source needs to be disabled */

    /* Deactivate the mixer source */
    Cy_Mixer_Src_Deactivate(MIXER0_MIXER_SRC_STRUCT0);

    /* Disable the mixer source */
    Cy_Mixer_Src_Disable(MIXER0_MIXER_SRC_STRUCT0);

Cy_Mixer_Src_GetCurrentPhase()

__STATIC_INLINE uint8_t Cy_Mixer_Src_GetCurrentPhase

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Get the current FIR phase value.

An upscale ratio of "n" uses a n polyphase FIR filter. The phases are numbered [0, n-1].

Parameters

base	pointer to the Mixer SRC Struct instance

Returns

The current FIR phase value.

Cy_Mixer_Src_FadeControl()

__STATIC_INLINE void Cy_Mixer_Src_FadeControl	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_en_mixer_fade_code_t	fadeCode
	)

Set the source fade control (Gain code in the range [0, 115])

Parameters

base	pointer to the Mixer SRC Struct instance
fadeCode	cy_en_mixer_fade_code_t

Cy_Mixer_Src_GetCurrentPace()

__STATIC_INLINE uint16_t Cy_Mixer_Src_GetCurrentPace

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Get the current source fading pace counter value.

SRC_FADE_CTL.PACE value of "n" reuses a specific fade value "n+1" times.

Parameters

base	pointer to the Mixer SRC Struct instance

Returns

The current fading pace counter value

Cy_Mixer_Src_FadeInEnable()

__STATIC_INLINE void Cy_Mixer_Src_FadeInEnable

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Mixer source fade in enable (SW sets this field to '1' to start "fade in" functionality.

HW clears this field to '0' to indicate that "fade in" has completed)

FADE_IN and FADE_OUT should be used mutually exclusively. However, if "fade in" is desired while "fading out", SW can set FADE_IN to '1' and clear FADE_OUT to '0'. "Fade in" will commence from the current CODE value. Similarly, if "fade out" is desired while "fading in", SW can set FADE_OUT to '1' and clear FADE_IN to '0'. "Fade out" will commence from the current CODE value.

Parameters

base	pointer to the Mixer SRC Struct instance

Cy_Mixer_Src_FadeInDisable()

__STATIC_INLINE void Cy_Mixer_Src_FadeInDisable

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Mixer source fade in disable.

Parameters

base	pointer to the Mixer SRC Struct instance

Cy_Mixer_Src_FadeOutEnable()

__STATIC_INLINE void Cy_Mixer_Src_FadeOutEnable

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Mixer source fade out enable.

Parameters

base	pointer to the Mixer SRC Struct instance

Cy_Mixer_Src_FadeOutDisable()

__STATIC_INLINE void Cy_Mixer_Src_FadeOutDisable

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Mixer source fade out disable.

Parameters

base	pointer to the Mixer SRC Struct instance

Cy_Mixer_Src_AutoFadeActivate()

__STATIC_INLINE void Cy_Mixer_Src_AutoFadeActivate

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Configures the mixer source to NOT deactivate when "fade out" completes.

Parameters

base	pointer to the Mixer SRC Struct instance

Cy_Mixer_Src_AutoFadeDeactivate()

__STATIC_INLINE void Cy_Mixer_Src_AutoFadeDeactivate

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Configures the mixer source to automatically deactivate when "fade out" completes.

Parameters

base	pointer to the Mixer SRC Struct instance

Cy_Mixer_Src_FadePaceSelect()

__STATIC_INLINE void Cy_Mixer_Src_FadePaceSelect	(	volatile MIXER_SRC_STRUCT_Type *	base,
		uint16_t	pace
	)

Specifies the pace/speed of source "fade in" and "fade out".

Parameters

base	pointer to the Mixer SRC Struct instance
pace	(10-bit value) "0": The same CODE value is used (0+1) times, "1": The same CODE value is used (1+1) times. ... "1023": The same CODE value is used (1023+1) times. A fade in from "mute" to 0 dB takes 1024*116 = 118,784 PCM samples. At a PCM sample frequency Fs of 48 kHz, this translates into 118,784/48,000 = 2.474 seconds.

Cy_Mixer_Src_GainCodeSelect()

__STATIC_INLINE void Cy_Mixer_Src_GainCodeSelect	(	volatile MIXER_SRC_STRUCT_Type *	base,
		uint8_t	code
	)

Set the source gain code in the range [0, 127].

Each gain code increment represents 1 dB. Gain code value "0" represents digital mute. Gain code "127" represents a maximum amplification of 12 dB.

Parameters

base

pointer to the Mixer SRC Struct instance

code

(7-bit value) "0": digital mute. Multiplier value is "0" and "shift" is "26". "1": -114 dB. Multiplier value is "134" and "shift" is "26". "2": -113 dB. Multiplier value is "150" and "shift" is "26". "3": -112 dB. Multiplier value is "169" and "shift" is "26". ... "115": 0 dB. Multiplier value is "4096" and "shift" is "12". Note that (4096 * x) >> 12 = x; i.e. the PCM value is unaffected. ... "121": 6 dB. Multiplier value is "8173" and "shift" is "12". ... "127": 12 dB. Multiplier value is "8153" and "shift" is "11".

Cy_Mixer_Src_FifoTriggerLevel()

__STATIC_INLINE void Cy_Mixer_Src_FifoTriggerLevel	(	volatile MIXER_SRC_STRUCT_Type *	base,
		uint8_t	level
	)

Set the source FIFO trigger level.

When the source FIFO has fewer entries than the number of this field, a transmitter trigger event is generated.

Parameters

base	pointer to the Mixer SRC Struct instance
level	(7-bit value) (INTR_SRC.FIFO_TRIGGER = (# FIFO entries < TRIGGER_LEVEL))

Cy_Mixer_Src_Mute()

__STATIC_INLINE void Cy_Mixer_Src_Mute

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Mute the mixer source.

Parameters

base	pointer to the Mixer SRC Struct instance

Function Usage

    /* Scenario: An active mixer source needs to be muted */
    Cy_Mixer_Src_Mute(MIXER0_MIXER_SRC_STRUCT0);

Cy_Mixer_Src_Unmute()

__STATIC_INLINE void Cy_Mixer_Src_Unmute

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Unmute the mixer source.

Parameters

base	pointer to the Mixer SRC Struct instance

Function Usage

    /* Scenario: A muted mixer source needs to be unmuted */
    Cy_Mixer_Src_Unmute(MIXER0_MIXER_SRC_STRUCT0);

Cy_Mixer_Src_Activate()

__STATIC_INLINE void Cy_Mixer_Src_Activate

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Activate the mixer source.

Parameters

base	pointer to the Mixer SRC Struct instance

Function Usage

    /* Scenario: Set up and start a mixer source */
    cy_stc_mixer_src_config_t config = {
        .fsRatio = CY_MIXER_SRC_FREQ_NO_RESAMPLE,
        .ch0sel = CY_MIXER_SRC_DATA_LOW,
        .ch1sel = CY_MIXER_SRC_DATA_HIGH,
        .fadeCode = CY_MIXER_CODE_MUTE,
        .gainCode = 115,
        .trgLevel = 0,
    };

    /* Apply mixer source configuration */
    Cy_Mixer_SourceInit(MIXER0_MIXER_SRC_STRUCT0, &config);

    /* Enable the mixer source */
    Cy_Mixer_Src_Enable(MIXER0_MIXER_SRC_STRUCT0);

    /* Activate the mixer source */
    Cy_Mixer_Src_Activate(MIXER0_MIXER_SRC_STRUCT0);

Cy_Mixer_Src_Deactivate()

__STATIC_INLINE void Cy_Mixer_Src_Deactivate

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Deactivate the mixer source.

Parameters

base	pointer to the Mixer SRC Struct instance

Function Usage

    /* Scenario: An active mixer source needs to be disabled */

    /* Deactivate the mixer source */
    Cy_Mixer_Src_Deactivate(MIXER0_MIXER_SRC_STRUCT0);

    /* Disable the mixer source */
    Cy_Mixer_Src_Disable(MIXER0_MIXER_SRC_STRUCT0);

Cy_Mixer_Src_GetUsedFifoEntries()

__STATIC_INLINE uint8_t Cy_Mixer_Src_GetUsedFifoEntries

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Get the number of used/occupied entries in the source FIFO.

The field value is in the range [0, 128]. When "0", the FIFO is empty. When "128", the FIFO is full.

Parameters

base	pointer to the Mixer SRC Struct instance

Returns

uint8_t number of used/occupied entries in the source FIFO

Cy_Mixer_Src_GetFifoReadPtr()

__STATIC_INLINE uint8_t Cy_Mixer_Src_GetFifoReadPtr

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Get the source FIFO read pointer (Source FIFO location from which a data is read).

Parameters

base	pointer to the Mixer SRC Struct instance

Returns

uint8_t read pointer value

Cy_Mixer_Src_GetFifoWritePtr()

__STATIC_INLINE uint8_t Cy_Mixer_Src_GetFifoWritePtr

(

volatile MIXER_SRC_STRUCT_Type *

base

)

Get the source FIFO write pointer (Source FIFO location at which new data is written by the hardware).

Parameters

base	pointer to the Mixer SRC Struct instance

Returns

uint8_t write pointer value

Cy_Mixer_Src_FifoWriteData()

__STATIC_INLINE void Cy_Mixer_Src_FifoWriteData	(	volatile MIXER_SRC_STRUCT_Type *	base,
		uint32_t	data
	)

Data (PCM sample pair of two 16-bit samples) written to the top source FIFO entry (data[31:0] = DATA[31:0]).

Typically, DATA[15:0] is used for channel 0 and DATA[31:16] is used for channel 1. Writing adds the data to the source FIFO; i.e. behavior is similar to that of a PUSH operation.

Parameters

base	pointer to the Mixer SRC Struct instance
data	32-bit data

Function Usage

    /* Scenario: PCM data needs to be written to the FIFO of an active mixer source */
    const int16_t pcmData[2] =
    {
        11187, // channel 0 data
        -31119 // channel 1 data
    };

    /* Write a SRC FIFO data element containing 2-channel data */
    Cy_Mixer_Src_FifoWriteData(MIXER0_MIXER_SRC_STRUCT0, *((uint32_t *)pcmData));

Cy_Mixer_Src_ClearInterrupt()

__STATIC_INLINE void Cy_Mixer_Src_ClearInterrupt	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_en_mixer_src_interrupt_t	intSrc
	)

Source interrupt clear (HW sets and SW clears)

Parameters

base	pointer to the Mixer SRC Struct instance
intSrc	cy_en_mixer_src_interrupt_t

Function Usage

    /* Scenario: Inside the mixer source interrupt service routine */
    if (Cy_Mixer_Src_IsInterruptActive(MIXER0_MIXER_SRC_STRUCT0, CY_MIXER_SRC_FIFO_TRIGGER))
    {
        Cy_Mixer_Src_ClearInterrupt(MIXER0_MIXER_SRC_STRUCT0, CY_MIXER_SRC_FIFO_TRIGGER);
    }

Cy_Mixer_Src_SetInterrupt()

__STATIC_INLINE void Cy_Mixer_Src_SetInterrupt	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_en_mixer_src_interrupt_t	intSrc
	)

Source interrupt set (Write this field with '1' to set corresponding INTR_SRC field)

Parameters

base	pointer to the Mixer SRC Struct instance
intSrc	cy_en_mixer_src_interrupt_t

Cy_Mixer_Src_ClearInterruptMask()

__STATIC_INLINE void Cy_Mixer_Src_ClearInterruptMask	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_en_mixer_src_interrupt_t	intSrc
	)

Source interrupt clear Mask for corresponding field in INTR_SRC register.

Parameters

base	pointer to the Mixer SRC Struct instance
intSrc	cy_en_mixer_src_interrupt_t

Function Usage

    /* Scenario: Disable interrupts from the FIFO trigger and enable interrupts from FIFO overflow */
    Cy_Mixer_Src_ClearInterruptMask(MIXER0_MIXER_SRC_STRUCT0, CY_MIXER_SRC_FIFO_TRIGGER);
    Cy_Mixer_Src_SetInterruptMask(MIXER0_MIXER_SRC_STRUCT0, CY_MIXER_SRC_FIFO_OVERFLOW);

Cy_Mixer_Src_SetInterruptMask()

__STATIC_INLINE void Cy_Mixer_Src_SetInterruptMask	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_en_mixer_src_interrupt_t	intSrc
	)

Source interrupt set Mask for corresponding field in INTR_SRC register.

Parameters

base	pointer to the Mixer SRC Struct instance
intSrc	cy_en_mixer_src_interrupt_t

Function Usage

    /* Scenario: Disable interrupts from the FIFO trigger and enable interrupts from FIFO overflow */
    Cy_Mixer_Src_ClearInterruptMask(MIXER0_MIXER_SRC_STRUCT0, CY_MIXER_SRC_FIFO_TRIGGER);
    Cy_Mixer_Src_SetInterruptMask(MIXER0_MIXER_SRC_STRUCT0, CY_MIXER_SRC_FIFO_OVERFLOW);

Cy_Mixer_Src_IsInterruptActive()

__STATIC_INLINE bool Cy_Mixer_Src_IsInterruptActive	(	volatile MIXER_SRC_STRUCT_Type *	base,
		cy_en_mixer_src_interrupt_t	intSrc
	)

Get source interrupt active state.

Parameters

base	pointer to the Mixer SRC Struct instance
intSrc	cy_en_mixer_src_interrupt_t

Returns

true: interrupt is set false: interrupt is not set

Function Usage

    /* Scenario: Inside the mixer source interrupt service routine */
    if (Cy_Mixer_Src_IsInterruptActive(MIXER0_MIXER_SRC_STRUCT0, CY_MIXER_SRC_FIFO_TRIGGER))
    {
        Cy_Mixer_Src_ClearInterrupt(MIXER0_MIXER_SRC_STRUCT0, CY_MIXER_SRC_FIFO_TRIGGER);
    }

Cy_Mixer_Dst_Enable()

__STATIC_INLINE void Cy_Mixer_Dst_Enable

(

volatile MIXER_DST_STRUCT_Type *

base

)

Mixer destination enable.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: Set up and start a mixer destination */
    cy_stc_mixer_dst_config_t config = {
        .fadeCode = CY_MIXER_CODE_SAME,
        .gainCode = 115,
        .trgLevel = 0,
    };

    /* Apply mixer destination configuration */
    Cy_Mixer_DestinationInit(MIXER0_MIXER_DST_STRUCT, &config);

    /* Enable the mixer destination */
    Cy_Mixer_Dst_Enable(MIXER0_MIXER_DST_STRUCT);

    /* Activate the mixer destination */
    Cy_Mixer_Dst_Activate(MIXER0_MIXER_DST_STRUCT);

Cy_Mixer_Dst_Disable()

__STATIC_INLINE void Cy_Mixer_Dst_Disable

(

volatile MIXER_DST_STRUCT_Type *

base

)

Mixer destination disable.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: The active mixer destination needs to be disabled */

    /* Deactivate the mixer destination */
    Cy_Mixer_Dst_Deactivate(MIXER0_MIXER_DST_STRUCT);

    /* Disable the mixer destination */
    Cy_Mixer_Dst_Disable(MIXER0_MIXER_DST_STRUCT);

Cy_Mixer_Dst_FadeControl()

__STATIC_INLINE void Cy_Mixer_Dst_FadeControl	(	volatile MIXER_DST_STRUCT_Type *	base,
		cy_en_mixer_fade_code_t	fadeCode
	)

Set the destination fade control (Gain code in the range [0, 115])

Parameters

base	pointer to the Mixer DST Struct instance
fadeCode	cy_en_mixer_fade_code_t

Cy_Mixer_Dst_GetCurrentPace()

__STATIC_INLINE uint16_t Cy_Mixer_Dst_GetCurrentPace

(

volatile MIXER_DST_STRUCT_Type *

base

)

Get the Destination fading pace counter value.

DST_FADE_CTL.PACE value of "n" reuses a specific fade value "n+1" times.

Parameters

base	pointer to the Mixer DST Struct instance

Returns

uint16_t fading pace counter value

Cy_Mixer_Dst_FadeInEnable()

__STATIC_INLINE void Cy_Mixer_Dst_FadeInEnable

(

volatile MIXER_DST_STRUCT_Type *

base

)

Mixer destination fade in enable.

(SW sets this field to '1' to start "fade in" functionality. HW clears this field to '0' to indicate that "fade in" has completed) FADE_IN and FADE_OUT should be used mutually exclusively. However, if "fade in" is desired while "fading out", SW can set FADE_IN to '1' and clear FADE_OUT to '0'. "Fade in" will commence from the current CODE value. Similarly, if "fade out" is desired while "fading in", SW can set FADE_OUT to '1' and clear FADE_IN to '0'. "Fade out" will commence from the current CODE value.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: Start fading in the active mixer destination */

    /* Configure the pace of the fade in */
    Cy_Mixer_Dst_FadePaceSelect(MIXER0_MIXER_DST_STRUCT, 511);

    /* Start the fade in operation */
    Cy_Mixer_Dst_FadeInEnable(MIXER0_MIXER_DST_STRUCT);

    while (0 != _FLD2VAL(MIXER_MIXER_DST_STRUCT_DST_FADE_CMD_FADE_IN, MIXER_DST_STRUCT_DST_FADE_CMD(MIXER0_MIXER_DST_STRUCT)))
    {
        // Destination is fading in
    }

Cy_Mixer_Dst_FadeInDisable()

__STATIC_INLINE void Cy_Mixer_Dst_FadeInDisable

(

volatile MIXER_DST_STRUCT_Type *

base

)

Mixer destination fade in disable.

Parameters

base	pointer to the Mixer DST Struct instance

Cy_Mixer_Dst_FadeOutEnable()

__STATIC_INLINE void Cy_Mixer_Dst_FadeOutEnable

(

volatile MIXER_DST_STRUCT_Type *

base

)

Mixer destination fade out enable.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: Start fading in the active mixer destination */

    /* Configure the pace of the fade out */
    Cy_Mixer_Dst_FadePaceSelect(MIXER0_MIXER_DST_STRUCT, 511);

    /* Automatically disable the destination when the fade out completes */
    Cy_Mixer_Dst_AutoFadeDeactivate(MIXER0_MIXER_DST_STRUCT);

    /* Start the fade out operation */
    Cy_Mixer_Dst_FadeOutEnable(MIXER0_MIXER_DST_STRUCT);

    while (0 != _FLD2VAL(MIXER_MIXER_DST_STRUCT_DST_FADE_CMD_FADE_OUT, MIXER_DST_STRUCT_DST_FADE_CMD(MIXER0_MIXER_DST_STRUCT)))
    {
        // Destination is fading out
    }

Cy_Mixer_Dst_FadeOutDisable()

__STATIC_INLINE void Cy_Mixer_Dst_FadeOutDisable

(

volatile MIXER_DST_STRUCT_Type *

base

)

Mixer destination fade out disable.

Parameters

base	pointer to the Mixer DST Struct instance

Cy_Mixer_Dst_AutoFadeActivate()

__STATIC_INLINE void Cy_Mixer_Dst_AutoFadeActivate

(

volatile MIXER_DST_STRUCT_Type *

base

)

Configures the mixer destination to NOT deactivate when "fade out" completes.

Parameters

base	pointer to the Mixer DST Struct instance

Cy_Mixer_Dst_AutoFadeDeactivate()

__STATIC_INLINE void Cy_Mixer_Dst_AutoFadeDeactivate

(

volatile MIXER_DST_STRUCT_Type *

base

)

Configures the mixer destination to automatically deactivate when "fade out" completes.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: Start fading in the active mixer destination */

    /* Configure the pace of the fade out */
    Cy_Mixer_Dst_FadePaceSelect(MIXER0_MIXER_DST_STRUCT, 511);

    /* Automatically disable the destination when the fade out completes */
    Cy_Mixer_Dst_AutoFadeDeactivate(MIXER0_MIXER_DST_STRUCT);

    /* Start the fade out operation */
    Cy_Mixer_Dst_FadeOutEnable(MIXER0_MIXER_DST_STRUCT);

    while (0 != _FLD2VAL(MIXER_MIXER_DST_STRUCT_DST_FADE_CMD_FADE_OUT, MIXER_DST_STRUCT_DST_FADE_CMD(MIXER0_MIXER_DST_STRUCT)))
    {
        // Destination is fading out
    }

Cy_Mixer_Dst_FadePaceSelect()

__STATIC_INLINE void Cy_Mixer_Dst_FadePaceSelect	(	volatile MIXER_DST_STRUCT_Type *	base,
		uint16_t	pace
	)

Destination fade pace select (Specifies the pace/speed of "fade in" and "fade out")

Parameters

base	pointer to the Mixer DST Struct instance
pace	(10-bit value) "0": The same CODE value is used (0+1) times, "1": The same CODE value is used (1+1) times. ... "1023": The same CODE value is used (1023+1) times. A fade in from "mute" to 0 dB takes 1024*116 = 118,784 PCM samples. At a PCM sample frequency Fs of 48 kHz, this translates into 118,784/48,000 = 2.474 seconds.

Function Usage

    /* Scenario: Start fading in the active mixer destination */

    /* Configure the pace of the fade in */
    Cy_Mixer_Dst_FadePaceSelect(MIXER0_MIXER_DST_STRUCT, 511);

    /* Start the fade in operation */
    Cy_Mixer_Dst_FadeInEnable(MIXER0_MIXER_DST_STRUCT);

    while (0 != _FLD2VAL(MIXER_MIXER_DST_STRUCT_DST_FADE_CMD_FADE_IN, MIXER_DST_STRUCT_DST_FADE_CMD(MIXER0_MIXER_DST_STRUCT)))
    {
        // Destination is fading in
    }

Cy_Mixer_Dst_GainCodeSelect()

__STATIC_INLINE void Cy_Mixer_Dst_GainCodeSelect	(	volatile MIXER_DST_STRUCT_Type *	base,
		uint8_t	code
	)

Set the destination gain code in the range [0, 127].

Each gain code increment represents 1 dB. Gain code value "0" represents digital mute. Gain code "127" represents a maximum amplification of 12 dB.

Parameters

base

pointer to the Mixer DST Struct instance

code

(7-bit value) "0": digital mute. Multiplier value is "0" and "shift" is "26". "1": -114 dB. Multiplier value is "134" and "shift" is "26". "2": -113 dB. Multiplier value is "150" and "shift" is "26". "3": -112 dB. Multiplier value is "169" and "shift" is "26". ... "115": 0 dB. Multiplier value is "4096" and "shift" is "12". Note that (4096 * x) >> 12 = x; i.e. the PCM value is unaffected. ... "121": 6 dB. Multiplier value is "8173" and "shift" is "12". ... "127": 12 dB. Multiplier value is "8153" and "shift" is "11".

Cy_Mixer_Dst_FifoTriggerLevel()

__STATIC_INLINE void Cy_Mixer_Dst_FifoTriggerLevel	(	volatile MIXER_DST_STRUCT_Type *	base,
		uint8_t	level
	)

Destination FIFO trigger level.

When the destination FIFO has more entries than the number of this field, a transmitter trigger event is generated.

Parameters

base	pointer to the Mixer DST Struct instance
level	(6-bit value) (INTR_SRC.FIFO_TRIGGER = (# FIFO entries > TRIGGER_LEVEL))

Cy_Mixer_Dst_Mute()

__STATIC_INLINE void Cy_Mixer_Dst_Mute

(

volatile MIXER_DST_STRUCT_Type *

base

)

Mixer destination mute.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: The active mixer destination needs to be muted */
    Cy_Mixer_Dst_Mute(MIXER0_MIXER_DST_STRUCT);

Cy_Mixer_Dst_Unmute()

__STATIC_INLINE void Cy_Mixer_Dst_Unmute

(

volatile MIXER_DST_STRUCT_Type *

base

)

Mixer destination unmute.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: The muted mixer destination needs to be unmuted */
    Cy_Mixer_Dst_Unmute(MIXER0_MIXER_DST_STRUCT);

Cy_Mixer_Dst_Activate()

__STATIC_INLINE void Cy_Mixer_Dst_Activate

(

volatile MIXER_DST_STRUCT_Type *

base

)

Activate the mixer destination.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: Set up and start a mixer destination */
    cy_stc_mixer_dst_config_t config = {
        .fadeCode = CY_MIXER_CODE_SAME,
        .gainCode = 115,
        .trgLevel = 0,
    };

    /* Apply mixer destination configuration */
    Cy_Mixer_DestinationInit(MIXER0_MIXER_DST_STRUCT, &config);

    /* Enable the mixer destination */
    Cy_Mixer_Dst_Enable(MIXER0_MIXER_DST_STRUCT);

    /* Activate the mixer destination */
    Cy_Mixer_Dst_Activate(MIXER0_MIXER_DST_STRUCT);

Cy_Mixer_Dst_Deactivate()

__STATIC_INLINE void Cy_Mixer_Dst_Deactivate

(

volatile MIXER_DST_STRUCT_Type *

base

)

Deactivate the mixer destination.

Parameters

base	pointer to the Mixer DST Struct instance

Function Usage

    /* Scenario: The active mixer destination needs to be disabled */

    /* Deactivate the mixer destination */
    Cy_Mixer_Dst_Deactivate(MIXER0_MIXER_DST_STRUCT);

    /* Disable the mixer destination */
    Cy_Mixer_Dst_Disable(MIXER0_MIXER_DST_STRUCT);

Cy_Mixer_Dst_GetUsedFifoEntries()

__STATIC_INLINE uint8_t Cy_Mixer_Dst_GetUsedFifoEntries

(

volatile MIXER_DST_STRUCT_Type *

base

)

Number of used/occupied entries in the destination FIFO.

The field value is in the range [0, 128]. When "0", the FIFO is empty. When "128", the FIFO is full.

Parameters

base	pointer to the Mixer DST Struct instance

Returns

uint8_t number of used/occupied entries in the destination FIFO

Cy_Mixer_Dst_GetFifoReadPtr()

__STATIC_INLINE uint8_t Cy_Mixer_Dst_GetFifoReadPtr

(

volatile MIXER_DST_STRUCT_Type *

base

)

Get the destination FIFO read pointer (Destination FIFO location from which a data is read).

Parameters

base	pointer to the Mixer DST Struct instance

Returns

uint8_t read pointer value

Cy_Mixer_Dst_GetFifoWritePtr()

__STATIC_INLINE uint8_t Cy_Mixer_Dst_GetFifoWritePtr

(

volatile MIXER_DST_STRUCT_Type *

base

)

Get the destination FIFO write pointer (Destination FIFO location at which new data is written by the hardware).

Parameters

base	pointer to the Mixer DST Struct instance

Returns

uint8_t write pointer value

Cy_Mixer_Dst_FifoReadData()

__STATIC_INLINE uint32_t Cy_Mixer_Dst_FifoReadData

(

volatile MIXER_DST_STRUCT_Type *

base

)

Read data (PCM sample pair of two 16-bit samples) at the top destination FIFO entry (data[31:0] = DATA[31:0]).

Reading removes the data from the destination FIFO; i.e. behavior is similar to that of a POP operation (DST_FIFO_STATUS.RD_PTR is incremented and DST_FIFO_STATUS.USED is decremented).

Parameters

base	pointer to the Mixer DST Struct instance

Returns

uint32_t FIFO data sample

Function Usage

    /* Scenario: PCM data needs to be read from the FIFO of an active mixer destination */
    uint32_t fifoData = Cy_Mixer_Dst_FifoReadData(MIXER0_MIXER_DST_STRUCT);
    (void)fifoData;

Cy_Mixer_Dst_ClearInterrupt()

__STATIC_INLINE void Cy_Mixer_Dst_ClearInterrupt	(	volatile MIXER_DST_STRUCT_Type *	base,
		cy_en_mixer_dst_interrupt_t	intSrc
	)

Destination interrupt clear (HW sets and SW clears)

Parameters

base	pointer to the Mixer DST Struct instance
intSrc	cy_en_mixer_dst_interrupt_t

Function Usage

    /* Scenario: Inside the mixer destination interrupt service routine */
    if (Cy_Mixer_Dst_IsInterruptActive(MIXER0_MIXER_DST_STRUCT, CY_MIXER_DST_FIFO_TRIGGER))
    {
        Cy_Mixer_Dst_ClearInterrupt(MIXER0_MIXER_DST_STRUCT, CY_MIXER_DST_FIFO_TRIGGER);
    }

Cy_Mixer_Dst_SetInterrupt()

__STATIC_INLINE void Cy_Mixer_Dst_SetInterrupt	(	volatile MIXER_DST_STRUCT_Type *	base,
		cy_en_mixer_dst_interrupt_t	intSrc
	)

Destination interrupt set (Write this field with '1' to set corresponding INTR_DST field)

Parameters

base	pointer to the Mixer DST Struct instance
intSrc	cy_en_mixer_dst_interrupt_t

Cy_Mixer_Dst_ClearInterruptMask()

__STATIC_INLINE void Cy_Mixer_Dst_ClearInterruptMask	(	volatile MIXER_DST_STRUCT_Type *	base,
		cy_en_mixer_dst_interrupt_t	intSrc
	)

Destination interrupt clear Mask for corresponding field in INTR_DST register.

Parameters

base	pointer to the Mixer DST Struct instance
intSrc	cy_en_mixer_dst_interrupt_t

Function Usage

    /* Scenario: Disable interrupts from the FIFO trigger and enable interrupts from FIFO overflow */
    Cy_Mixer_Dst_ClearInterruptMask(MIXER0_MIXER_DST_STRUCT, CY_MIXER_DST_FIFO_TRIGGER);
    Cy_Mixer_Dst_SetInterruptMask(MIXER0_MIXER_DST_STRUCT, CY_MIXER_DST_FIFO_UNDERFLOW);

Cy_Mixer_Dst_SetInterruptMask()

__STATIC_INLINE void Cy_Mixer_Dst_SetInterruptMask	(	volatile MIXER_DST_STRUCT_Type *	base,
		cy_en_mixer_dst_interrupt_t	intSrc
	)

Destination interrupt set Mask for corresponding field in INTR_DST register.

Parameters

base	pointer to the Mixer DST Struct instance
intSrc	cy_en_mixer_dst_interrupt_t

Function Usage

    /* Scenario: Disable interrupts from the FIFO trigger and enable interrupts from FIFO overflow */
    Cy_Mixer_Dst_ClearInterruptMask(MIXER0_MIXER_DST_STRUCT, CY_MIXER_DST_FIFO_TRIGGER);
    Cy_Mixer_Dst_SetInterruptMask(MIXER0_MIXER_DST_STRUCT, CY_MIXER_DST_FIFO_UNDERFLOW);

Cy_Mixer_Dst_IsInterruptActive()

__STATIC_INLINE bool Cy_Mixer_Dst_IsInterruptActive	(	volatile MIXER_DST_STRUCT_Type *	base,
		cy_en_mixer_dst_interrupt_t	intSrc
	)

Get destination interrupt active state.

Parameters

base	pointer to the Mixer DST Struct instance
intSrc	cy_en_mixer_dst_interrupt_t

Returns

true: interrupt is set false: interrupt is not set

Function Usage

    /* Scenario: Inside the mixer destination interrupt service routine */
    if (Cy_Mixer_Dst_IsInterruptActive(MIXER0_MIXER_DST_STRUCT, CY_MIXER_DST_FIFO_TRIGGER))
    {
        Cy_Mixer_Dst_ClearInterrupt(MIXER0_MIXER_DST_STRUCT, CY_MIXER_DST_FIFO_TRIGGER);
    }