INPUTMUX: Input Multiplexing Driver

Overview

The MCUXpresso SDK provides a driver for the Input multiplexing (INPUTMUX).
It configures the inputs to the pin interrupt block, DMA trigger, and frequency measure function. Once configured, the clock is not needed for the inputmux.

Input Multiplexing Driver operation

INPUTMUX_AttachSignal function configures the specified input

Typical use case

Refer to the driver examples codes located at <SDK_ROOT>/boards/<BOARD>/driver_examples/inputmux

Files
file	fsl_inputmux.h
file	fsl_inputmux_connections.h

Functions
void	INPUTMUX_Init (INPUTMUX_Type *base)
	Initialize INPUTMUX peripheral. More...
void	INPUTMUX_AttachSignal (INPUTMUX_Type *base, uint32_t index, inputmux_connection_t connection)
	Attaches a signal. More...
void	INPUTMUX_EnableSignal (INPUTMUX_Type *base, inputmux_signal_t signal, bool enable)
	Enable/disable a signal. More...
void	INPUTMUX_Deinit (INPUTMUX_Type *base)
	Deinitialize INPUTMUX peripheral. More...

Input multiplexing connections
enum	inputmux_connection_t {   kINPUTMUX_SctGpioInAToSct0 = 0U + (SCT0_INMUX0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToSct0 = 58U + (SCT0_INMUX0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer0Captsel = 48U + (TIMER0CAPTSEL0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer0Trigger = 48U + (TIMER0TRIGIN << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer1Captsel = 48U + (TIMER1CAPTSEL0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer1Trigger = 48U + (TIMER1TRIGIN << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer2Captsel = 48U + (TIMER2CAPTSEL0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer2Trigger = 48U + (TIMER2TRIGIN << PMUX_SHIFT) ,   kINPUTMUX_GpioPort1Pin31ToPintsel = 63U + (PINTSEL0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToDma0 = 52U + (DMA0_ITRIG_INMUX0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutTrigoutToTriginChannels = 52U + (DMA0_OTRIG_INMUX0 << PMUX_SHIFT) ,   kINPUTMUX_Aoi1Out2ToFreqmeasRef = 9u + (FREQMEAS_REF_REG << PMUX_SHIFT) ,   kINPUTMUX_Aoi1Out2ToFreqmeasTarget = 9u + (FREQMEAS_TARGET_REG << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer3Captsel = 48U + (TIMER3CAPTSEL0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer3Trigger = 48U + (TIMER3TRIGIN << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToTimer4Captsel = 48U + (TIMER4CAPTSEL0 << PMUX_SHIFT) ,   kINPUTMUX_GpioPort0Pin31ToPintSecsel = 31U + (PINTSECSEL0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToDma1 = 24U + (DMA1_ITRIG_INMUX0 << PMUX_SHIFT) ,   kINPUTMUX_Dma1I3c0TxTrigoutToTriginChannels = 13U + (DMA1_OTRIG_INMUX0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToHscmp0Trigger = 37U + (HSCMP0_TRIGIN << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToAdc0Trigger = 52U + (ADC0_TRIG0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToAdc1Trigger = 52U + (ADC1_TRIG0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToDac0Trigger = 28U + (DAC0_TRIGIN << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToDac1Trigger = 28U + (DAC1_TRIGIN << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToDac2Trigger = 28U + (DAC2_TRIGIN << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc0Trigger = 54U + (ENC0TRIG << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc0Home = 54U + (ENC0HOME << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc0Index = 54U + (ENC0INDEX << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc0Phaseb = 54U + (ENC0PHASEB << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc0Phasea = 54U + (ENC0PHASEA << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc1Trigger = 54U + (ENC1TRIG << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc1Home = 54U + (ENC1HOME << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc1Index = 54U + (ENC1INDEX << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc1Phaseb = 54U + (ENC1PHASEB << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToEnc1Phasea = 54U + (ENC1PHASEA << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm0ExtSyncTrigger = 54U + (PWM0_EXTSYNC0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm0ExtATrigger = 54U + (PWM0_EXTA0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm0ExtForceTrigger = 54U + (PWM0_EXTFORCETRIG << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm0FaultTrigger = 54U + (PWM0_FAULT0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm0ExtClkTrigger = 54U + (PWM0_EXTCLKTRIG << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm1ExtSyncTrigger = 54U + (PWM1_EXTSYNC0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm1ExtATrigger = 54U + (PWM1_EXTA0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm1ExtForceTrigger = 54U + (PWM1_EXTFORCETRIG << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm1FaultTrigger = 54U + (PWM1_FAULT0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToPwm1ExtClkTrigger = 54U + (PWM1_EXTCLKTRIG << PMUX_SHIFT) ,   kINPUTMUX_Dma1Trigout2ToAoi0InTrigger = 60U + (AOI0_IN0 << PMUX_SHIFT) ,   kINPUTMUX_Dma1Trigout2ToAoi1InTrigger = 60U + (AOI1_IN0 << PMUX_SHIFT) ,   kINPUTMUX_TmprOutToAoiExtTrigger = 24U + (AOI_EXT_TRIG0 << PMUX_SHIFT) ,   kINPUTMUX_Dma0Trigout2ToHscmp1Trigger = 37U + (HSCMP1_TRIGIN << PMUX_SHIFT) }
	INPUTMUX connections type. More...
enum	inputmux_signal_t {   kINPUTMUX_FlexSpiRxToDmac0Ch0RequestEna = 0U + (DMA0_REQ_EN0_ID << ENA_SHIFT) ,   kINPUTMUX_Aoi0Out3ToDmac0Ch31RequestEna = 31U + (DMA0_REQ_EN0_ID << ENA_SHIFT) ,   kINPUTMUX_TmprOutToDmac0Ch52RequestEna = 20U + (DMA0_REQ_EN1_ID << ENA_SHIFT) ,   kINPUTMUX_I3c0TxToDmac1Ch13RequestEna = 13U + (DMA1_REQ_EN_ID << ENA_SHIFT) ,   kINPUTMUX_Dmac0InputTriggerAoi0Out3Ena = 31U + (DMA0_ITRIG_EN0_ID << ENA_SHIFT) ,   kINPUTMUX_Dmac0InputTriggerTmprOutEna = 20U + (DMA0_ITRIG_EN1_ID << ENA_SHIFT) }
	INPUTMUX signal enable/disable type. More...
#define	SCT0_INMUX0   0x00U
	Periphinmux IDs.
#define	TIMER0CAPTSEL0   0x20U
#define	TIMER0TRIGIN   0x30U
#define	TIMER1CAPTSEL0   0x40U
#define	TIMER1TRIGIN   0x50U
#define	TIMER2CAPTSEL0   0x60U
#define	TIMER2TRIGIN   0x70U
#define	PINTSEL_PMUX_ID   0xC0U
#define	PINTSEL0   0xC0U
#define	DMA0_ITRIG_INMUX0   0xE0U
#define	DMA0_OTRIG_INMUX0   0x160U
#define	FREQMEAS_REF_REG   0x180U
#define	FREQMEAS_TARGET_REG   0x184U
#define	TIMER3CAPTSEL0   0x1A0U
#define	TIMER3TRIGIN   0x1B0U
#define	TIMER4CAPTSEL0   0x1C0U
#define	TIMER4TRIGIN   0x1D0U
#define	PINTSECSEL0   0x1E0U
#define	DMA1_ITRIG_INMUX0   0x200U
#define	DMA1_OTRIG_INMUX0   0x240U
#define	HSCMP0_TRIGIN   0x260U
#define	ADC0_TRIG0   0x280U
#define	ADC1_TRIG0   0x2C0U
#define	DAC0_TRIGIN   0x300U
#define	DAC1_TRIGIN   0x320U
#define	DAC2_TRIGIN   0x340U
#define	ENC0TRIG   0x360U
#define	ENC0HOME   0x364U
#define	ENC0INDEX   0x368U
#define	ENC0PHASEB   0x36CU
#define	ENC0PHASEA   0x370U
#define	ENC1TRIG   0x380U
#define	ENC1HOME   0x384U
#define	ENC1INDEX   0x388U
#define	ENC1PHASEB   0x38CU
#define	ENC1PHASEA   0x390U
#define	PWM0_EXTSYNC0   0x3A0U
#define	PWM0_EXTA0   0x3B0U
#define	PWM0_EXTFORCETRIG   0x3C0U
#define	PWM0_FAULT0   0x3C4U
#define	PWM1_EXTSYNC0   0x3E0U
#define	PWM1_EXTA0   0x3F0U
#define	PWM1_EXTFORCETRIG   0x400U
#define	PWM1_FAULT0   0x404U
#define	PWM0_EXTCLKTRIG   0x420U
#define	PWM1_EXTCLKTRIG   0x424U
#define	AOI0_IN0   0x440U
#define	AOI1_IN0   0x480U
#define	AOI_EXT_TRIG0   0x4C0U
#define	HSCMP1_TRIGIN   0x4E0U
#define	HSCMP2_TRIGIN   0x500U
#define	DMA0_ITRIG_INMUX_32   0x520U
#define	DMA0_REQ_EN0_ID   0x740U
#define	DMA0_REQ_EN1_ID   0x744U
#define	DMA1_REQ_EN_ID   0x760U
#define	DMA0_ITRIG_EN0_ID   0x780U
#define	DMA0_ITRIG_EN1_ID   0x784U
#define	DMA1_ITRIG_EN_ID   0x7A0U
#define	ENA_SHIFT   8U
#define	PMUX_SHIFT   20U

Driver version
#define	FSL_INPUTMUX_DRIVER_VERSION   (MAKE_VERSION(2, 0, 4))
	Group interrupt driver version for SDK.

Enumeration Type Documentation

enum inputmux_connection_t

Enumerator
kINPUTMUX_SctGpioInAToSct0	SCT0 INMUX.
kINPUTMUX_TmprOutToSct0	TIMER0 CAPTSEL.
kINPUTMUX_TmprOutToTimer0Captsel	TIMER0 Trigger.
kINPUTMUX_TmprOutToTimer0Trigger	TIMER1 CAPTSEL.
kINPUTMUX_TmprOutToTimer1Captsel	TIMER1 Trigger.
kINPUTMUX_TmprOutToTimer1Trigger	TIMER2 CAPTSEL.
kINPUTMUX_TmprOutToTimer2Captsel	TIMER2 Trigger.
kINPUTMUX_TmprOutToTimer2Trigger	Pin interrupt select.
kINPUTMUX_GpioPort1Pin31ToPintsel	DMA0 Input trigger.
kINPUTMUX_TmprOutToDma0	DMA0 output trigger.
kINPUTMUX_TmprOutTrigoutToTriginChannels	Selection for frequency measurement reference clock.
kINPUTMUX_Aoi1Out2ToFreqmeasRef	Selection for frequency measurement target clock.
kINPUTMUX_Aoi1Out2ToFreqmeasTarget	TIMER3 CAPTSEL.
kINPUTMUX_TmprOutToTimer3Captsel	TIMER3 Trigger.
kINPUTMUX_TmprOutToTimer3Trigger	Timer4 CAPTSEL.
kINPUTMUX_TmprOutToTimer4Captsel	TIMER4 Trigger.
kINPUTMUX_GpioPort0Pin31ToPintSecsel	DMA1 Input trigger.
kINPUTMUX_TmprOutToDma1	DMA1 output trigger.
kINPUTMUX_Dma1I3c0TxTrigoutToTriginChannels	HSCMP0 trigger.
kINPUTMUX_Dma0Trigout2ToHscmp0Trigger	ADC0 trigger.
kINPUTMUX_Dma0Trigout2ToAdc0Trigger	ADC1 trigger.
kINPUTMUX_Dma0Trigout2ToAdc1Trigger	DAC0 trigger.
kINPUTMUX_Dma0Trigout2ToDac0Trigger	DAC1 trigger.
kINPUTMUX_Dma0Trigout2ToDac1Trigger	DAC2 trigger.
kINPUTMUX_Dma0Trigout2ToDac2Trigger	ENC0 TRIG.
kINPUTMUX_Dma0Trigout2ToEnc0Trigger	ENC0 HOME.
kINPUTMUX_Dma0Trigout2ToEnc0Home	ENC0 INDEX.
kINPUTMUX_Dma0Trigout2ToEnc0Index	ENC0 PHASEB.
kINPUTMUX_Dma0Trigout2ToEnc0Phaseb	ENC0 PHASEA.
kINPUTMUX_Dma0Trigout2ToEnc0Phasea	ENC1 TRIG.
kINPUTMUX_Dma0Trigout2ToEnc1Trigger	ENC1 HOME.
kINPUTMUX_Dma0Trigout2ToEnc1Home	ENC1 INDEX.
kINPUTMUX_Dma0Trigout2ToEnc1Index	ENC1 PHASEB.
kINPUTMUX_Dma0Trigout2ToEnc1Phaseb	ENC1 PHASEA.
kINPUTMUX_Dma0Trigout2ToEnc1Phasea	PWM0 external synchronization trigger.
kINPUTMUX_Dma0Trigout2ToPwm0ExtSyncTrigger	PWM0 input trigger connections trigger.
kINPUTMUX_Dma0Trigout2ToPwm0ExtATrigger	PWM0 external force trigger connections trigger.
kINPUTMUX_Dma0Trigout2ToPwm0ExtForceTrigger	PWM0 fault input trigger connections trigger.
kINPUTMUX_Dma0Trigout2ToPwm0FaultTrigger	PWM0 extclk input trigger connections trigger.
kINPUTMUX_Dma0Trigout2ToPwm0ExtClkTrigger	PWM1 external synchronization trigger.
kINPUTMUX_Dma0Trigout2ToPwm1ExtSyncTrigger	PWM1 input trigger connections trigger.
kINPUTMUX_Dma0Trigout2ToPwm1ExtATrigger	PWM1 external force trigger connections.
kINPUTMUX_Dma0Trigout2ToPwm1ExtForceTrigger	PWM1 fault input trigger connections trigger.
kINPUTMUX_Dma0Trigout2ToPwm1FaultTrigger	PWM1 extclk input trigger connections trigger.
kINPUTMUX_Dma0Trigout2ToPwm1ExtClkTrigger	AOI0 trigger.
kINPUTMUX_Dma1Trigout2ToAoi0InTrigger	AOI1 trigger.
kINPUTMUX_Dma1Trigout2ToAoi1InTrigger	AOI External trigger.
kINPUTMUX_TmprOutToAoiExtTrigger	HSCMP1 trigger.
kINPUTMUX_Dma0Trigout2ToHscmp1Trigger	HSCMP2 trigger.

enum inputmux_signal_t

Enumerator
kINPUTMUX_FlexSpiRxToDmac0Ch0RequestEna	DMA0 REQ(DMA0_REQEN0) signal.
kINPUTMUX_Aoi0Out3ToDmac0Ch31RequestEna	DMA0 REQ(DMA0_REQEN0) signal.
kINPUTMUX_TmprOutToDmac0Ch52RequestEna	DMA1 REQ(DMA1_REQEN) signal.
kINPUTMUX_I3c0TxToDmac1Ch13RequestEna	DMA0 input trigger(DMA0_ITRIGEN0) source enable.
kINPUTMUX_Dmac0InputTriggerAoi0Out3Ena	DMA0 input trigger(DMA0_ITRIGEN1) source enable.
kINPUTMUX_Dmac0InputTriggerTmprOutEna	DMA1 input trigger(DMA1_ITRIGEN) source enable.

Function Documentation

void INPUTMUX_Init

(

INPUTMUX_Type *

base

)

This function enables the INPUTMUX clock.

Parameters

base	Base address of the INPUTMUX peripheral.

Return values

None.

void INPUTMUX_AttachSignal	(	INPUTMUX_Type *	base,
		uint32_t	index,
		inputmux_connection_t	connection
	)

This function gates the INPUTPMUX clock.

Parameters

base	Base address of the INPUTMUX peripheral.
index	Destination peripheral to attach the signal to.
connection	Selects connection.

Return values

None.

void INPUTMUX_EnableSignal	(	INPUTMUX_Type *	base,
		inputmux_signal_t	signal,
		bool	enable
	)

This function gates the INPUTPMUX clock.

Parameters

base	Base address of the INPUTMUX peripheral.
signal	Enable signal register id and bit offset.
enable	Selects enable or disable.

Return values

None.

void INPUTMUX_Deinit

(

INPUTMUX_Type *

base

)

This function disables the INPUTMUX clock.

Parameters

base	Base address of the INPUTMUX peripheral.

Return values

None.