PINT: Pin Interrupt and Pattern Match Driver

Overview

The MCUXpresso SDK provides a driver for the Pin Interrupt and Pattern match (PINT).

It can configure one or more pins to generate a pin interrupt when the pin or pattern match conditions are met. The pins do not have to be configured as GPIO pins however they must be connected to PINT via INPUTMUX. Only the pin interrupt or pattern match function can be active for interrupt generation. If the pin interrupt function is enabled then the pattern match function can be used for wakeup via RXEV.

Pin Interrupt and Pattern match Driver operation

PINT_PinInterruptConfig() function configures the pins for pin interrupt.

PINT_PatternMatchConfig() function configures the pins for pattern match.

Pin Interrupt use case

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

Pattern match use case

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

Files
file	fsl_pint.h

Typedefs
typedef void(*	pint_cb_t )(pint_pin_int_t pintr, uint32_t pmatch_status)
	PINT Callback function. More...

Enumerations
enum	pint_pin_enable_t {   kPINT_PinIntEnableNone = 0U,   kPINT_PinIntEnableRiseEdge = PINT_PIN_RISE_EDGE,   kPINT_PinIntEnableFallEdge = PINT_PIN_FALL_EDGE,   kPINT_PinIntEnableBothEdges = PINT_PIN_BOTH_EDGE,   kPINT_PinIntEnableLowLevel = PINT_PIN_LOW_LEVEL,   kPINT_PinIntEnableHighLevel = PINT_PIN_HIGH_LEVEL }
	PINT Pin Interrupt enable type. More...
enum	pint_pin_int_t { kPINT_PinInt0 = 0U }
	PINT Pin Interrupt type. More...
enum	pint_pmatch_input_src_t {   kPINT_PatternMatchInp0Src = 0U,   kPINT_PatternMatchInp1Src = 1U,   kPINT_PatternMatchInp2Src = 2U,   kPINT_PatternMatchInp3Src = 3U,   kPINT_PatternMatchInp4Src = 4U,   kPINT_PatternMatchInp5Src = 5U,   kPINT_PatternMatchInp6Src = 6U,   kPINT_PatternMatchInp7Src = 7U }
	PINT Pattern Match bit slice input source type. More...
enum	pint_pmatch_bslice_t { kPINT_PatternMatchBSlice0 = 0U }
	PINT Pattern Match bit slice type. More...
enum	pint_pmatch_bslice_cfg_t {   kPINT_PatternMatchAlways = 0U,   kPINT_PatternMatchStickyRise = 1U,   kPINT_PatternMatchStickyFall = 2U,   kPINT_PatternMatchStickyBothEdges = 3U,   kPINT_PatternMatchHigh = 4U,   kPINT_PatternMatchLow = 5U,   kPINT_PatternMatchNever = 6U,   kPINT_PatternMatchBothEdges = 7U }
	PINT Pattern Match configuration type. More...

Functions
void	PINT_Init (PINT_Type *base)
	Initialize PINT peripheral. More...
void	PINT_PinInterruptConfig (PINT_Type *base, pint_pin_int_t intr, pint_pin_enable_t enable, pint_cb_t callback)
	Configure PINT peripheral pin interrupt. More...
void	PINT_PinInterruptGetConfig (PINT_Type *base, pint_pin_int_t pintr, pint_pin_enable_t *enable, pint_cb_t *callback)
	Get PINT peripheral pin interrupt configuration. More...
static void	PINT_PinInterruptClrStatus (PINT_Type *base, pint_pin_int_t pintr)
	Clear Selected pin interrupt status. More...
static uint32_t	PINT_PinInterruptGetStatus (PINT_Type *base, pint_pin_int_t pintr)
	Get Selected pin interrupt status. More...
static void	PINT_PinInterruptClrStatusAll (PINT_Type *base)
	Clear all pin interrupts status. More...
static uint32_t	PINT_PinInterruptGetStatusAll (PINT_Type *base)
	Get all pin interrupts status. More...
static void	PINT_PinInterruptClrFallFlag (PINT_Type *base, pint_pin_int_t pintr)
	Clear Selected pin interrupt fall flag. More...
static uint32_t	PINT_PinInterruptGetFallFlag (PINT_Type *base, pint_pin_int_t pintr)
	Get selected pin interrupt fall flag. More...
static void	PINT_PinInterruptClrFallFlagAll (PINT_Type *base)
	Clear all pin interrupt fall flags. More...
static uint32_t	PINT_PinInterruptGetFallFlagAll (PINT_Type *base)
	Get all pin interrupt fall flags. More...
static void	PINT_PinInterruptClrRiseFlag (PINT_Type *base, pint_pin_int_t pintr)
	Clear Selected pin interrupt rise flag. More...
static uint32_t	PINT_PinInterruptGetRiseFlag (PINT_Type *base, pint_pin_int_t pintr)
	Get selected pin interrupt rise flag. More...
static void	PINT_PinInterruptClrRiseFlagAll (PINT_Type *base)
	Clear all pin interrupt rise flags. More...
static uint32_t	PINT_PinInterruptGetRiseFlagAll (PINT_Type *base)
	Get all pin interrupt rise flags. More...
void	PINT_PatternMatchConfig (PINT_Type *base, pint_pmatch_bslice_t bslice, pint_pmatch_cfg_t *cfg)
	Configure PINT pattern match. More...
void	PINT_PatternMatchGetConfig (PINT_Type *base, pint_pmatch_bslice_t bslice, pint_pmatch_cfg_t *cfg)
	Get PINT pattern match configuration. More...
static uint32_t	PINT_PatternMatchGetStatus (PINT_Type *base, pint_pmatch_bslice_t bslice)
	Get pattern match bit slice status. More...
static uint32_t	PINT_PatternMatchGetStatusAll (PINT_Type *base)
	Get status of all pattern match bit slices. More...
uint32_t	PINT_PatternMatchResetDetectLogic (PINT_Type *base)
	Reset pattern match detection logic. More...
static void	PINT_PatternMatchEnable (PINT_Type *base)
	Enable pattern match function. More...
static void	PINT_PatternMatchDisable (PINT_Type *base)
	Disable pattern match function. More...
static void	PINT_PatternMatchEnableRXEV (PINT_Type *base)
	Enable RXEV output. More...
static void	PINT_PatternMatchDisableRXEV (PINT_Type *base)
	Disable RXEV output. More...
void	PINT_EnableCallback (PINT_Type *base)
	Enable callback. More...
void	PINT_DisableCallback (PINT_Type *base)
	Disable callback. More...
void	PINT_Deinit (PINT_Type *base)
	Deinitialize PINT peripheral. More...

Driver version
#define	FSL_PINT_DRIVER_VERSION   (MAKE_VERSION(2, 0, 0))
	Version 2.0.0.

Typedef Documentation

typedef void(* pint_cb_t)(pint_pin_int_t pintr, uint32_t pmatch_status)

Enumeration Type Documentation

enum pint_pin_enable_t

Enumerator
kPINT_PinIntEnableNone	Do not generate Pin Interrupt.
kPINT_PinIntEnableRiseEdge	Generate Pin Interrupt on rising edge.
kPINT_PinIntEnableFallEdge	Generate Pin Interrupt on falling edge.
kPINT_PinIntEnableBothEdges	Generate Pin Interrupt on both edges.
kPINT_PinIntEnableLowLevel	Generate Pin Interrupt on low level.
kPINT_PinIntEnableHighLevel	Generate Pin Interrupt on high level.

enum pint_pin_int_t

Enumerator
kPINT_PinInt0	Pin Interrupt 0.

enum pint_pmatch_input_src_t

Enumerator
kPINT_PatternMatchInp0Src	Input source 0.
kPINT_PatternMatchInp1Src	Input source 1.
kPINT_PatternMatchInp2Src	Input source 2.
kPINT_PatternMatchInp3Src	Input source 3.
kPINT_PatternMatchInp4Src	Input source 4.
kPINT_PatternMatchInp5Src	Input source 5.
kPINT_PatternMatchInp6Src	Input source 6.
kPINT_PatternMatchInp7Src	Input source 7.

enum pint_pmatch_bslice_t

Enumerator
kPINT_PatternMatchBSlice0	Bit slice 0.

enum pint_pmatch_bslice_cfg_t

Enumerator
kPINT_PatternMatchAlways	Always Contributes to product term match.
kPINT_PatternMatchStickyRise	Sticky Rising edge.
kPINT_PatternMatchStickyFall	Sticky Falling edge.
kPINT_PatternMatchStickyBothEdges	Sticky Rising or Falling edge.
kPINT_PatternMatchHigh	High level.
kPINT_PatternMatchLow	Low level.
kPINT_PatternMatchNever	Never contributes to product term match.
kPINT_PatternMatchBothEdges	Either rising or falling edge.

Function Documentation

void PINT_Init

(

PINT_Type *

base

)

This function initializes the PINT peripheral and enables the clock.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

void PINT_PinInterruptConfig	(	PINT_Type *	base,
		pint_pin_int_t	intr,
		pint_pin_enable_t	enable,
		pint_cb_t	callback
	)

This function configures a given pin interrupt.

Parameters

base	Base address of the PINT peripheral.
intr	Pin interrupt.
enable	Selects detection logic.
callback	Callback.

Return values

None.

void PINT_PinInterruptGetConfig	(	PINT_Type *	base,
		pint_pin_int_t	pintr,
		pint_pin_enable_t *	enable,
		pint_cb_t *	callback
	)

This function returns the configuration of a given pin interrupt.

Parameters

base	Base address of the PINT peripheral.
pintr	Pin interrupt.
enable	Pointer to store the detection logic.
callback	Callback.

Return values

None.

static void PINT_PinInterruptClrStatus ( PINT_Type *  base, pint_pin_int_t  pintr  )

inlinestatic

This function clears the selected pin interrupt status.

Parameters

base	Base address of the PINT peripheral.
pintr	Pin interrupt.

Return values

None.

static uint32_t PINT_PinInterruptGetStatus ( PINT_Type *  base, pint_pin_int_t  pintr  )

inlinestatic

This function returns the selected pin interrupt status.

Parameters

base	Base address of the PINT peripheral.
pintr	Pin interrupt.

Return values

status

= 0 No pin interrupt request. = 1 Selected Pin interrupt request active.

static void PINT_PinInterruptClrStatusAll ( PINT_Type *  base )

inlinestatic

This function clears the status of all pin interrupts.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

static uint32_t PINT_PinInterruptGetStatusAll ( PINT_Type *  base )

inlinestatic

This function returns the status of all pin interrupts.

Parameters

base	Base address of the PINT peripheral.

Return values

status

Each bit position indicates the status of corresponding pin interrupt. = 0 No pin interrupt request. = 1 Pin interrupt request active.

static void PINT_PinInterruptClrFallFlag ( PINT_Type *  base, pint_pin_int_t  pintr  )

inlinestatic

This function clears the selected pin interrupt fall flag.

Parameters

base	Base address of the PINT peripheral.
pintr	Pin interrupt.

Return values

None.

static uint32_t PINT_PinInterruptGetFallFlag ( PINT_Type *  base, pint_pin_int_t  pintr  )

inlinestatic

This function returns the selected pin interrupt fall flag.

Parameters

base	Base address of the PINT peripheral.
pintr	Pin interrupt.

Return values

flag	= 0 Falling edge has not been detected. = 1 Falling edge has been detected.

static void PINT_PinInterruptClrFallFlagAll ( PINT_Type *  base )

inlinestatic

This function clears the fall flag for all pin interrupts.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

static uint32_t PINT_PinInterruptGetFallFlagAll ( PINT_Type *  base )

inlinestatic

This function returns the fall flag of all pin interrupts.

Parameters

base	Base address of the PINT peripheral.

Return values

flags

Each bit position indicates the falling edge detection of the corresponding pin interrupt. 0 Falling edge has not been detected. = 1 Falling edge has been detected.

static void PINT_PinInterruptClrRiseFlag ( PINT_Type *  base, pint_pin_int_t  pintr  )

inlinestatic

This function clears the selected pin interrupt rise flag.

Parameters

base	Base address of the PINT peripheral.
pintr	Pin interrupt.

Return values

None.

static uint32_t PINT_PinInterruptGetRiseFlag ( PINT_Type *  base, pint_pin_int_t  pintr  )

inlinestatic

This function returns the selected pin interrupt rise flag.

Parameters

base	Base address of the PINT peripheral.
pintr	Pin interrupt.

Return values

flag	= 0 Rising edge has not been detected. = 1 Rising edge has been detected.

static void PINT_PinInterruptClrRiseFlagAll ( PINT_Type *  base )

inlinestatic

This function clears the rise flag for all pin interrupts.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

static uint32_t PINT_PinInterruptGetRiseFlagAll ( PINT_Type *  base )

inlinestatic

This function returns the rise flag of all pin interrupts.

Parameters

base	Base address of the PINT peripheral.

Return values

flags

Each bit position indicates the rising edge detection of the corresponding pin interrupt. 0 Rising edge has not been detected. = 1 Rising edge has been detected.

void PINT_PatternMatchConfig	(	PINT_Type *	base,
		pint_pmatch_bslice_t	bslice,
		pint_pmatch_cfg_t *	cfg
	)

This function configures a given pattern match bit slice.

Parameters

base	Base address of the PINT peripheral.
bslice	Pattern match bit slice number.
cfg	Pointer to bit slice configuration.

Return values

None.

void PINT_PatternMatchGetConfig	(	PINT_Type *	base,
		pint_pmatch_bslice_t	bslice,
		pint_pmatch_cfg_t *	cfg
	)

This function returns the configuration of a given pattern match bit slice.

Parameters

base	Base address of the PINT peripheral.
bslice	Pattern match bit slice number.
cfg	Pointer to bit slice configuration.

Return values

None.

static uint32_t PINT_PatternMatchGetStatus ( PINT_Type *  base, pint_pmatch_bslice_t  bslice  )

inlinestatic

This function returns the status of selected bit slice.

Parameters

base	Base address of the PINT peripheral.
bslice	Pattern match bit slice number.

Return values

status

= 0 Match has not been detected. = 1 Match has been detected.

static uint32_t PINT_PatternMatchGetStatusAll ( PINT_Type *  base )

inlinestatic

This function returns the status of all bit slices.

Parameters

base	Base address of the PINT peripheral.

Return values

status

Each bit position indicates the match status of corresponding bit slice. = 0 Match has not been detected. = 1 Match has been detected.

uint32_t PINT_PatternMatchResetDetectLogic

(

PINT_Type *

base

)

This function resets the pattern match detection logic if any of the product term is matching.

Parameters

base	Base address of the PINT peripheral.

Return values

pmstatus

Each bit position indicates the match status of corresponding bit slice. = 0 Match was detected. = 1 Match was not detected.

static void PINT_PatternMatchEnable ( PINT_Type *  base )

inlinestatic

This function enables the pattern match function.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

static void PINT_PatternMatchDisable ( PINT_Type *  base )

inlinestatic

This function disables the pattern match function.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

static void PINT_PatternMatchEnableRXEV ( PINT_Type *  base )

inlinestatic

This function enables the pattern match RXEV output.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

static void PINT_PatternMatchDisableRXEV ( PINT_Type *  base )

inlinestatic

This function disables the pattern match RXEV output.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

void PINT_EnableCallback

(

PINT_Type *

base

)

This function enables the interrupt for the selected PINT peripheral. Although the pin(s) are monitored as soon as they are enabled, the callback function is not enabled until this function is called.

Parameters

base	Base address of the PINT peripheral.

Return values

None.

void PINT_DisableCallback

(

PINT_Type *

base

)

This function disables the interrupt for the selected PINT peripheral. Although the pins are still being monitored but the callback function is not called.

Parameters

base	Base address of the peripheral.

Return values

None.

void PINT_Deinit

(

PINT_Type *

base

)

This function disables the PINT clock.

Parameters

base	Base address of the PINT peripheral.

Return values

None.