PORT: Port Control and Interrupts

Overview

The MCUXpresso SDK provides a driver for the Port Control and Interrupts (PORT) module of MCUXpresso SDK devices.

Enumerations
enum	port_interrupt_t {   kPORT_InterruptOrDMADisabled = 0x0U,   kPORT_DMARisingEdge = 0x1U,   kPORT_DMAFallingEdge = 0x2U,   kPORT_DMAEitherEdge = 0x3U,   kPORT_FlagRisingEdge = 0x05U,   kPORT_FlagFallingEdge = 0x06U,   kPORT_FlagEitherEdge = 0x07U,   kPORT_InterruptLogicZero = 0x8U,   kPORT_InterruptRisingEdge = 0x9U,   kPORT_InterruptFallingEdge = 0xAU,   kPORT_InterruptEitherEdge = 0xBU,   kPORT_InterruptLogicOne = 0xCU,   kPORT_ActiveHighTriggerOutputEnable = 0xDU,   kPORT_ActiveLowTriggerOutputEnable = 0xEU }
	Configures the interrupt generation condition. More...

Driver version
#define	FSL_PORT_DRIVER_VERSION   (MAKE_VERSION(2, 5, 0))
	PORT driver version. More...

Interrupt
static void	PORT_SetPinInterruptConfig (PORT_Type *base, uint32_t pin, port_interrupt_t config)
	Configures the port pin interrupt/DMA request. More...
static uint32_t	PORT_GetPinsInterruptFlags (PORT_Type *base)
	Reads the whole port status flag. More...
static void	PORT_ClearPinsInterruptFlags (PORT_Type *base, uint32_t mask)
	Clears the multiple pin interrupt status flag. More...

Macro Definition Documentation

#define FSL_PORT_DRIVER_VERSION   (MAKE_VERSION(2, 5, 0))

Enumeration Type Documentation

enum port_interrupt_t

Enumerator
kPORT_InterruptOrDMADisabled	Interrupt/DMA request is disabled.
kPORT_DMARisingEdge	DMA request on rising edge.
kPORT_DMAFallingEdge	DMA request on falling edge.
kPORT_DMAEitherEdge	DMA request on either edge.
kPORT_FlagRisingEdge	Flag sets on rising edge.
kPORT_FlagFallingEdge	Flag sets on falling edge.
kPORT_FlagEitherEdge	Flag sets on either edge.
kPORT_InterruptLogicZero	Interrupt when logic zero.
kPORT_InterruptRisingEdge	Interrupt on rising edge.
kPORT_InterruptFallingEdge	Interrupt on falling edge.
kPORT_InterruptEitherEdge	Interrupt on either edge.
kPORT_InterruptLogicOne	Interrupt when logic one.
kPORT_ActiveHighTriggerOutputEnable	Enable active high-trigger output.
kPORT_ActiveLowTriggerOutputEnable	Enable active low-trigger output.

Function Documentation

static void PORT_SetPinInterruptConfig ( PORT_Type *  base, uint32_t  pin, port_interrupt_t  config  )

inlinestatic

Parameters

base	PORT peripheral base pointer.
pin	PORT pin number.
config	PORT pin interrupt configuration. kPORT_InterruptOrDMADisabled: Interrupt/DMA request disabled. kPORT_DMARisingEdge : DMA request on rising edge(if the DMA requests exit). kPORT_DMAFallingEdge: DMA request on falling edge(if the DMA requests exit). kPORT_DMAEitherEdge : DMA request on either edge(if the DMA requests exit). kPORT_FlagRisingEdge : Flag sets on rising edge(if the Flag states exit). kPORT_FlagFallingEdge : Flag sets on falling edge(if the Flag states exit). kPORT_FlagEitherEdge : Flag sets on either edge(if the Flag states exit). kPORT_InterruptLogicZero : Interrupt when logic zero. kPORT_InterruptRisingEdge : Interrupt on rising edge. kPORT_InterruptFallingEdge: Interrupt on falling edge. kPORT_InterruptEitherEdge : Interrupt on either edge. kPORT_InterruptLogicOne : Interrupt when logic one. kPORT_ActiveHighTriggerOutputEnable : Enable active high-trigger output (if the trigger states exit). kPORT_ActiveLowTriggerOutputEnable : Enable active low-trigger output (if the trigger states exit).

static uint32_t PORT_GetPinsInterruptFlags ( PORT_Type *  base )

inlinestatic

If a pin is configured to generate the DMA request, the corresponding flag is cleared automatically at the completion of the requested DMA transfer. Otherwise, the flag remains set until a logic one is written to that flag. If configured for a level sensitive interrupt that remains asserted, the flag is set again immediately.

Parameters

base	PORT peripheral base pointer.

Returns

Current port interrupt status flags, for example, 0x00010001 means the pin 0 and 16 have the interrupt.

static void PORT_ClearPinsInterruptFlags ( PORT_Type *  base, uint32_t  mask  )

inlinestatic

Parameters

base	PORT peripheral base pointer.
mask	PORT pin number macro.