Data Structures
struct	i3c_slave_config_t
	Structure with settings to initialize the I3C slave module. More...

struct	i3c_slave_transfer_t
	I3C slave transfer structure. More...

struct	i3c_slave_handle_t
	I3C slave handle structure. More...

Typedefs
typedef void(*	i3c_slave_transfer_callback_t )(I3C_Type base, i3c_slave_transfer_t transfer, void *userData)
	Slave event callback function pointer type. More...

Enumerations
enum	_i3c_slave_flags { kI3C_SlaveNotStopFlag = I3C_SSTATUS_STNOTSTOP_MASK, kI3C_SlaveMessageFlag = I3C_SSTATUS_STMSG_MASK, kI3C_SlaveRequiredReadFlag = I3C_SSTATUS_STREQRD_MASK, kI3C_SlaveRequiredWriteFlag = I3C_SSTATUS_STREQWR_MASK, kI3C_SlaveBusDAAFlag = I3C_SSTATUS_STDAA_MASK, kI3C_SlaveBusHDRModeFlag = I3C_SSTATUS_STHDR_MASK, kI3C_SlaveBusStartFlag = I3C_SSTATUS_START_MASK, kI3C_SlaveMatchedFlag = I3C_SSTATUS_MATCHED_MASK, kI3C_SlaveBusStopFlag = I3C_SSTATUS_STOP_MASK, kI3C_SlaveRxReadyFlag = I3C_SSTATUS_RX_PEND_MASK, kI3C_SlaveTxReadyFlag = I3C_SSTATUS_TXNOTFULL_MASK, kI3C_SlaveDynamicAddrChangedFlag, kI3C_SlaveReceivedCCCFlag = I3C_SSTATUS_CCC_MASK, kI3C_SlaveErrorFlag = I3C_SSTATUS_ERRWARN_MASK, kI3C_SlaveHDRCommandMatchFlag = I3C_SSTATUS_HDRMATCH_MASK, kI3C_SlaveCCCHandledFlag, kI3C_SlaveEventSentFlag = I3C_SSTATUS_EVENT_MASK, kI3C_SlaveIbiDisableFlag = I3C_SSTATUS_IBIDIS_MASK, kI3C_SlaveMasterRequestDisabledFlag = I3C_SSTATUS_MRDIS_MASK, kI3C_SlaveHotJoinDisabledFlag = I3C_SSTATUS_HJDIS_MASK }
	I3C slave peripheral flags. More...

enum	_i3c_slave_error_flags { kI3C_SlaveErrorOverrunFlag = I3C_SERRWARN_ORUN_MASK, kI3C_SlaveErrorUnderrunFlag = I3C_SERRWARN_URUN_MASK, kI3C_SlaveErrorUnderrunNakFlag, kI3C_SlaveErrorTermFlag = I3C_SERRWARN_TERM_MASK, kI3C_SlaveErrorInvalidStartFlag = I3C_SERRWARN_INVSTART_MASK, kI3C_SlaveErrorSdrParityFlag = I3C_SERRWARN_SPAR_MASK, kI3C_SlaveErrorHdrParityFlag = I3C_SERRWARN_HPAR_MASK, kI3C_SlaveErrorHdrCRCFlag = I3C_SERRWARN_HCRC_MASK, kI3C_SlaveErrorS0S1Flag = I3C_SERRWARN_S0S1_MASK, kI3C_SlaveErrorOverreadFlag = I3C_SERRWARN_OREAD_MASK, kI3C_SlaveErrorOverwriteFlag = I3C_SERRWARN_OWRITE_MASK }
	I3C slave error flags to indicate the causes. More...

enum	i3c_slave_event_t { kI3C_SlaveEventNormal = 0U, kI3C_SlaveEventIBI = 1U, kI3C_SlaveEventMasterReq = 2U, kI3C_SlaveEventHotJoinReq = 3U }
	I3C slave.event. More...

enum	i3c_slave_activity_state_t { kI3C_SlaveNoLatency = 0U, kI3C_SlaveLatency1Ms = 1U, kI3C_SlaveLatency100Ms = 2U, kI3C_SlaveLatency10S = 3U }

enum	i3c_slave_transfer_event_t { kI3C_SlaveAddressMatchEvent = 0x01U, kI3C_SlaveTransmitEvent = 0x02U, kI3C_SlaveReceiveEvent = 0x04U, kI3C_SlaveRequiredTransmitEvent = 0x08U, kI3C_SlaveStartEvent = 0x10U, kI3C_SlaveHDRCommandMatchEvent = 0x20U, kI3C_SlaveCompletionEvent = 0x40U, kI3C_SlaveAllEvents }
	Set of events sent to the callback for non blocking slave transfers. More...

Initialization and deinitialization
void	I3C_SlaveGetDefaultConfig (i3c_slave_config_t *slaveConfig)
	Provides a default configuration for the I3C slave peripheral. More...

void	I3C_SlaveInit (I3C_Type base, const i3c_slave_config_t slaveConfig, uint32_t slowClock_Hz)
	Initializes the I3C slave peripheral. More...

void	I3C_SlaveDeinit (I3C_Type *base)
	Deinitializes the I3C slave peripheral. More...

Status
static uint32_t	I3C_SlaveGetStatusFlags (I3C_Type *base)
	Gets the I3C slave status flags. More...

static void	I3C_SlaveClearStatusFlags (I3C_Type *base, uint32_t statusMask)
	Clears the I3C slave status flag state. More...

static uint32_t	I3C_SlaveGetErrorStatusFlags (I3C_Type *base)
	Gets the I3C slave error status flags. More...

static void	I3C_SlaveClearErrorStatusFlags (I3C_Type *base, uint32_t statusMask)
	Clears the I3C slave error status flag state. More...

i3c_slave_activity_state_t	I3C_SlaveGetActivityState (I3C_Type *base)
	Gets the I3C slave state. More...

Interrupts
static void	I3C_SlaveEnableInterrupts (I3C_Type *base, uint32_t interruptMask)
	Enables the I3C slave interrupt requests. More...

static void	I3C_SlaveDisableInterrupts (I3C_Type *base, uint32_t interruptMask)
	Disables the I3C slave interrupt requests. More...

static uint32_t	I3C_SlaveGetEnabledInterrupts (I3C_Type *base)
	Returns the set of currently enabled I3C slave interrupt requests. More...

static uint32_t	I3C_SlaveGetPendingInterrupts (I3C_Type *base)
	Returns the set of pending I3C slave interrupt requests. More...

DMA control
static void	I3C_SlaveEnableDMA (I3C_Type *base, bool enableTx, bool enableRx, uint32_t width)
	Enables or disables I3C slave DMA requests. More...

static uint32_t	I3C_SlaveGetTxFifoAddress (I3C_Type *base, uint32_t width)
	Gets I3C slave transmit data register address for DMA transfer. More...

static uint32_t	I3C_SlaveGetRxFifoAddress (I3C_Type *base, uint32_t width)
	Gets I3C slave receive data register address for DMA transfer. More...

FIFO control
static void	I3C_SlaveSetWatermarks (I3C_Type *base, i3c_tx_trigger_level_t txLvl, i3c_rx_trigger_level_t rxLvl, bool flushTx, bool flushRx)
	Sets the watermarks for I3C slave FIFOs. More...

static void	I3C_SlaveGetFifoCounts (I3C_Type base, size_t rxCount, size_t *txCount)
	Gets the current number of bytes in the I3C slave FIFOs. More...

Bus operations
void	I3C_SlaveRequestEvent (I3C_Type *base, i3c_slave_event_t event, uint8_t data)
	I3C slave request event. More...

status_t	I3C_SlaveSend (I3C_Type base, const void txBuff, size_t txSize)
	Performs a polling send transfer on the I3C bus. More...

status_t	I3C_SlaveReceive (I3C_Type base, void rxBuff, size_t rxSize)
	Performs a polling receive transfer on the I3C bus. More...

Slave non-blocking
void	I3C_SlaveTransferCreateHandle (I3C_Type base, i3c_slave_handle_t handle, i3c_slave_transfer_callback_t callback, void *userData)
	Creates a new handle for the I3C slave non-blocking APIs. More...

status_t	I3C_SlaveTransferNonBlocking (I3C_Type base, i3c_slave_handle_t handle, uint32_t eventMask)
	Starts accepting slave transfers. More...

status_t	I3C_SlaveTransferGetCount (I3C_Type base, i3c_slave_handle_t handle, size_t *count)
	Gets the slave transfer status during a non-blocking transfer. More...

void	I3C_SlaveTransferAbort (I3C_Type base, i3c_slave_handle_t handle)
	Aborts the slave non-blocking transfers. More...

Slave IRQ handler
void	I3C_SlaveTransferHandleIRQ (I3C_Type base, i3c_slave_handle_t handle)
	Reusable routine to handle slave interrupts. More...

Detailed Description

Data Structure Documentation

struct i3c_slave_config_t

This structure holds configuration settings for the I3C peripheral. To initialize this structure to reasonable defaults, call the I3C_SlaveGetDefaultConfig() function and pass a pointer to your configuration structure instance.

The configuration structure can be made constant so it resides in flash.

Data Fields
bool	enableSlave
	Whether to enable slave. More...

uint8_t	staticAddr
	Static address. More...

uint16_t	vendorID
	Device vendor ID(manufacture ID). More...

bool	enableRandomPart
	Whether to generate random part number, if using random part number, the partNumber variable setting is meaningless. More...

uint32_t	partNumber
	Device part number info.

uint8_t	dcr
	Device characteristics register information. More...

uint8_t	bcr
	Bus characteristics register information. More...

uint8_t	hdrMode
	Support hdr mode, could be OR logic in #i3c_hdr_mode. More...

bool	nakAllRequest
	Whether to reply NAK to all requests except broadcast CCC. More...

bool	ignoreS0S1Error
	Whether to ignore S0/S1 error in SDR mode. More...

bool	offline
	Whether to wait 60 us of bus quiet or HDR request to ensure slave track SDR mode safely. More...

bool	matchSlaveStartStop
	Whether to assert start/stop status only the time slave is addressed. More...

Field Documentation

bool i3c_slave_config_t::enableSlave

uint8_t i3c_slave_config_t::staticAddr

uint16_t i3c_slave_config_t::vendorID

bool i3c_slave_config_t::enableRandomPart

uint8_t i3c_slave_config_t::dcr

uint8_t i3c_slave_config_t::bcr

uint8_t i3c_slave_config_t::hdrMode

bool i3c_slave_config_t::nakAllRequest

bool i3c_slave_config_t::ignoreS0S1Error

bool i3c_slave_config_t::offline

bool i3c_slave_config_t::matchSlaveStartStop

struct i3c_slave_transfer_t

Data Fields
uint32_t	event
	Reason the callback is being invoked. More...

uint8_t *	txData
	Transfer buffer.

size_t	txDataSize
	Transfer size.

uint8_t *	rxData
	Transfer buffer.

size_t	rxDataSize
	Transfer size.

status_t	completionStatus
	Success or error code describing how the transfer completed. More...

size_t	transferredCount
	Number of bytes actually transferred since start or last repeated start. More...

Field Documentation

uint32_t i3c_slave_transfer_t::event

status_t i3c_slave_transfer_t::completionStatus

Only applies for kI3C_SlaveCompletionEvent.

size_t i3c_slave_transfer_t::transferredCount

struct _i3c_slave_handle

Note: The contents of this structure are private and subject to change.

Data Fields
i3c_slave_transfer_t	transfer
	I3C slave transfer copy. More...

bool	isBusy
	Whether transfer is busy. More...

bool	wasTransmit
	Whether the last transfer was a transmit. More...

uint32_t	eventMask
	Mask of enabled events. More...

uint32_t	transferredCount
	Count of bytes transferred. More...

i3c_slave_transfer_callback_t	callback
	Callback function called at transfer event. More...

void *	userData
	Callback parameter passed to callback. More...

Field Documentation

i3c_slave_transfer_t i3c_slave_handle_t::transfer

bool i3c_slave_handle_t::isBusy

bool i3c_slave_handle_t::wasTransmit

uint32_t i3c_slave_handle_t::eventMask

uint32_t i3c_slave_handle_t::transferredCount

i3c_slave_transfer_callback_t i3c_slave_handle_t::callback

void* i3c_slave_handle_t::userData

Typedef Documentation

typedef void(* i3c_slave_transfer_callback_t)(I3C_Type *base, i3c_slave_transfer_t *transfer, void *userData)

This callback is used only for the slave non-blocking transfer API. To install a callback, use the I3C_SlaveSetCallback() function after you have created a handle.

Parameters

base	Base address for the I3C instance on which the event occurred.
transfer	Pointer to transfer descriptor containing values passed to and/or from the callback.
userData	Arbitrary pointer-sized value passed from the application.

Enumeration Type Documentation

enum _i3c_slave_flags

The following status register flags can be cleared:

Only below flags can be enabled as interrupts.

Note: These enums are meant to be OR'd together to form a bit mask.

Enumerator
kI3C_SlaveNotStopFlag	Slave status not stop flag.
kI3C_SlaveMessageFlag	Slave status message, indicating slave is listening to the bus traffic or responding.
kI3C_SlaveRequiredReadFlag	Slave status required, either is master doing SDR read from slave, or is IBI pushing out.
kI3C_SlaveRequiredWriteFlag	Slave status request write, master is doing SDR write to slave, except slave in ENTDAA mode.
kI3C_SlaveBusDAAFlag	I3C bus is in ENTDAA mode.
kI3C_SlaveBusHDRModeFlag	I3C bus is in HDR mode.
kI3C_SlaveBusStartFlag	Start/Re-start event is seen since the bus was last cleared.
kI3C_SlaveMatchedFlag	Slave address(dynamic/static) matched since last cleared.
kI3C_SlaveBusStopFlag	Stop event is seen since the bus was last cleared.
kI3C_SlaveRxReadyFlag	Rx data ready in rx buffer flag.
kI3C_SlaveTxReadyFlag	Tx buffer ready for Tx data flag.
kI3C_SlaveDynamicAddrChangedFlag	Slave dynamic address has been assigned, re-assigned, or lost.
kI3C_SlaveReceivedCCCFlag	Slave received Common command code.
kI3C_SlaveErrorFlag	Error occurred flag.
kI3C_SlaveHDRCommandMatchFlag	High data rate command match.
kI3C_SlaveCCCHandledFlag	Slave received Common command code is handled by I3C module.
kI3C_SlaveEventSentFlag	Slave IBI/P2P/MR/HJ event has been sent.
kI3C_SlaveIbiDisableFlag	Slave in band interrupt is disabled.
kI3C_SlaveMasterRequestDisabledFlag	Slave master request is disabled.
kI3C_SlaveHotJoinDisabledFlag	Slave Hot-Join is disabled.

enum _i3c_slave_error_flags

Note: These enums are meant to be OR'd together to form a bit mask.

Enumerator
kI3C_SlaveErrorOverrunFlag	Slave internal from-bus buffer/FIFO overrun.
kI3C_SlaveErrorUnderrunFlag	Slave internal to-bus buffer/FIFO underrun.
kI3C_SlaveErrorUnderrunNakFlag	Slave internal from-bus buffer/FIFO underrun and NACK error.
kI3C_SlaveErrorTermFlag	Terminate error from master.
kI3C_SlaveErrorInvalidStartFlag	Slave invalid start flag.
kI3C_SlaveErrorSdrParityFlag	SDR parity error.
kI3C_SlaveErrorHdrParityFlag	HDR parity error.
kI3C_SlaveErrorHdrCRCFlag	HDR-DDR CRC error.
kI3C_SlaveErrorS0S1Flag	S0 or S1 error.
kI3C_SlaveErrorOverreadFlag	Over-read error.
kI3C_SlaveErrorOverwriteFlag	Over-write error.

enum i3c_slave_event_t

Enumerator
kI3C_SlaveEventNormal	Normal mode.
kI3C_SlaveEventIBI	In band interrupt event.
kI3C_SlaveEventMasterReq	Master request event.
kI3C_SlaveEventHotJoinReq	Hot-join event.

enum i3c_slave_activity_state_t

Enumerator
kI3C_SlaveNoLatency	Normal bus operation.
kI3C_SlaveLatency1Ms	1ms of latency.
kI3C_SlaveLatency100Ms	100ms of latency.
kI3C_SlaveLatency10S	10s latency.

enum i3c_slave_transfer_event_t

These event enumerations are used for two related purposes. First, a bit mask created by OR'ing together events is passed to I3C_SlaveTransferNonBlocking() in order to specify which events to enable. Then, when the slave callback is invoked, it is passed the current event through its transfer parameter.

Note: These enumerations are meant to be OR'd together to form a bit mask of events.

Enumerator
kI3C_SlaveAddressMatchEvent	Received the slave address after a start or repeated start.
kI3C_SlaveTransmitEvent	Callback is requested to provide data to transmit (slave-transmitter role).
kI3C_SlaveReceiveEvent	Callback is requested to provide a buffer in which to place received data (slave-receiver role).
kI3C_SlaveRequiredTransmitEvent	Callback is requested to provide a buffer in which to place received data (slave-receiver role).
kI3C_SlaveStartEvent	A start/repeated start was detected.
kI3C_SlaveHDRCommandMatchEvent	Slave Match HDR Command.
kI3C_SlaveCompletionEvent	A stop was detected, completing the transfer.
kI3C_SlaveAllEvents	Bit mask of all available events.

Function Documentation

void I3C_SlaveGetDefaultConfig ( i3c_slave_config_t * slaveConfig )

This function provides the following default configuration for the I3C slave peripheral:

* slaveConfig->enableslave = true;

*

After calling this function, you can override any settings in order to customize the configuration, prior to initializing the slave driver with I3C_SlaveInit().

Parameters

[out] slaveConfig User provided configuration structure for default values. Refer to i3c_slave_config_t.

void I3C_SlaveInit	(	I3C_Type *	base,
		const i3c_slave_config_t *	slaveConfig,
		uint32_t	slowClock_Hz
	)

This function enables the peripheral clock and initializes the I3C slave peripheral as described by the user provided configuration.

Parameters

base	The I3C peripheral base address.
slaveConfig	User provided peripheral configuration. Use I3C_SlaveGetDefaultConfig() to get a set of defaults that you can override.
slowClock_Hz	Frequency in Hertz of the I3C slow clock. Used to calculate the bus match condition values.

void I3C_SlaveDeinit ( I3C_Type * base )

This function disables the I3C slave peripheral and gates the clock.

Parameters

base	The I3C peripheral base address.

static uint32_t I3C_SlaveGetStatusFlags ( I3C_Type * base )

inlinestatic

A bit mask with the state of all I3C slave status flags is returned. For each flag, the corresponding bit in the return value is set if the flag is asserted.

Parameters

base	The I3C peripheral base address.

Returns

State of the status flags:

1: related status flag is set.
0: related status flag is not set.

See Also: _i3c_slave_flags

static void I3C_SlaveClearStatusFlags	(	I3C_Type *	base,
		uint32_t	statusMask
	)

inlinestatic

The following status register flags can be cleared:

Attempts to clear other flags has no effect.

Parameters

base	The I3C peripheral base address.
statusMask	A bitmask of status flags that are to be cleared. The mask is composed of _i3c_slave_flags enumerators OR'd together. You may pass the result of a previous call to I3C_SlaveGetStatusFlags().

See Also: _i3c_slave_flags.

static uint32_t I3C_SlaveGetErrorStatusFlags ( I3C_Type * base )

inlinestatic

A bit mask with the state of all I3C slave error status flags is returned. For each flag, the corresponding bit in the return value is set if the flag is asserted.

Parameters

base	The I3C peripheral base address.

Returns

State of the error status flags:

1: related status flag is set.
0: related status flag is not set.

See Also: _i3c_slave_error_flags

static void I3C_SlaveClearErrorStatusFlags	(	I3C_Type *	base,
		uint32_t	statusMask
	)

inlinestatic

Parameters

base	The I3C peripheral base address.
statusMask	A bitmask of error status flags that are to be cleared. The mask is composed of _i3c_slave_error_flags enumerators OR'd together. You may pass the result of a previous call to I3C_SlaveGetErrorStatusFlags().

See Also: _i3c_slave_error_flags.

i3c_slave_activity_state_t I3C_SlaveGetActivityState ( I3C_Type * base )

Parameters

base	The I3C peripheral base address.

Returns: I3C slave activity state, refer i3c_slave_activity_state_t.

static void I3C_SlaveEnableInterrupts	(	I3C_Type *	base,
		uint32_t	interruptMask
	)

inlinestatic

Only below flags can be enabled as interrupts.

Parameters

base	The I3C peripheral base address.
interruptMask	Bit mask of interrupts to enable. See _i3c_slave_flags for the set of constants that should be OR'd together to form the bit mask.

static void I3C_SlaveDisableInterrupts	(	I3C_Type *	base,
		uint32_t	interruptMask
	)

inlinestatic

Only below flags can be disabled as interrupts.

Parameters

base	The I3C peripheral base address.
interruptMask	Bit mask of interrupts to disable. See _i3c_slave_flags for the set of constants that should be OR'd together to form the bit mask.

static uint32_t I3C_SlaveGetEnabledInterrupts ( I3C_Type * base )

inlinestatic

Parameters

base	The I3C peripheral base address.

Returns: A bitmask composed of _i3c_slave_flags enumerators OR'd together to indicate the set of enabled interrupts.

static uint32_t I3C_SlaveGetPendingInterrupts ( I3C_Type * base )

inlinestatic

Parameters

base	The I3C peripheral base address.

Returns: A bitmask composed of _i3c_slave_flags enumerators OR'd together to indicate the set of pending interrupts.

static void I3C_SlaveEnableDMA	(	I3C_Type *	base,
		bool	enableTx,
		bool	enableRx,
		uint32_t	width
	)

inlinestatic

Parameters

base	The I3C peripheral base address.
enableTx	Enable flag for transmit DMA request. Pass true for enable, false for disable.
enableRx	Enable flag for receive DMA request. Pass true for enable, false for disable.
width	DMA read/write unit in bytes.

static uint32_t I3C_SlaveGetTxFifoAddress	(	I3C_Type *	base,
		uint32_t	width
	)

inlinestatic

Parameters

base	The I3C peripheral base address.
width	DMA read/write unit in bytes.

Returns: The I3C Slave Transmit Data Register address.

static uint32_t I3C_SlaveGetRxFifoAddress	(	I3C_Type *	base,
		uint32_t	width
	)

inlinestatic

Parameters

base	The I3C peripheral base address.
width	DMA read/write unit in bytes.

Returns: The I3C Slave Receive Data Register address.

static void I3C_SlaveSetWatermarks	(	I3C_Type *	base,
		i3c_tx_trigger_level_t	txLvl,
		i3c_rx_trigger_level_t	rxLvl,
		bool	flushTx,
		bool	flushRx
	)

inlinestatic

Parameters

base	The I3C peripheral base address.
txLvl	Transmit FIFO watermark level. The kI3C_SlaveTxReadyFlag flag is set whenever the number of words in the transmit FIFO reaches txLvl.
rxLvl	Receive FIFO watermark level. The kI3C_SlaveRxReadyFlag flag is set whenever the number of words in the receive FIFO reaches rxLvl.
flushTx	true if TX FIFO is to be cleared, otherwise TX FIFO remains unchanged.
flushRx	true if RX FIFO is to be cleared, otherwise RX FIFO remains unchanged.

static void I3C_SlaveGetFifoCounts	(	I3C_Type *	base,
		size_t *	rxCount,
		size_t *	txCount
	)

inlinestatic

Parameters

	base	The I3C peripheral base address.
[out]	txCount	Pointer through which the current number of bytes in the transmit FIFO is returned. Pass NULL if this value is not required.
[out]	rxCount	Pointer through which the current number of bytes in the receive FIFO is returned. Pass NULL if this value is not required.

void I3C_SlaveRequestEvent	(	I3C_Type *	base,
		i3c_slave_event_t	event,
		uint8_t	data
	)

Parameters

base	The I3C peripheral base address.
event	I3C slave event of type i3c_slave_event_t
data	IBI data if In-band interrupt has data, only applicable for event type kI3C_SlaveEventIBI

status_t I3C_SlaveSend	(	I3C_Type *	base,
		const void *	txBuff,
		size_t	txSize
	)

Parameters

base	The I3C peripheral base address.
txBuff	The pointer to the data to be transferred.
txSize	The length in bytes of the data to be transferred.

Returns: Error or success status returned by API.

status_t I3C_SlaveReceive	(	I3C_Type *	base,
		void *	rxBuff,
		size_t	rxSize
	)

Parameters

base	The I3C peripheral base address.
rxBuff	The pointer to the data to be transferred.
rxSize	The length in bytes of the data to be transferred.

Returns: Error or success status returned by API.

void I3C_SlaveTransferCreateHandle	(	I3C_Type *	base,
		i3c_slave_handle_t *	handle,
		i3c_slave_transfer_callback_t	callback,
		void *	userData
	)

The creation of a handle is for use with the non-blocking APIs. Once a handle is created, there is not a corresponding destroy handle. If the user wants to terminate a transfer, the I3C_SlaveTransferAbort() API shall be called.

Note: The function also enables the NVIC IRQ for the input I3C. Need to notice that on some SoCs the I3C IRQ is connected to INTMUX, in this case user needs to enable the associated INTMUX IRQ in application.

Parameters

	base	The I3C peripheral base address.
[out]	handle	Pointer to the I3C slave driver handle.
	callback	User provided pointer to the asynchronous callback function.
	userData	User provided pointer to the application callback data.

status_t I3C_SlaveTransferNonBlocking	(	I3C_Type *	base,
		i3c_slave_handle_t *	handle,
		uint32_t	eventMask
	)

Call this API after calling I2C_SlaveInit() and I3C_SlaveTransferCreateHandle() to start processing transactions driven by an I2C master. The slave monitors the I2C bus and pass events to the callback that was passed into the call to I3C_SlaveTransferCreateHandle(). The callback is always invoked from the interrupt context.

The set of events received by the callback is customizable. To do so, set the eventMask parameter to the OR'd combination of i3c_slave_transfer_event_t enumerators for the events you wish to receive. The kI3C_SlaveTransmitEvent and kI3C_SlaveReceiveEvent events are always enabled and do not need to be included in the mask. Alternatively, you can pass 0 to get a default set of only the transmit and receive events that are always enabled. In addition, the kI3C_SlaveAllEvents constant is provided as a convenient way to enable all events.

Parameters

base	The I3C peripheral base address.
handle	Pointer to #i3c_slave_handle_t structure which stores the transfer state.
eventMask	Bit mask formed by OR'ing together i3c_slave_transfer_event_t enumerators to specify which events to send to the callback. Other accepted values are 0 to get a default set of only the transmit and receive events, and kI3C_SlaveAllEvents to enable all events.

Return values

#kStatus_Success	Slave transfers were successfully started.
kStatus_I3C_Busy	Slave transfers have already been started on this handle.

status_t I3C_SlaveTransferGetCount	(	I3C_Type *	base,
		i3c_slave_handle_t *	handle,
		size_t *	count
	)

Parameters

	base	The I3C peripheral base address.
	handle	Pointer to i2c_slave_handle_t structure.
[out]	count	Pointer to a value to hold the number of bytes transferred. May be NULL if the count is not required.

Return values

#kStatus_Success
#kStatus_NoTransferInProgress

void I3C_SlaveTransferAbort	(	I3C_Type *	base,
		i3c_slave_handle_t *	handle
	)

Note: This API could be called at any time to stop slave for handling the bus events.

Parameters

base	The I3C peripheral base address.
handle	Pointer to #i3c_slave_handle_t structure which stores the transfer state.

Return values

#kStatus_Success
kStatus_I3C_Idle

void I3C_SlaveTransferHandleIRQ	(	I3C_Type *	base,
		i3c_slave_handle_t *	handle
	)

Note: This function does not need to be called unless you are reimplementing the non blocking API's interrupt handler routines to add special functionality.

Parameters

base	The I3C peripheral base address.
handle	Pointer to #i3c_slave_handle_t structure which stores the transfer state.

Data Structures

Typedefs

Enumerations

Initialization and deinitialization

Status

Interrupts

DMA control

FIFO control

Bus operations

Slave non-blocking

Slave IRQ handler

Detailed Description

Data Structure Documentation

Data Fields

Field Documentation

Data Fields

Field Documentation

Data Fields

Field Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation