#include <r_ssi.h>

Data Fields
void(*	p_callback )(i2s_callback_args_t *p_args)

void const *	p_context

R_SSI0_Type *	p_reg
	Pointer to SSI register base address.

timer_instance_t const *	p_timer
	Timer used to generate audio clock.

transfer_instance_t const *	p_transfer_tx
	Transfer used for hardware acceleration during write.

transfer_instance_t const *	p_transfer_rx
	Transfer used for hardware acceleration during read.

uint32_t const *	p_tx_src

uint32_t	tx_src_bytes

uint32_t *	p_rx_dest

uint32_t	rx_dest_bytes

uint32_t	sampling_freq_hz
	Sampling frequency in Hertz.

uint8_t	channel
	Channel number.

uint8_t	fifo_access_bytes
	Byte access to FIFO.

bool	tx_in_use
	True if a transmission is in progress.

bool	rx_in_use
	True if a reception is in progress.

bool	zeros_written
	True if zeros have been transmitted.

IRQn_Type	txi_irq
	Transmit IRQ number.

IRQn_Type	rxi_irq
	Receive IRQ number.

IRQn_Type	int_irq
	Idle/Error IRQ number.

uint32_t	open
	Whether or not this control block is initialized.

Detailed Description

Channel instance control block. DO NOT INITIALIZE. Initialization occurs when i2s_api_t::open is called.

Field Documentation

void(* ssi_instance_ctrl_t::p_callback) (i2s_callback_args_t *p_args)

Callback provided when an I2S ISR occurs. NULL indicates no CPU interrupt.

void const* ssi_instance_ctrl_t::p_context

Placeholder for user data. Passed to the user callback in i2s_callback_args_t.

uint32_t* ssi_instance_ctrl_t::p_rx_dest

Destination buffer pointer used to fill from hardware FIFO in receive ISR.

uint32_t const* ssi_instance_ctrl_t::p_tx_src

Source buffer pointer used to fill hardware FIFO from transmit ISR.

uint32_t ssi_instance_ctrl_t::rx_dest_bytes

Size of destination buffer used to fill from hardware FIFO in receive ISR.

uint32_t ssi_instance_ctrl_t::tx_src_bytes

Size of source buffer used to fill hardware FIFO from transmit ISR.

The documentation for this struct was generated from the following file: