Usage example (Slave, Reception)

Receive 4Bytes data by Slave.

[GUI setting example]

Serial				Used
	SAU0			Unused
	SAU1			Unused
	IICA0			Used
			Transfer mode	Slave
		Slave0
			Clock mode setting	fCLK/2
			Local address setting	0xA0
			Operation mode setting	Normal
			Wakeup function setting	Off
			Communication endinterrupt priority (INTIICA0)	Low
			Slave transmission end (Callback function setting)	Unused
			Slave reception end (Callback function setting)	Used
			Slave error (Callback function setting)	Unused

[API setting example]

r_main.c

/* Start user code for global. Do not edit comment generated here */

volatile uint8_t g_iica0_rx_buf[4];

/* End user code. Do not edit comment generated here */

void main(void)

{

R_MAIN_UserInit();

/* Start user code. Do not edit comment generated here */

/* Receive data as slave mode */

R_IICA0_Slave_Receive((uint8_t *)g_iica0_rx_buf, 4U);

while (1U)

{

;

}

/* End user code. Do not edit comment generated here */

}

r_cg_serial_user.c

static void r_iica0_callback_slave_receiveend(void)

{

/* Start user code. Do not edit comment generated here */

/* Stop IICA0 module operation */

R_IICA0_Stop();

/* End user code. Do not edit comment generated here */

}