RIIC Startup execption

Set RIIC0.CR2 to 1 to start RIIC to enter INTRIIC0TI and INTRIIC0TEI interrupts, but both SCL and SDA produce falling edges, while the manual describes that SCL should delay producing falling edges for a while and will enter INTRIIC0EE error interrupts. I used the master mode of the RIIC0 module and selected the Alt2 mode with P10.2 and P10.3 pins. Here are my initialization Settings

INTC2MKRIIC0TI = 1U;

INTC2RFRIIC0TI = 0U;

INTC2TBRIIC0TI = 0U;

INTC2MKRIIC0TEI = 1U;

INTC2RFRIIC0TEI = 0U;

INTC2TBRIIC0TEI = 0U;

INTC2MKRIIC0RI = 1U;

INTC2RFRIIC0RI = 0U;

INTC2TBRIIC0RI = 0U;

INTC2MKRIIC0EE = 1U;

INTC2RFRIIC0EE = 0U;

INTC2TBRIIC0EE = 0U;

RIIC0.CR1.UINT32 &= 0xFFFFFF7FUL;

RIIC0.CR1.UINT32 |= 0x00000040UL;

RIIC0.CR1.UINT32 |= 0x00000080UL;

RIIC0.SER.UINT32 = 0x00000001UL;

RIIC0.MR1.UINT32 |= 0x00000040UL; /* 8MHz / 16 */

RIIC0.BRH.UINT32 = 30; /* 10kbps */
RIIC0.BRL.UINT32 = 20;

// RIIC0.MR1.UINT32 |= 0x00000040UL; /* 40MHz / 8 */

// RIIC0.BRH.UINT32 = 0xF6U; /* 100kbps */
// RIIC0.BRL.UINT32 = 0xF9U;

RIIC0.MR2.UINT32 = 0x00000006UL;

RIIC0.MR3.UINT32 = 0x00000010UL;

RIIC0.FER.UINT32 = 0x00000010UL;

RIIC0.IER.UINT32 = 0x000000E8UL;

/* Alternative function port settings */
/* RIIC0SDA(P10_2:CN1D-110pin) 2'nd Alternative (output/input) */
/* RIIC0SCL(P10_3:CN1D-109pin) 2'nd Alternative (output) */
uint32_t reg32_value = PORTPODC10 | 0x0000000CUL;
do
{
reg32_value = PORTPODC10 | 0x0000000CUL;
PORTPPCMD10 = 0xA5U;
PORTPODC10 = reg32_value;
PORTPODC10 = (uint32_t)(~reg32_value);
PORTPODC10 = reg32_value;
} while (PORTPPROTS10 != 0x00000000UL);
PORTPIPC10 &= 0xFFF3U; // must be 0
PORTPBDC10 |= 0x000CU;
PORTPFCAE10 &= 0xFFF3U;
PORTPFCE10 &= 0xFFF3U;
PORTPFC10 |= 0x000CU;
PORTPMC10 |= 0x000CU;
PORTPM10 &= 0xFFF3U;
PORTPU10 |=0x000C;

/* I2C Bus Interface Internal Reset
RIICnCR1 - I2C Bus Control Register 1
b31:b 8 - Reserved set to 0
b 7 ICE - I2C Bus Interface Enable - not change.
b 6 IICRST - I2C Bus Interface Internal Reset - Clears the RIIC reset or internal reset. set to 0
b 5 CLO - Extra SCL Clock Cycle Output - not change.
b 4 SOWP - SCLO/SDAO Write Protect - not change.
b 3 SCLO - SCL Output Control/Monitor - not change.
b 2 SDAO - SDA Output Control/Monitor - not change.
b 1 SCLI - SCL Line Monitor - not change.
b 0 SDAI - SDA Line Monitor - not change. */
RIIC0.CR1.UINT32 &= 0xFFFFFFBFUL;

SetTableBit((uint16*)R_ICRIIC0EE);
UnmaskInterrupt((uint16*)R_ICRIIC0EE);

SetTableBit((uint16*)R_ICRIIC0RI);
UnmaskInterrupt((uint16*)R_ICRIIC0RI);

SetTableBit((uint16*)R_ICRIICTI0);
UnmaskInterrupt((uint16*)R_ICRIICTI0);

SetTableBit((uint16*)R_ICRIICTEI0);
UnmaskInterrupt((uint16*)R_ICRIICTEI0);

/*****************************************/

/*****************************************/

This is my transmitter

void R_IIC_Master_Transmit(uint8 slave_addr, uint32 len , uint8 *transmission_data)
{

while( RIIC0.CR2.UINT32 & 0x00000080UL ); // Wait to a bus-free state

iic_prm.iic_state = ADDR_W_STATE;
iic_prm.tx_data_p = transmission_data;
iic_prm.tx_len = len;
iic_prm.tx_count = 0UL;
iic_prm.slave_addr = slave_addr;

RIIC0.CR2.UINT32 |= 0x00000002UL; //Startup RIIC

}