TMS570LS3137: RTI doubt

void rtiNotification(uint32 notification)
{
    uint8_t i,j;
    uint16 A2 = 0x00, A1 = 0x00, A0 = 0x00;
    uint8 exTime0 = 0, exTime1 = 0;

    switch (notification)
    {
    case rtiNOTIFICATION_COMPARE0:
        /*  enter user code between the USER CODE BEGIN and USER CODE END. */
        /* Toggle HET pin 15 */
        gioSetBit(hetPORT1, 15, 1);  //0x00100000
        gioSetBit(hetPORT1, 20, 1);  //0x00100000

        for(i = 0; i<10; i++){for(j = 0; j<10; j++){}} // It defines the pulse width

        gioSetBit(hetPORT1, 15, 0);  //0x00000000
        gioSetBit(hetPORT1, 20, 0);  //0x00100000
        break;
    case rtiNOTIFICATION_COMPARE1:
        exTime0++;
        if(255 < exTime0)
        {
            exTime0 = 0;
            exTime1++;
            writeCY15B(A2, A1, (A0+1), exTime1, 0, true);                //Write in an external FRAM direction.
        }
        writeCY15B(A2, A1, A0, exTime0, 0, true);                //Write in an external FRAM direction.
    }
}