Uart in Interrupt Mode ?

void UartInit(void)
{
    //      Allows access to the divisor latches of the baud generator during a 
    // read or write operation (DLL and DLH)
    CSL_FINS (hUartRegs->LCR, UART_LCR_DLAB, CSL_UART_LCR_DLAB_ENABLE);
    //      Break condition is disabled.
    CSL_FINS (hUartRegs->LCR, UART_LCR_BC,   CSL_UART_LCR_BC_DISABLE);
    //      Stick parity is disabled.
    CSL_FINS (hUartRegs->LCR, UART_LCR_SP,   CSL_UART_LCR_SP_DISABLE);
    //      Odd parity is selected
    CSL_FINS (hUartRegs->LCR, UART_LCR_EPS,  CSL_UART_LCR_EPS_ODD);
    //      No PARITY bit is transmitted or checked
    CSL_FINS (hUartRegs->LCR, UART_LCR_PEN,  CSL_UART_LCR_PEN_DISABLE);    

    // Set the baudrate,for accessing LCR[7] should be enable 
    hUartRegs->DLL  = DLL_VAL;
    hUartRegs->DLH  = DLM_VAL;

    // Allows access to the receiver buffer register (RBR), 
    // the transmitter holding register (THR), and the
    // interrupt enable register (IER) selected.
    CSL_FINS (hUartRegs->LCR, UART_LCR_DLAB, CSL_UART_LCR_DLAB_DISABLE);
    // Even Parity is selected
    CSL_FINS (hUartRegs->LCR, UART_LCR_EPS, CSL_UART_LCR_EPS_EVEN);
    // Parity Enable 
    CSL_FINS (hUartRegs->LCR, UART_LCR_PEN, CSL_UART_LCR_PEN_ENABLE);
 
    // Disable THR, RHR, Receiver line status interrupts
    //CSL_FINS (hUartRegs->IER, UART_IER_ERBI,  CSL_UART_IER_ERBI_DISABLE);
    CSL_FINS (hUartRegs->IER, UART_IER_ETBEI, CSL_UART_IER_ETBEI_DISABLE);
    CSL_FINS (hUartRegs->IER, UART_IER_ELSI,  CSL_UART_IER_ELSI_DISABLE);
    CSL_FINS (hUartRegs->IER, UART_IER_EDSSI, CSL_UART_IER_EDSSI_DISABLE);

    CSL_FINS (hUartRegs->IER, UART_IER_ERBI,  CSL_UART_IER_ERBI_ENABLE);


    /* If autoflow control is desired, 
    * write appropriate values to the modem 
    * control register (MCR). Note that all UARTs 
    * do not support autoflow control, see 
    * the device-specific data manual for supported features.
    * 
    * MCR
    * ====================================================
    * Bit  Field   Value   Description
    * 5    AFE     0       Autoflow control is disabled
    * 4    LOOP    0       Loop back mode is disabled.
    * 1    RTS     0       RTS control (UARTn_RTS is disabled, 
    *                      UARTn_CTS is only enabled.)
    * =====================================================
    * 
    * 
    */

    hUartRegs->MCR = 0;

    /* Choose the desired response to 
    * emulation suspend events by configuring 
    * the FREE bit and enable the UART by setting 
    * the UTRST and URRST bits in the power and 
    * emulation management register (PWREMU_MGMT).
    * 
    * 
    * PWREMU_MGMT
    * =================================================
    * Bit  Field   Value   Description
    * 14   UTRST   1       Transmitter is enabled
    * 13   URRST   1       Receiver is enabled
    * 0    FREE    1       Free-running mode is enabled
    * ===================================================
    * 
    */
    hUartRegs->PWREMU_MGMT = 0x6001;

    /* Cleanup previous data (rx trigger is also set to 0)*/
    /* Set FCR = 0x07;        */
    CSL_FINS (hUartRegs->FCR, UART_FCR_FIFOEN,   CSL_UART_FCR_FIFOEN_ENABLE);
    CSL_FINS (hUartRegs->FCR, UART_FCR_TXCLR,    CSL_UART_FCR_TXCLR_CLR);
    CSL_FINS (hUartRegs->FCR, UART_FCR_RXCLR,    CSL_UART_FCR_RXCLR_CLR);
    CSL_FINS (hUartRegs->FCR, UART_FCR_DMAMODE1, CSL_UART_FCR_DMAMODE1_DISABLE);
    CSL_FINS (hUartRegs->FCR, UART_FCR_RXFIFTL,  CSL_UART_FCR_RXFIFTL_CHAR1);

    return;
}