LPC2103 UART0 Interrupt

void InitPLL(void)
{
  PLLCFG=0x44;

  PLLCON=0x1;
  PLLFEED=0xAA;
  PLLFEED=0x55;
  APBDIV = 0x01;

  while(!(PLLSTAT & 0x400)){}  ;

  PLLCON=0x3;
  PLLFEED=0xAA;
  PLLFEED=0x55;
}

void Init_UART (void)
{
    int Div;

    /* Initialize Pin Select Block for Tx and Rx */
    PINSEL0=0x5;
    /* Enable FIFO's and reset them */
    U0FCR=0x7;
    /* Set DLAB and word length set to 8bits */
    U0LCR = 0x83;
    /* Baud rate set to 19200 */
    Div = (60000000/16)/19200;
    U0DLM = Div/256;
    U0DLL = Div %256;
     /* Clear DLAB */
    U0LCR = 0x03;

    U0IER = 0x03; //RDA 
    //Interrupt Setup
    VICIntEnClr     = 0xFFFFFFFF; //Disable all interrupts
    VICIntSelect = 0x00; //UART0 = IRQ Interrupt
    VICVectCntl0 = 0x26; // Vector 0 is for UART0 and is Enabled
    VICVectAddr0 = (unsigned long)UART0_ISR; //Prototype address to be called 
    VICIntEnable = 0x40; //Enable UART0 Interrupt       
}
void UART0_ISR(void) 
{
    unsigned char temp = U0RBR;

    VICSoftIntClear = 0x40; //Clear Interrupt
    VICVectAddr=0xFF;
}