RXRDY is not being set in TMS470r1b1m

Hi,

I am using the code below to set and poll on SCI1RX pin while watching RXRDY. But the RXRDY pin is always zero. Monitored SCI1RX pin using scope and the characters typed are seen at the SCI1RX pin.

What am I missing here?

   /* Setup the UART1 to send data at 57.6K to the terminal */
   SCI1CTL3 &= ~SW_NRESET;                 // Reset SCI state machine
   SCI1CCR = TIMING_MODE_ASYNC + CHAR_8;   // Async, 8-bit Char
   SCI1CTL1 |= RXENA;                      // RX enabled
   SCI1CTL2 |= TXENA;                      // TX enabled
   SCI1CTL3 |= CLOCK;                      // Internal clock
   SCI1LBAUD = 0x3F;                       // 29.4912MHz/(8*57600)-1 for 60MHz sysclk
   SCI1PC2 |= RX_FUNC;                     // SCIRX is the SCI receive pin
   SCI1PC3 |= TX_FUNC;                     // SCITX is the SCI transmit pin
   SCI1CTL3 |= SW_NRESET;                  // Configure SCI1 state machine 
/////

int WaitForKeyInput(void)
{
  int RxStatus, key_input;

  RxStatus = 0;
  while (RxStatus == 0)
  {
    RxStatus = SCI1CTL1 & RXRDY;
    if (RxStatus == RXRDY)
      key_input = SCI1RXBUF;
  }
    return (key_input);
}

I modified the this function to the following and still doesn't work

   while(!(SCI1CTL1 & RXRDY));
   key_input = SCI1RXBUF;
   while(!(SCI1CTL2 & TXRDY));
   SCI1TXBUF = key_input;
 

Thanks
Prasad