serial communication

HI., am doing a serial communication program on msp430fg4618 experimental board.

here is my code., but am not getting the correct output. somr garbage data is transmitting from my controller.

#include  <msp430fg4618.h>

void delay(unsigned int ms)
{
unsigned int i, j;
for (i = 0; i <= ms; i++)
{
for (j = 0; j<=255; j++);
}
}

void main(void)
{
 unsigned int i;
  //WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  P2SEL |= 0x30; // P2.4,5 = USART0 TXD/RXD

  IE2 |=  UTXE1 + URXE1; // Enable USART0 TXD/RXD
  UCA0CTL0 |= CHAR; // 8-bit character
  UCA0CTL1 |= SSEL1; // UCLK = ACLK = 32.768kHz
  UCA0BR0 = 0x03; // 32.768kHz/9600 - 3.41
  UCA0BR1 = 0x00;
  UCA0MCTL = 0x4A; // Modulation


  while (1)

  { for (i = 0x41; i <= 0x5A ; i++)
    {
      UCA0CTL0 &= ~SWRST; // Initialize USART state machine
      while (!(IFG1 &  UTXIFG1));
      U1TXBUF = 'Z';
      delay(100);
    }

  }

}

and i really didn't understand about the modulation control register.

thanks in advance.