tmp124 spi

Hi! i'm programming cc430f6137 to communicate with tmp124. I need help because i obtain always 0xFF. Probably i wrong configuration of spi.

Code is following:

#include "cc430x613x.h"
volatile unsigned char received= 0;


void main(void)
{
   WDTCTL = WDTPW+WDTHOLD;                   // Stop watchdog timer

  PMAPPWD = 0x02D52;                        // Get write-access to port mapping regs 
  P1MAP6 = PM_UCA0SIMO;                     // Map UCA0SIMO output to P2.0
  P1MAP5 = PM_UCA0SOMI;                     // Map UCA0SOMI output to P2.2
  P1MAP7 = PM_UCA0CLK;                      // Map UCA0CLK output to P2.4
  PMAPPWD = 0;                              // Lock port mapping registers 
   
  P4DIR |=0x80;
  P4OUT |=0x80;
                              
  P1DIR |= BIT6 + BIT7;             
  P1SEL |= BIT5 + BIT6 + BIT7;
 
  UCA0CTL1 |= UCSWRST;                                                 // **Put state machine in reset**
  UCA0CTL0 |= UCMST+UCSYNC+UCCKPH+UCMSB;    // 3-pin, 8-bit SPI master
                                                                                        // Clock polarity high, MSB
  UCA0CTL1 |= UCSSEL_2;                     // SMCLK
  UCA0BR0 = 0x02;                           // /2
  UCA0BR1 = 0;                              //
  UCA0MCTL = 0;                             // No modulation
  UCA0CTL1 &= ~UCSWRST;                     // **Initialize USCI state machine**
  UCA0IE |= UCRXIE;                         // Enable USCI_A0 RX interrupt

  P4OUT &= ~BIT7;                           // Now with SPI signals initialized,
  P4OUT |= BIT7;                            // reset slave

  __delay_cycles(100);                      // Wait for slave to initialize

  while (!(UCA0IFG&UCTXIFG));               // USCI_A0 TX buffer ready?
  P4OUT &= ~BIT7;
  UCA0TXBUF = 0x00;                     // Transmit first character
   __delay_cycles(20);
  __bis_SR_register(LPM0_bits + GIE);       // CPU off, enable interrupts
}

#pragma vector=USCI_A0_VECTOR
__interrupt void USCI_A0_ISR(void)
{
  switch(__even_in_range(UCA0IV,4))
  {
    case 0: break;                          // Vector 0 - no interrupt
    case 2:                                 // Vector 2 - RXIFG
      received= UCA0RXBUF;
  //    P4OUT &= ~0x80;
      break;
    case 4: break;                          // Vector 4 - TXIFG
    default: break;
  }
}