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P3SEL = 0x0E;                             // Setup P3 for SPI mode
  U0CTL = CHAR + SYNC + SWRST;              // 8-bit, SPI, Slave
  U0TCTL = CKPL + STC;                      // Polarity, UCLK, 3-wire
  ME1 = USPIE0;                             // Module enable
  U0CTL &= ~SWRST;                          // SPI enable
  IE1 |= URXIE0;                            // Recieve interrupt enable
  _EINT();                                  // Enable interrupts

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