/* The function is used to set Low Voltage Detect Level threshold voltage. 
The  */
void SysCtlLVDVoltSelect(unsigned long ulVoltage)
/* The function is used to set Low Voltage Detect Level threshold voltage. 
The  */
void SysCtlLVDVoltSelect(unsigned long ulVoltage)
{
    xASSERT((ulVoltage == PWRCU_LVDCSR_LVDS_2V7) ||
            (ulVoltage == PWRCU_LVDCSR_LVDS_2V8) ||
            (ulVoltage == PWRCU_LVDCSR_LVDS_2V9) ||
            (ulVoltage == PWRCU_LVDCSR_LVDS_3V0)
           );
    xHWREG(PWRCU_LVDCSR) &= ~PWRCU_LVDCSR_LVDS_M;
    xHWREG(PWRCU_LVDCSR) |= ulVoltage;
}