/********************************************************************************/
/** PMU: VDDEXT enable and diagnostic function                                 **/
/********************************************************************************/
/** VDDEXT is enabled (5V at VDDEXT pin)                                       **/
/** LED1 will be set upon VDDEXT short to GND                                  **/
/** LED2 will be set upon overvoltage at VDDEXT                                **/
/** LED3 will be set upon overload at VDDEXT                                   **/
/** High Level on P1.0 clears LEDs and switches on VDDEXT again                **/
/********************************************************************************/
