void enable_DigIo(void)
{
unsigned char datum = 0;
datum |= (1<<Silbadero_DigIoOutValAlarmEn_B)
      | (1<<Silbadero_DigIoAlarmStart_B)
      | (1<<Silbadero_DigIoAlarmPol_B);
                                   /* enable DIGIO for wake-up alarm
                                      the alarm function
                                    raising edge causes the alarm
                                    configure as an input pin */
transSPI(WRITE_CMD, Silbadero_DigIoDir_O, &datum, 1);

datum = 0x02;                     /* apply the above values for DiIO2 */
transSPI(WRITE_CMD, Silbadero_DigIoPortWe_O, &datum, 1);

datum = 0;
transSPI(WRITE_CMD, Silbadero_DigIoPortWe_O, &datum, 1);
                                /* clear the write enable register */
                        
datum = ((1<<Silbadero_PwrUpEventDigInAlarm_B)
      | (1<<Silbadero_PwrUpTime_O)
      | (1<<Silbadero_PwrDownMode_O));
                                  /* alarm source for powering up is DIGIO
                                   the delay used is one 244 us tick
                                   PwrDownModePad used */
//datum = 1<<Silbadero_PwrDownMode_O;
transSPI(WRITE_CMD, Silbadero_PwrUpEventDigInAlarm_O, &datum, 1);

datum = 0;
transSPI(WRITE_CMD, Silbadero_PwrDown_O, &datum, 1);
                                /* if necessary e.g. after reset
                                   clear the register */
hwdelay (3904);                     /* wait 244 us */

datum = 1<<Silbadero_PwrDown_B;
transSPI(WRITE_CMD, Silbadero_PwrDown_O, &datum, 1);
                                /* the systems now goes
                                   to the power down state */
                                //* ... end of a code snippet ... */
}

/* ... beginning of code snippet ... */
unsigned char datum = 0;
transSPI(WRITE_CMD, Silbadero_PwrDown_O, &datum, 1);
/* ... end of code snippet ... */