REG_POWER_CONTROL
PUT8(ss, REG_POWER_CONTROL, POWER_CONTROL_18V);
PUT8(ss, REG_POWER_CONTROL, POWER_CONTROL_18V |
PUT8(ss, REG_POWER_CONTROL, POWER_CONTROL_30V);
PUT8(ss, REG_POWER_CONTROL, POWER_CONTROL_30V |
PUT8(ss, REG_POWER_CONTROL, POWER_CONTROL_33V);
PUT8(ss, REG_POWER_CONTROL, POWER_CONTROL_33V |
PUT8(ss, REG_POWER_CONTROL, 0);