| 摘要 |
<p>The method involves providing a zero resetting instruction (SysRes) after an occurrence of an abnormal action or interference e.g. momentary power error, in a normal operating mode of a microcontroller circuit for entering into a zero resetting mode. The instruction imposes an automatic starting state of a monitoring unit (3) which maintains several parts of a microcontroller in a rest state. A supply voltage level in the unit is controlled, and the microcontroller is restarted at the end of the resetting mode if the unit determines a sufficient voltage level for the microcontroller operation. An independent claim is also included for a microcontroller circuit comprising a monitoring circuit.</p> |
