Integrated component for triggering air bag in vehicle, has storage unit storing content of register in another register, and execution unit executing task from content of latter register to verify whether another task is executed correctly

摘要

The component (100) has an execution unit (120) e.g. microprocessor system, to execute a software task from a content of a register (110) for determining whether an air bag is triggered or not. A storage unit stores the content of the register in another register (130), and another execution unit (140) executes another software task from the content of the latter register to verify whether the former task is executed correctly. A comparator compares the results of the tasks, where an emergency signal is produced if the result of comparison is higher than a preset value. An independent claim is also included for a method of securing a programmable integrated component.