Wipro Limited
DEVICE AND METHOD FOR MONITORING FUNCTIONAL SAFFETY IN INTEGRATED CIRCUITS (ICS)

Abstract:

A Functional Safety Timer (FST) and method of for monitoring functional safety in Integrated Circuits (ICs) is disclosed. The FST includes hardware based counter for counting programmed number of cycles associated with an event of peripheral device. The FST includes first logic circuit and second logic circuit. The first logic circuit receives first trigger of peripheral device. In response to first trigger, the counter is initiated by first logic circuit. The second logic circuit receives second trigger of peripheral device. In response to second trigger, the counter being initiated is terminated by the second logic circuit. Further, the FST includes a hardware based comparator for comparing the number of cycles counted by the hardware based counter with a threshold time associated with the event and a plurality of programmable registers for determining one or more faults associated with the event based on result of the comparison and sequence of events.