Coverage based microelectronic circuit, and method for providing a design of a microelectronic circuit

Microelectronic circuit, comprising:

• a plurality of logic units and register circuits, said logic units and register circuits arranged into a plurality of processing paths, and
• a plurality of monitoring units associated with respective ones of said processing paths, each of said monitoring units configured to produce an observation signal as a response to anomalous operation of the respective processing path;
• wherein each of said plurality of logic units belongs to one of a plurality of delay classes according to an amount of delay that it is likely to generate,
• wherein said delay classes comprise first, second, and third classes, of which the first class covers logic units that are likely to generate longest delays, the second class covers logic units that are likely to generate shorter delays than said first class, and the third class covers logic units that are likely to generate shorter delays than said second class,
• wherein at least some of said plurality of processing paths comprise logic units belonging to said second class but are without monitoring units,
• and wherein at least some of said plurality of processing paths comprise logic units belonging to said third class but have monitoring units associated with them.