Safety mechanism for digital reset state

A system, comprising:

• a plurality of flip-flops that are configured to receive a reset signal, each of the plurality of flip-flops having a respective output port, and each of the plurality of flip-flops being configured to assume a respective default state when the reset signal is set to a predetermined value;
• a reset monitor circuit that is coupled to the respective output port of each of the plurality of flip-flops, the reset monitor circuit being configured to generate a status signal indicating whether each of the flip-flops has assumed the flip-flop's respective default state after the reset signal is set to the predetermined value;
• and
• a testing circuitry configured to detect whether the reset signal is set to the predetermined value, and transition the system into a predetermined state when the status signal generated by the reset monitor circuit indicates that at least one of the plurality of flip-flops has failed to assume the flip-flop's respective default state in response to the reset signal being set to the predetermined value.

A sensor comprising:

• a transducer;
• a processing circuitry coupled to the transducer, the processing circuitry being configured to digitally process a signal that is generated using the transducer;
• a plurality of flip-flops that are configured to receive a reset signal, each of the plurality of flip-flops having a respective output port, and each of the plurality of flip-flops being configured to assume a respective default state when the reset signal is set to a predetermined value;
• and
• a reset monitor circuit that is coupled to the respective output port of each of the plurality of flip-flops, the reset monitor circuit being configured to generate a status signal indicating whether each of the flip-flops has assumed the flip-flop's respective default state after the reset signal is set to the predetermined value;
• a testing circuitry configured to detect whether the reset signal is set to the predetermined value, and transition the sensor into a predetermined state when the status signal indicates that at least one of the plurality of flip-flops has failed to assume the flip-flop's respective default state in response to the reset signal being set to the predetermined value,
• wherein assuming a respective default state by each of the plurality of flip-flops results in the plurality of flip-flops being transitioned into a state in which a predetermined bit string is stored in the plurality of flip-flops.