What is "power-on reset" (POR) circuitry, and why is it important in digital systems?
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Incorrect.
The correct answer is A) A circuit that automatically generates a reset signal when the system is first powered on (and the supply voltage is ramping up), ensuring that all sequential elements start in a known, defined state rather than an arbitrary or undefined state
Correct Answer
A circuit that automatically generates a reset signal when the system is first powered on (and the supply voltage is ramping up), ensuring that all sequential elements start in a known, defined state rather than an arbitrary or undefined state
Without a reliable POR, flip-flops and other state elements might power up in random or unpredictable states, potentially leading to erratic behavior; POR circuits typically monitor the supply voltage and hold the system in reset until voltage is stable and sufficient for reliable operation.