Polling is used to detect when the voltage on an input pin goes high. Assume that the voltage transitions occur cleanly, without anything like 'bounce'. In a particular system, the input is polled every 20ms. Decide whether each statement is true of false and choose the appropriate option. However, don't choose either option if you are unsure as incorrect choices lose marks. [Lasted] An application needs to know how long (in ms) the high voltage lasted and find that it is present for 5 successive polls. From this, we can tell that it is lasted for between 80ms and 120ms (approximately). [50ms] The maximum delay (latency) between the voltage changing and it being read is 50ms. [Minimum] Two voltage transitions (from low to high) occur, one soon after the other. The minimum time for which the voltage must be low between the two transitions to be sure that they are not seen as a single transition is 40ms. [10ms] Provide the high voltage is present for at least 10ms, it is sure to be detected. [Rate] The polling rate (or frequency) is 50 Polling is used to detect when the voltage on an input pin goes high. Assume that the voltage transitions occur cleanly, without anything like 'bounce'. In a particular system, the input is polled every 20ms. Decide whether each statement is true of false and choose the appropriate option. However, don't choose either option if you are unsure as incorrect choices lose marks. [Lasted] An application needs to know how long (in ms) the high voltage lasted and find that it is present for 5 successive polls. From this, we can tell that it is lasted for between 80ms and 120ms (approximately). [50ms] The maximum delay (latency) between the voltage changing and it being read is 50ms. [Minimum] Two voltage transitions (from low to high) occur, one soon after the other. The minimum time for which the voltage must be low between the two transitions to be sure that they are not seen as a single transition is 40ms. [10ms] Provide the high voltage is present for at least 10ms, it is sure to be detected. [Rate] The polling rate (or frequency) is 50