9.6.1. Factors Affecting Latency

Try these first

1. 1.

   What is interrupt latency?

   Hint

   Think about the time delay involved.

2. 2.

   Name one factor that affects interrupt latency.

   Hint

   Consider what has to happen before the ISR can execute.

3. 3.

   What is the primary concern regarding interrupt latency?

   • Enhancing processing speed
   • Minimizing response time
   • Increasing code complexity

   Hint

   Think about what quick response means in terms of timing.

4. 4.

   True or False: A lower processor state time results in higher interrupt latency.

   • True
   • False

   Hint

   Consider the relationship between saving state and timing.

5. 5.

   Consider a system with a processor state save time of 5 microseconds and an ISR setup time of 3 microseconds. Calculate the total interrupt latency.

   Hint

   Add together the individual components contributing to latency.

6. 6.

   Discuss the consequences of delaying ISR execution in an environment where rapid data signal processing is essential, such as audio processing.

   Hint

   Think about real-time audio processing needs.