How to Calculate Time Required to Execute a Program on a Microprocessor
Question:
A program in a microprocessor with a clock frequency of 2.5MHz has 200 clock periods. How many micrometers is the time required to execute this program in seconds?
Answer:
The time required to execute this program is 0.08 microseconds (µs).
To calculate the time required to execute a program on a microprocessor, we can use the formula:
Time = Number of clock periods / Clock frequency
In this case, the given information states that the microprocessor has a clock frequency of 2.5MHz (2.5 million cycles per second) and the program has 200 clock periods.
Using the formula, we can calculate the time required as follows:
Time = 200 clock periods / 2.5MHz
Converting the clock frequency to microseconds (µs) by dividing it by 1 million:
Time = 200 clock periods / 2.5 × 106 cycles/µs
Simplifying the expression:
Time = 0.08 µs
Therefore, the time required to execute this program is 0.08 microseconds (µs).