6.3.3. Code Coverage and Functional Coverage

Try these first

1. 1.

   What is code coverage?

   Hint

   Think about the lines of code that get run during tests.

2. 2.

   What does statement coverage check?

   Hint

   Consider basic execution of each part of the code.

3. 3.

   What is the purpose of code coverage?

   • To track code execution
   • To measure functional scenarios
   • To analyze power consumption

   Hint

   Consider what code coverage is primarily focused on.

4. 4.

   True or False: Functional coverage ensures all possible input combinations are tested.

   • True
   • False

   Hint

   Think about what it means to cover functionality.

5. 5.

   Design an RTL testbench that incorporates both code coverage and functional coverage metrics. Outline the key components and how each metric will be implemented.

   Hint

   Outline both structural and functional aspects in your design.

6. 6.

   Evaluate a given RTL design's coverage report that shows 70% statement coverage but only 40% branch coverage. Discuss the implications and what actions should be taken next.

   Hint

   Think critically about the significance of branch coverage in identifying potential bugs.