3.3.4. Boundary Scan Testing (JTAG)

Try these first

1. 1.

   What does JTAG stand for?

   Hint

   Think about what the acronym could represent in the testing context.

2. 2.

   Name one key advantage of boundary scan testing.

   Hint

   Consider the issues faced with dense layouts.

3. 3.

   What does JTAG allow engineers to do with ICs?

   • Access internal circuitry
   • Test boundary pins
   • Measure signal traces

   Hint

   Think about the main focus of JTAG testing.

4. 4.

   True or False: JTAG is used primarily for testing analog components rather than digital ones.

   • True
   • False

   Hint

   Recall the context in which JTAG is typically applied.

5. 5.

   Describe how JTAG could be integrated into a new product design and what considerations an engineer must take for effective testing.

   Hint

   Think about the physical arrangement of components.

6. 6.

   Evaluate the potential risks and drawbacks of relying on JTAG alone in a testing strategy for a complex embedded system.

   Hint

   Consider the limitations of JTAG testing.