3.4.1. IEEE 1149.1 (JTAG)

Try these first

1. 1.

   What does JTAG stand for?

   Hint

   Think of the organization that developed the standard.

2. 2.

   What is the purpose of boundary scan testing?

   Hint

   It helps analyze connections without physical access.

3. 3.

   What does IEEE 1149.1 standard define?

   • A standard for analog circuits
   • A standard for boundary scan testing
   • A standard for wireless communication

   Hint

   Think about the main function of JTAG.

4. 4.

   Is JTAG used solely for testing?

   • True
   • False

   Hint

   Consider its broader applications beyond testing.

5. 5.

   Design a simple circuit diagram showing where JTAG can be implemented for testing.

   Hint

   Think about the layout and accessibility of connections.

6. 6.

   Consider a scenario where JTAG fails to detect a fault. Discuss potential design flaws that could cause this.

   Hint

   Reflect on how design mistakes limit testability.