JTAG/Boundary Scan tests within the circuit and detects structural fault locations by setting thousands of test points, even under BGAs, - with only four test bus lines.

Unlike other test access methodologies, Boundary Scan can be utilized from the beginning to the end of the production of a PCB for testing, design verification, in-system programming, debugging, and emulation.

Advantages include:

• Usable throughout the entire product life cycle
• No mechanical access necessary – while still offering very high test coverage
• Accelerates development of new products reduced Time-to-Market
• Test program generation in a short time fast turnaround, e.g. for design changes
• low initial investment and cost of maintenance compared to other test technologies