The Boundary-Scan Test Standard

This chapter describes the elements defined by the IEEE Std 1149.1 for the Standard Test Access Port and Boundary-Scan Architecture. First the constituent parts of the Boundary-Scan architecture (both the mandatory and the optional items), are described followed by the instructions. The final section gives some rules which should be followed when BST designs are to be documented. Numerous descriptions are clarified, each with a practical example, making this chapter a tutorial for BST. For more detailed specifications of the BST standard please refer to the listing in the Appendix of this book, where these specifications are summarized for those readers who do not have the official IEEE Std 1149.1 manual readily available.