Electronic Design Automation

7.3.2.2. Logic BIST system design

The second step is to design the logic BIST system at the RTL. The decisions that need to be made at this stage include:

• The type of logic BIST architecture to adopt.
• The number of PRPG-MISR (or PEPG-MISR) pairs to use
• The length of each PRPG-MISR (or PEPG-MISR) pair.
• The faults to be tested and BIST timing control diagrams to be used for testing these faults.
• The types of optional logic to be added to ease physical implementation and facilitate debug and diagnosis, as well as improve the circuit's fault coverage.

7.3.2.2.1. Logic BIST architecture

We choose to implement STUMPS-based logic BIST architecture, because it is easy to integrate with scan/ATPG and is the architecture widely used in the industry. ...