English
Debugging LBIST safe-stating issues
Abhinav Gaur , Amit Bathla & Gaurav Jain (Freescale)
EDN (July 08, 2015)
Logic built-in self test (LBIST) allows hardware to test its own operation. There is no need for any external hardware or test equipment. LBIST is a “must have” feature for safety compliant SoCs. But care must be exercised when using LBIST in a complex SoC.
Concept of LBIST partitioning
The entire SoC is partitioned into various LBIST partitions and a LBIST controller is present for running LBIST on each of these partitions. There is a central controller which controls all these LBIST controllers so that LBIST can be controlled from one point for the entire SoC (otherwise each of the LBIST controller needs to be programmed separately). The central LBIST controller mentioned above has bit mapping for the various options available for LBIST as well as registers for sequencing the LBIST.
|
E-mail This Article | 
|
|
Printer-Friendly Page |
|
||||||
Related Articles
New Articles
- Bigger Chips, More IPs, and Mounting Challenges in Addressing the Growing Complexity of SoC Design
- SoC design: What's next for NoCs?
- How to Save Time and Improve Communication Between Semiconductor Design and Verification Engineers
- Synopsys Foundation IP Enabling Low-Power AI Processors
- Accelerating RISC-V development with Tessent UltraSight-V
Most Popular
- System Verilog Assertions Simplified
- System Verilog Macro: A Powerful Feature for Design Verification Projects
- Enhancing VLSI Design Efficiency: Tackling Congestion and Shorts with Practical Approaches and PnR Tool (ICC2)
- I2C Interface Timing Specifications and Constraints
- Layout versus Schematic (LVS) Debug