Test vector encoding using partial LFSR reseeding
Proceedings of the IEEE International Test Conference 2001
Efficient Seed Utilization for Reseeding based Compression
VTS '03 Proceedings of the 21st IEEE VLSI Test Symposium
Reducing Test Dat Volume Using LFSR Reseeding with Seed Compression
ITC '02 Proceedings of the 2002 IEEE International Test Conference
Reducing Test Application Time Through Test Data Mutation Encoding
Proceedings of the conference on Design, automation and test in Europe
IEEE Transactions on Computers
RL-huffman encoding for test compression and power reduction in scan applications
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Synchronization overhead in SOC compressed test
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Survey of Test Vector Compression Techniques
IEEE Design & Test
State skip LFSRs: bridging the gap between test data compression and test set embedding for IP cores
Proceedings of the conference on Design, automation and test in Europe
Multilevel-Huffman test-data compression for IP cores with multiple scan chains
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Nine-coded compression technique for testing embedded cores in socs
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Test set compaction algorithms for combinational circuits
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Test data compression and decompression based on internal scan chains and Golomb coding
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
A unified approach to reduce SOC test data volume, scan power and testing time
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Variable-length input Huffman coding for system-on-a-chip test
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
An efficient test vector compression scheme using selective Huffman coding
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Test Data Compression Based on Variable-to-Variable Huffman Encoding With Codeword Reusability
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Hi-index | 0.00 |
The main disadvantage of LFSR-based compression is that it should be usually combined with a constrained ATPG process, and, as a result, it cannot be effectively applied to IP cores of unknown structure. In this paper, a new LFSR-based compression approach that overcomes this problem is proposed. The proposed method allows each LFSR seed to encode as many slices as possible. For achieving this, a special purpose slice, called stop-slice, that indicates the end of a seed's usage is encoded as the last slice of each seed. Thus, the seeds include by construction the information of where they should stop and, for that reason, we call them self-stoppable. A stop-slice generation procedure is proposed that exploits the inherent test set characteristics and generates stop slices which impose minimum compression overhead. Moreover, the architecture for implementing the proposed technique requires negligible additional hardware overhead compared to the standard LFSR-based architecture. The proposed technique is also accompanied by a seed calculation algorithm that tries to minimize the number of calculated seeds.