The paper presents a new highly modular architecture of generators and compactors of test patterns. This structure has fewer levels of logic, smaller fan-out, reduced area, and operates at faster speed than external feedback LFSRs, internal feedback LFSRs, and cellular automata, all implementing the same characteristic polynomial.
Citation:
Grzegorz Mrugalski, Janusz Rajski, Jerzy Tyszer, "High Speed Ring Generators and Compactors of Test Data," vts, pp.57, 21st IEEE VLSI Test Symposium, 2003