Abstract
Test Pattern Generators is an important module for testing Asynchronous circuits that guarantee fault detection. In this paper a multi-bit TPGs with tunable LFSR lengths is presented. Our method enables smooth transitions between various word lengths by dynamically selecting LFSR configurations based on control signals. For 4-bit to 7-bit combinational circuits, we have derived a polynomial-based LFSRs and shown effect of stuck-at-fault detections through extensive testing. It includes a discussion of instructional insights regarding fault coverage and digital circuit design. By bridging fixed and flexible BIST solutions, our adaptive TPG design improves fault detection capabilities.
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