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Power Optimization by Using Reconfigurable LFSR with Gated Clock
| Content Provider | Scilit |
|---|---|
| Author | Anandhi, S. Neela, R. Rani, M. Janaki |
| Copyright Year | 2020 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering LFSR are the most commonly used test pattern generators due to its efficiency than any binary counters. This paper presents the design of a novel reconfigurable LFSR with clock gating for VLSI testing. The technology advancement in VLSI has increased the complexity of chip testing. This complexity in testing has made the Logic BIST (LBIST) more popular than Automatic Test Equipment. This helps the testing with an additional hardware added inside the circuit. ATE does not apply any test patterns but the test patterns are generated by the testing circuits which are inbuilt in the hardware. Thus the cost of testing is greatly reduced. In the LBIST, reconfigurable LFSR are used for the test pattern generation which improves the fault coverage in IC testing. This increases the generation of random test pattern. To increase the speed of testing and reduce the power required a clock gating is introduced in the reconfigurable LFSR. In traditional testing more transistors are required in the circuits resulting in consumption of more power than power required for the functioning of the circuit. Conventional clock circuit consumes 70% of the clock buffer. This reduces the number of switching activities in the BIST. The power consumption of the proposed reconfigurable LFSR with gated clocking is significantly reduced when compared with the conventional LFSR with clocking circuits. |
| Related Links | https://iopscience.iop.org/article/10.1088/1757-899X/993/1/012065/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/993/1/012065 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 1 |
| Volume Number | 993 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2020-12-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering Hardware and Architecture Reconfigurable Lfsr |
| Content Type | Text |
| Resource Type | Article |
