Title :
Design of Low Power TPG Using LP-LFSR
Author :
Kavitha, A. ; Seetharaman, G. ; Prabakar, T.N. ; Shrinithi, S.
Abstract :
This paper presents a novel test pattern generator which is more suitable for built in self test (BIST) structures used for testing of VLSI circuits. The objective of the BIST is to reduce power dissipation without affecting the fault coverage. The proposed test pattern generator reduces the switching activity among the test patterns at the most. In this approach, the single input change patterns generated by a counter and a gray code generator are Exclusive -- ORed with the seed generated by the low power linear feedback shift register [LP-LFSR]. The proposed scheme is evaluated by using, a synchronous pipelined 4×4 and 8×8 Braun array multipliers. The System-On-Chip (SOC) approach is adopted for implementation on Altera Field Programmable Gate Arrays (FPGAs) based SOC kits with Nios II soft-core processor. From the implementation results, it is verified that the testing power for the proposed method is reduced by a significant percentage.
Keywords :
VLSI; built-in self test; feedback; field programmable gate arrays; integrated circuit design; integrated circuit testing; low-power electronics; microprocessor chips; multiplying circuits; shift registers; system-on-chip; Altera FPGA; Altera field programmable gate array; BIST structure; LP-LFSR; Nios II soft-core processor; SOC approach; VLSI circuit testing; built in self test structure; counter code generator; exclusive-ORed; gray code generator; low power TPG design; low power linear feedback shift register; low power test pattern generator design; power dissipation reduction; seed generation; single input change pattern generation; synchronous pipeline Braun array multiplier; system-on-chip approach; Arrays; Built-in self-test; Power demand; Power dissipation; Switches; Test pattern generators; BIST; FPGA; LP-LFSR; Switching activity;
Conference_Titel :
Intelligent Systems, Modelling and Simulation (ISMS), 2012 Third International Conference on
Conference_Location :
Kota Kinabalu
Print_ISBN :
978-1-4673-0886-1
DOI :
10.1109/ISMS.2012.94
