Testable design of non-scan sequential circuits using extra logic

2002 ◽  
Author(s):  
D.K. Das ◽  
B.B. Bhattacharya
Keyword(s):  
Sequential Circuits ◽  
Testable Design

Low Power and High Speed Sequential Circuits Test Architecture

2019 ◽  
Vol 12 ◽  
Author(s):  
Ahmed K. Jameil ◽  
Yasir Amer Abbas ◽  
Saad Al-Azawi
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Test Generation ◽  
High Speed ◽  
Fir Filter ◽  
Sequential Circuits ◽  
Fir Filters ◽  
Design Verification ◽  
Sequential Circuit ◽  
Generation Algorithm

Background: The designed circuits are tested for faults detection in fabrication to determine which devices are defective. The design verification is performed to ensure that the circuit performs the required functions after manufacturing. Design verification is regarded as a test form in both sequential and combinational circuits. The analysis of sequential circuits test is more difficult than in the combinational circuit test. However, algorithms can be used to test any type of sequential circuit regardless of its composition. An important sequential circuit is the finite impulse response (FIR) filters that are widely used in digital signal processing applications. Objective: This paper presented a new design under test (DUT) algorithm for 4-and 8-tap FIR filters. Also, the FIR filter and the proposed DUT algorithm is implemented using field programmable gate arrays (FPGA). Method: The proposed test generation algorithm is implemented in VHDL using Xilinx ISE V14.5 design suite and verified by simulation. The test generation algorithm used FIR filtering redundant faults to obtain a set of target faults for DUT. The fault simulation is used in DUT to assess the benefit of test pattern in fault coverage. Results: The proposed technique provides average reductions of 20 % and 38.8 % in time delay with 57.39 % and 75 % reductions in power consumption and 28.89 % and 28.89 % slices reductions for 4- and 8-tap FIR filter, respectively compared to similar techniques. Conclusions: The results of implementation proved that a high speed and low power consumption design can be achieved. Further, the speed of the proposed architecture is faster than that of existing techniques.

Testable design for cell-based design ASICs and its application to VLSI image signal processor

1993 ◽  
Vol 76 (4) ◽  
pp. 47-56
Author(s):  
Hiroyuki Kawai ◽  
Shin-Ichi Nakagawa ◽  
Masahiko Yoshimoto ◽  
Yasutaka Horiba ◽  
Takuji Ogihara ◽  
...  
Keyword(s):  
Image Signal Processor ◽  
Testable Design ◽  
Signal Processor

Equivalent Sequential Circuits

1959 ◽  
Vol 6 (1) ◽  
pp. 30-34 ◽  
Author(s):  
W. Cadden
Keyword(s):  
Sequential Circuits
Sign in / Sign up

Export Citation Format

Share Document