• NARAYANA SETTY NARESH
• Dr.G.N. Kodandaramaiah

Time borrowing techniques have been widely used to mitigate the timing errors in high-performance designs. The dynamic flip-flop conversion technique is introduced by Ahmadi et al. which dynamically converts flip-flops into transparent latches to grant the time borrowing from the next stage and prevent setup time violation but it could not prevent the timing violation in the successive critical path (SCP) and critical feedback path (CFP) structures. Then a fast prediction logic of the critical path along with dynamic clock stretching in SCP and CFP structures was introduced which also could not prevent the timing errors. The proposed technique uses glitch free clock switching for unrelated clocks which is more effective in terms of the performance improvement and less area utilization when compared with the best existing technique. The designs are modelled in Verilog HDL and are functionally verified by using Xilinx ISIM Simulation Tool. The designs are synthesized for Spartan3E FPGA by suing Xilinx ISE 14.5 Tools for the device XC3S500E with a package of FG320 and a speed grade of -5. The proposed design proves to be better than the remaining designs functionally. Also the proposed design occupies an area which is around 33% less than the previous designs.

Dynamic clock stretching, high-performance design, prediction logic, setup time violation, time borrowing

"Efficient Area and Delay of Error Avoidance Technique using Synchronizer and Flip-flops", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.782-787, June 2019, Available :http://www.jetir.org/papers/JETIR1907867.pdf

"Efficient Area and Delay of Error Avoidance Technique using Synchronizer and Flip-flops", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp782-787, June 2019, Available at : http://www.jetir.org/papers/JETIR1907867.pdf