Experimental Study on Cell-Base High-Performance Datapath Design
نویسندگان
چکیده
This paper experimentally investigates the effectiveness of regularly-placed bit-slice layout and transistor-level optimization to datapath circuit performance. We focus on cell-base design flows with transistorlevel circuit optimization. We examine the effectiveness through design experiments of 32-bit carry select adder and 16-bit tree-style multiplier in a 0.35μm technology. From the experimental results, we can scarcely observe that manual cell placement contributes to improve circuit performance. On the other hand, transistor-level circuit optimization is so effective that circuit delay is reduced by 11–20% and power dissipation decreases to 42–62%. We can see that, in the case of cell-base design, transistor-level optimization is also important as well as in the case of custom design, whereas cell-base bit-slice layout has less importance to circuit performance. key words: datapath design, bit-slice layout, transistor sizing, cell-base design
منابع مشابه
Systems Development Tools for Embedded Systems and SOC ’ s
A new approach for developing high-level performance models for system-on-achip (SOC) designs is presented. In this work we study the feasibility of using that approach to design RED, a novel architecture based on a standard microprocessor containing a reconfigurable datapath, for high-performance embedded systems.
متن کاملA High-Level Synthesis System for Digital Signal Processing Based on Enumerating Data-Flow Graphs
| This paper proposes a high-level synthesis system for datapath design of digital signal processing hardwares. The system consists of four phases: (1) DFG (dataow graph) generation, (2) scheduling, (3) resource binding, and (4) HDL (hardware description language) generation. In (1), the system does not generate only one best DFG representing a given behavioral description of a hardware, but mo...
متن کاملExperimental Study on a 1000W Dead-End H2/O2 PEM Fuel Cell Stack with Cascade Type for Improving Fuel Utilization
Proton exchange membrane fuel cells (PEMFCs) with a dead-ended anode and cathode can obtain high hydrogen and oxygen utilization by a comparatively simple system. Nevertheless, the accumulation of the water in the anode and cathode channels might cause a local fuel starvation degrading the performance and durability of PEMFCs. In this study, a brand new design for a polymer electrolyte membrane...
متن کاملA Co-Design Framework with OpenCL Support for Low-Energy Wide SIMD Processor
Energy efficiency is one of the most important metrics in embedded processor design. The use of wide SIMD architecture is a promising approach to build energyefficient high performance embedded processors. In this paper, we propose a design framework for a configurable wide SIMD architecture that utilizes an explicit datapath to achieve high energy efficiency. The framework is able to generate ...
متن کاملArchitecture evaluation based on the datapath structure and parallel constraint
| This paper presents a novel way of evaluating architecture of embedded custom DSPs which helps designers optimizing the datapath con guration and the instruction set. Given a datapath structure, it evaluates the performance in terms of an estimated number of steps to execute the target program on the datapath. A concept of \parallel constraint" is newly introduced, which enables evaluation of...
متن کامل