In this paper, we investigate several ways direct wires can be used and experimentally show improvements in delay as a consequence. We call a group of LUTs connected by direct wires, a LUT structure. It can be characterized by the number of …

Intuitively, literal-driven LUT packing behaves as a powerful fanin-bound node elimination, unveiling higher-order Boolean simplification opportunities. We embed our proposed LUT-based optimization flow, area oriented, in a commercial synthesis tool. Using our methodology, we improve 12 of the best area results in the EPFL synthesis competition.

In this paper, we study the area and depth trade-off in lookup-table (LUT) based FPGA technology mapping. Starting from a depth-optimal mapping solution, we perform a sequence of depth relaxation operations and area-minimizing mapping procedures to produce a set of mapping solutions for a given design with smooth area and depth trade-off.

look-up table (LUT) sizes for area-delay product are 4-6, with 4 better for area and 6 for performance. Since that time several things have changed. A new “LUT structure” mapping technique can target cells with a larger number of inputs (cut size) without assuming that the cell implements all possible functions of those inputs.

In this brief, we present a novel area-efficient SOT-MRAM-based LUT that can efficiently remove the last stage selector. In the proposed LUT, the role of the last stage selector, which is selecting a cell among the preceding two cells, has been implemented using SOT-MRAM cell with additional vertical metal lines within the LUT cell.

2024年1月5日 · The proposed multiplier is a LUT based multiplier which optimizes the area because of no DSP blocks use and efficient carry chain generation using LUT. The paper organized as follows Sect. 1 gives the detailed introduction and literature review, Sect. 2 describes the proposed method, Sect. 3 gives the simulation results and comparisons of ...

Accurate multiplier design with low area on FPGA is the challenging task. The proposed method is accurate multiplier design, which is designed only using lookup table (LUT). The proposed design has low power and reduced area because of using simple LUT’s for generating partial product.

2022年7月28日 · 查找表 （look-up-table）简称为 LUT，LUT 本质上就是一个 RAM。 目前 FPGA 中多使用 4 输入的 LUT，所以每一个 LUT 可以看成一个有 4 位地址线的 16x1 的RAM。 当用户通过原理图或 HDL 语言描述了一个逻辑电路以后，FPGA 开发软件会自动计算逻辑电路的所有可能的结果，并把结果事先写入 RAM，这样，每输入一个信号进行逻辑运算就等于输入一个地址进行查表，找出地址对应的内容，然后输出即可。 2. 可编程逻辑块 （CLB） CLB是指可编程逻辑 …

This paper investigates two types of LUT structures and the associated tradeoffs. A new mapping algorithm is developed to handle such structures. Experimental results indicate that even when regular LUT structures are used, area and delay can be improved 7.4% and 11.3%, respectively, compared to the high-effort technology mapping with ...

The area minimization problem in duplication-free mapping can be solved optimally by decomposing the circuit into a set of maximum fanout free cones (MFFCs) which are then