Publication detail

LUT Cascade-Based Architectures for High Productivity Embedded Systems

DVOŘÁK, V.

Original Title

LUT Cascade-Based Architectures for High Productivity Embedded Systems

Type

journal article - other

Language

English

Original Abstract

Fast, flexible, cheap in hardware or low-power implementations of multiple-output Boolean functions are often required in embedded systems. The paper describes digital system architectures which embody some of these attributes. They are based on already known, and recently reinvented, representation of combinational logic by Look-Up Table (LUT) cascades. Theoretical background of cascade decomposition is revised and a relation to decision diagrams is pinpointed. The design of LUT cascades is discussed and a heuristic method of cascade synthesis is given. Three possible applications of LUT cascades are presented: combinational logic pipelines, efficient micro-programs with multi-way branching and fast logic simulation in software. It is shown that LUT cascades are quite flexible in making trade-offs between performance and cost by adjusting cascade length, complexity of its cells and multiplicity of cascades. The method of LUT cascades may be quite useful not only for high performance pipelined stream processing or embedded microprocessor or microcontroller firmware, but also in digital system simulation.

Keywords

LUT cascades, binary decision diagrams BDD, MTBDD, iterative disjunctive decomposition, multi-way branching

Authors

DVOŘÁK, V.

RIV year

2007

Released

29. 8. 2007

ISBN

1828-600X

Periodical

International Review on Computers and Software

Year of study

2

Number

4

State

Republic of Italy

Pages from

357

Pages to

365

Pages count

9

URL

https://www.fit.vut.cz/research/publication/8404/

BibTex

@article{BUT45164,
  author="Václav {Dvořák}",
  title="LUT Cascade-Based Architectures for High Productivity Embedded Systems",
  journal="International Review on Computers and Software",
  year="2007",
  volume="2",
  number="4",
  pages="357--365",
  issn="1828-600X",
  url="https://www.fit.vut.cz/research/publication/8404/"
}

Documents

dvorakIRECOS.pdf