Publication Details
LUT Cascade-Based Implementation of Allocators
Mikušek Petr, Ing.
LUT cascades, Multi-Terminal BDDs, iterative disjunctive decomposition, a wavefront allocator
This paper presents a new technique for iterative decomposition of multiple-output Boolean functions with an embedded heuristics to order variables. The algorithm produces a cascade of LUTs that implements the given function and simultaneously constructs a sub-optimal Multi-Terminal Binary Decision Diagram (MTBDD). The LUT cascade can be used for pipelined processing on FPGAs or at a non-traditional synthesis of large combinational and sequential circuits. On the other hand, suboptimal MTBBDs can serve as prototypes for efficient firmware implementation, especially when a micro-programmed controller that firmware runs on supports multi-way branching. A novel technique is illustrated on a practical example of the m x n wavefront allocator (m = n = 4, 20 inputs, 16 outputs). It may be quite useful as a more flexible alternative implementation of digital systems with increased testability and improved manufacturability.
@inproceedings{BUT30717,
author="Václav {Dvořák} and Petr {Mikušek}",
title="LUT Cascade-Based Implementation of Allocators",
booktitle="Proc. of the 25th Convention of EEE in Israel",
year="2008",
pages="85--89",
publisher="IEEE Computer Society",
address="New York",
isbn="978-1-4244-2482-5",
url="https://www.fit.vut.cz/research/publication/8794/"
}