Design and characterization of asynchronous delay-insensitive arithmetic components using NULL conventional logic

Author

Satish K. Bandapati

Keywords and Phrases

NULL Convention Logic (NCL)

Abstract

"This thesis focuses on design and characterization of arithmetic circuits, such as multipliers and ALUs, using the asynchronous delay-insensitive NULL Convention Logic (NCL) paradigm. This work helps to build a library of reusable components to aid in the integration of asynchronous design paradigms, like NCL, into the semiconductor design industry.

A number of 4-bit x 4-bit unsigned multipliers are designed and characterized in terms of speed and area. The architectures under consideration are bit-serial, iterative, and fully parallel multiplication. The bit-serial and iterative multipliers are developed in the dual-rail domain, while the fully parallel architecture is designed in the quad-rail domain and compared to its equivalent dual-rail version, which was developed previously.

Furthermore, a number of 4-bit, 8-operation parallel arithmetic logic units (ALUs) are designed in the quad-rail domain, and are characterized in terms of speed and area. These versions include a non-pipelined design, an optimally pipelined design, a non- pipelined design utilizing NULL Cycle Reduction (NCR), a non-pipelined design with embedded registration, and a NULL Cycle Reduced non-pipelined design with embedded registration. Applying NCR to either non-pipelined quad-rail ALU significantly increases throughput compared to directly pipelining the ALU, while requiring approximately the same area. These quad-rail versions are then compared to their respective previously developed dual-rail counterparts"--Abstract, page iii.

Advisor(s)

Smith, Scott C.

Committee Member(s)

Hubing, Todd H.
Beetner, Daryl G.

Department(s)

Electrical and Computer Engineering

Degree Name

M.S. in Computer Engineering

Publisher

University of Missouri--Rolla

Publication Date

Summer 2003

Pagination

x, 67 pages

Note about bibliography

Includes bibliographical references (pages 65-66).

Rights

© 2003 Satish Kumar Bandapati, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

Computer arithmetic and logic unitsComputer programmingLogic circuits

Thesis Number

T 8439

Print OCLC #

55232239

Recommended Citation

Bandapati, Satish K., "Design and characterization of asynchronous delay-insensitive arithmetic components using NULL conventional logic" (2003). Masters Theses. 2449.
https://scholarsmine.mst.edu/masters_theses/2449