Register-Transfer Module Selection for Sub-Micron ASIC Design

Vasily G. MOSHNYAGA; Yutaka MORI; Keikichi TAMARU

Register-Transfer Module Selection for Sub-Micron ASIC Design

Vasily G. MOSHNYAGA, Yutaka MORI, Keikichi TAMARU

Full Text Views

0

Share
Cite this

Summary :

In order to shorten the time-to-market, Application-Specific Integrated Circuits (ASIC's) are designed from a library of pre-defined layout implementations for register-transfer modules such as multipliers, adders, RAM, ROM, etc. Current approaches to selecting the implementations from the library usually deal with their timing-area estimates and do not consider delay of the intermodule wiring. However, as sub-micron design rules are utilized for IC fabrication, wiring delay becomes comparable to the functional unit delay and can not longer be ignored even in register-transfer synthesis. In this paper we propose an algorithm that combines module selection with Performance-Driven module placement and reduces an impact of wiring on sub-micron ASIC performance. The algorithm not only efficiently exploits multiple module realizations in the design library, but also finds the module placement which minimizes wiring delay. Experimental results on several benchmarks show that considering both module and wiring issues, more than 30% reduction of the total circuit delay can be achieved.

Publication: IEICE TRANSACTIONS on Information Vol.E78-D No.3 pp.252-255

Publication Date: 1995/03/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section LETTER (Special Issue on Synthesis and Verification of Hardware Design)

Category

Cite this

Copy

Vasily G. MOSHNYAGA, Yutaka MORI, Keikichi TAMARU, "Register-Transfer Module Selection for Sub-Micron ASIC Design" in IEICE TRANSACTIONS on Information, vol. E78-D, no. 3, pp. 252-255, March 1995, doi: .
Abstract: In order to shorten the time-to-market, Application-Specific Integrated Circuits (ASIC's) are designed from a library of pre-defined layout implementations for register-transfer modules such as multipliers, adders, RAM, ROM, etc. Current approaches to selecting the implementations from the library usually deal with their timing-area estimates and do not consider delay of the intermodule wiring. However, as sub-micron design rules are utilized for IC fabrication, wiring delay becomes comparable to the functional unit delay and can not longer be ignored even in register-transfer synthesis. In this paper we propose an algorithm that combines module selection with Performance-Driven module placement and reduces an impact of wiring on sub-micron ASIC performance. The algorithm not only efficiently exploits multiple module realizations in the design library, but also finds the module placement which minimizes wiring delay. Experimental results on several benchmarks show that considering both module and wiring issues, more than 30% reduction of the total circuit delay can be achieved.
URL: https://globals.ieice.org/en_transactions/information/10.1587/e78-d_3_252/_p

Copy

@ARTICLE{e78-d_3_252,
author={Vasily G. MOSHNYAGA, Yutaka MORI, Keikichi TAMARU, },
journal={IEICE TRANSACTIONS on Information},
title={Register-Transfer Module Selection for Sub-Micron ASIC Design},
year={1995},
volume={E78-D},
number={3},
pages={252-255},
abstract={In order to shorten the time-to-market, Application-Specific Integrated Circuits (ASIC's) are designed from a library of pre-defined layout implementations for register-transfer modules such as multipliers, adders, RAM, ROM, etc. Current approaches to selecting the implementations from the library usually deal with their timing-area estimates and do not consider delay of the intermodule wiring. However, as sub-micron design rules are utilized for IC fabrication, wiring delay becomes comparable to the functional unit delay and can not longer be ignored even in register-transfer synthesis. In this paper we propose an algorithm that combines module selection with Performance-Driven module placement and reduces an impact of wiring on sub-micron ASIC performance. The algorithm not only efficiently exploits multiple module realizations in the design library, but also finds the module placement which minimizes wiring delay. Experimental results on several benchmarks show that considering both module and wiring issues, more than 30% reduction of the total circuit delay can be achieved.},
keywords={},
doi={},
ISSN={},
month={March},}

Copy

TY - JOUR
TI - Register-Transfer Module Selection for Sub-Micron ASIC Design
T2 - IEICE TRANSACTIONS on Information
SP - 252
EP - 255
AU - Vasily G. MOSHNYAGA
AU - Yutaka MORI
AU - Keikichi TAMARU
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E78-D
IS - 3
JA - IEICE TRANSACTIONS on Information
Y1 - March 1995
AB - In order to shorten the time-to-market, Application-Specific Integrated Circuits (ASIC's) are designed from a library of pre-defined layout implementations for register-transfer modules such as multipliers, adders, RAM, ROM, etc. Current approaches to selecting the implementations from the library usually deal with their timing-area estimates and do not consider delay of the intermodule wiring. However, as sub-micron design rules are utilized for IC fabrication, wiring delay becomes comparable to the functional unit delay and can not longer be ignored even in register-transfer synthesis. In this paper we propose an algorithm that combines module selection with Performance-Driven module placement and reduces an impact of wiring on sub-micron ASIC performance. The algorithm not only efficiently exploits multiple module realizations in the design library, but also finds the module placement which minimizes wiring delay. Experimental results on several benchmarks show that considering both module and wiring issues, more than 30% reduction of the total circuit delay can be achieved.
ER -