Accurate high level datapath power estimation

Author

Crenshaw, James E. ; Sarrafzadeh, Majid

Author_Institution

Dept. of Electr. & Comput. Eng., Northwestern Univ., Evanston, IL, USA

fYear

1997

fDate

17-20 Mar 1997

Firstpage

590

Lastpage

596

Abstract

The cubic switching table is a new data structure for estimating datapath switching at a high level. It is constructed during behavioral simulation, and is used to estimate the switching for any particular datapath schedule and binding. Time to extract the estimate from the table is independent of the original simulation size. For n operations in the RTL description, it takes O(n³) time to perform the extraction. We show that an exact switching table would require exponential size, but experimental results show that the cubic table is accurate, with typical error under 5%

Keywords

CMOS logic circuits; circuit analysis computing; data structures; hardware description languages; high level synthesis; RTL description; behavioral simulation; cubic switching table; data structure; datapath power estimation; datapath switching; exact switching table; simulation size; CMOS logic circuits; Computational modeling; Data structures; Hardware design languages; Leakage current; Libraries; Power generation; Resource management; Switches; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

European Design and Test Conference, 1997. ED&TC 97. Proceedings

Conference_Location

Paris

ISSN

1066-1409

Print_ISBN

0-8186-7786-4

Type

conf

DOI

10.1109/EDTC.1997.582421

Filename

582421