Title :
Accurate high level datapath power estimation
Author :
Crenshaw, James E. ; Sarrafzadeh, Majid
Author_Institution :
Dept. of Electr. & Comput. Eng., Northwestern Univ., Evanston, IL, USA
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;
Conference_Titel :
European Design and Test Conference, 1997. ED&TC 97. Proceedings
Conference_Location :
Paris
Print_ISBN :
0-8186-7786-4
DOI :
10.1109/EDTC.1997.582421
