Register-transfer-level power estimation based on technology decomposition

2003 ◽  
Vol 150 (5) ◽  
pp. 411 ◽  
Author(s):  
C. Chen ◽  
M. Ahmadi
Keyword(s):  
Power Estimation ◽  
Register Transfer Level ◽  
Register Transfer

scholarly journals Backward Propagated Capacitance Model for Register Transfer Level Power Estimation

VLSI Design ◽  
2001 ◽  
Vol 12 (2) ◽  
pp. 221-231
Author(s):  
Jung Yun Choi ◽  
Young Hwan Kim ◽  
Kyoung-Rok Cho
Keyword(s):  
Power Consumption ◽  
Power Estimation ◽  
Register Transfer Level ◽  
Functional Modules ◽  
Modeling Error ◽  
Input Capacitance ◽  
Proposed Model ◽  
Register Transfer ◽  
Capacitance Model ◽  
The Absolute

We present a new approach to the power modeling of functional modules, referred to as the backward propagated capacitance model, for estimating the power consumption of VLSI systems that are described at the register transfer level (RTL). To construct the proposed model, we investigate the effect of the module's internal capacitance on power consumption at the gate level. Then, we store the effect in a library in terms of the equivalent input capacitance of the module. The equivalent input capacitance is used to compute the module's power without the lower level elaboration during the power analysis of the RTL system. In the experiment using benchmark functional modules, the proposed model showed the absolute modeling error of 1.39% on average. For the benchmark RTL systems, the proposed model exhibited the absolute error of 3.04% in power estimation on average. If signal characteristics deviate from the modeling condition, the modeling error may increase. Experimental results show that the modeling accuracy can be improved greatly by using a simple compensation method.

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