Power consumption in point-to-point interconnect architectures

As technology shrinks, the importance of the communication architecture in the overall system performance and power consumption increases dramatically. In this work, a framework is developed to estimate the consumption in point-to-point interconnect structures under different anti-crosstalk techniques and bus encoding schemes. To model the effect of cross coupled capacitances, the spatial correlation between adjacent bus lines is considered. Assuming that the data has a Gaussian distribution, both temporal and spatial transition activities are estimated from the signal world level statistics using a polynomial function of the activity in the most significant bit. Analog simulations have been carried out to show the accuracy of the proposed model.