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Steering logic includes multiplexers. They are treated in the same
fashion as RTL DPUs. The power consumption is based on their RTL
power macro-model [1]. The power models play a
similar role that power-pattern tables play for wire power
estimation. They record the energy consumption figures for
different input switchings. By profiling the input trace, we can
get the total power consumption by simply counting all different
switchings. Just as in the case of wires, the input switching
activity of steering logic depends on the output switching
activity of functional units and registers, and hence on binding
given a schedule.
Lin Zhong
2003-10-11