20.2.17 Cycle-Accurate Power Reports

Traditional power analysis based on a VCD simulation file reports an average power for the entire simulation time. Based on a VCD simulation file, the cycle-accurate power analysis will report one power value per clock period (or half-period) instead of an average power for the whole simulation. This feature allows to easily identify the worst cycle in terms of power performance; and helps to understand and further minimize power consumption by facilitating the analysis of data-dependent power variations, as well as dynamic power variations due to clock-gating, or even clock frequency variations.

To generate a cycle-accurate power report:

1. From the Designer Tools menu, select Reports > Power > Power Cycle Accurate. The Cycle Accurate Power Report dialog box appears.
2. Select the options you want to include in the report, and then click OK. The cycle accurate power report appears in a separate window.

You can also generate the cycle accurate power report from within SmartPower. From the Tools menu, select Reports > Cycle Accurate Power Report to open the cycle accurate power report dialog box; or select a vcd file from the Modes and Scenarios toolbar, and from the right-click menu, select Tools > Power Cycle Accurate.

The cycle-accurate power report dialog box is organized in the following panels: General, Sampling Period, Partial Parsing, Top-Level Name, Glitch Filtering, and History Size Reduction.