Power model status for supported device families – Altera PowerPlay Early Power Estimator User Manual
Page 5
Power Model Status for Supported Device Families
The power models in the PowerPlay EPE spreadsheet are either in preliminary or final status. Preliminary
power models are subject to change. Preliminary power models are created based on simulation results,
process data, and other known parameters. The final power models are created based on a complete
correlation to the production device. If the power models are final, there are no further changes to the
power models. The power model status for the device will be shown in the Main worksheet of the
PowerPlay EPE spreadsheet.
For the majority of the designs, the PowerPlay Power Analyzer and the PowerPlay EPE spreadsheet have
the following accuracy after the power models are final:
• PowerPlay Power Analyzer: ± 20% from silicon, assuming that PowerPlay Power Analyzer uses the
Value Change Dump File (
.vcd
) generated toggle rates
• PowerPlay EPE spreadsheet: ± 30% from silicon, assuming PowerPlay EPE data imported from
PowerPlay Power Analyzer results using
.vcd
generated toggle rates
The toggle rates are derived using the PowerPlay Power Analyzer with a
.vcd
file generated from a gate
level simulation representative of the system operation.
Related Information
1-2
Power Model Status for Supported Device Families
UG-01070
2015.01.20
Altera Corporation
PowerPlay Early Power Estimator Overview