Altera PowerPlay Early Power Estimator - Manual (Page 16)

2–6 Altera Corporation
PowerPlay Early Power Estimator For Stratix II, Stratix II GX & HardCopy II January 2007
Entering Information into the PowerPlay Early Power Estimator
• Family
• Device
• Package
• Temperature grade
• Power characteristics
• Ambient or junction temperature
• Airflow
• Heat sink
• Custom
θ
SA
or custom
θ
JA
• Board thermal model
• Custom
θ
JB
• Board temp T
B
The ambient or junction temperature, airflow, heat sink, custom
θ
SA
or
custom θ
JA
, board thermal model, custom θ
JB
, and board temperature T
B
parameters are optional. See “Main Input Parameters” on page 3–1 for
more information on these parameters.
The f
MAX
values imported into the PowerPlay Early Power Estimator
spreadsheet are the same as the f
MAX
values specified by the designer in
the Quartus II software. You can manually edit the f
MAX
and the toggle
percentage in the PowerPlay Early Power Estimator spreadsheet to suit
your system requirements.
Importing Information from PowerPlay Early Power Estimator
v6.0
If you already have an existing version 6.0 PowerPlay Early Power
Estimator file, you can import the data directly into version 6.1 of the
PowerPlay Early Power Estimator spreadsheet using the Import Legacy
feature. This can save time and effort otherwise spent manually entering
information into the PowerPlay Early Power Estimator.
To import data from legacy versions of the PowerPlay Early Power
Estimator, perform the following steps:
1. Click the Import EPE v6.0 button.
2. Browse to the EPE and click Open.
3. Click OK. Clicking OK acknowledges that the import is complete.
Clicking OK clears any user-entered values and populates the PowerPlay
Early Power Estimator spreadsheet with device resource information
from the specified PowerPlay Early Power Estimator spreadsheet legacy
version file.