Chapter 17: Understanding and Evaluating Power in MAX II Devices
17–7
PowerPlay Early Power Estimator Inputs
Table 17–3. Logic Section Information (Part 2 of 2)
Column Heading
Description
Routing
Represents the power dissipation due to estimated routing.
Routing power is highly dependent on placement and routing, which itself is a function of
design complexity. The values shown are representative of routing power average based on
experimentation on over 100 real-world designs.
Use the Quartus II PowerPlay Power Analyzer for detailed analysis based on the routing used
in your design.
Block
Represents the power dissipation due to internal toggling of the LEs.
Logic block power is a function of the function implemented and relative toggle rates of the
various inputs. The PowerPlay Early Power Estimator spreadsheet uses an estimate based on
observed behavior across over 100 real-world designs.
Use the Quartus II PowerPlay Power Analyzer for an accurate analysis based on the exact
synthesis of your design.
Total
Represents the total power dissipation. The total power dissipation is the sum of the routing
and block power.
User Comments
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Figure 17–6. T-Flipflop
Figure 17–7. 4-Bit Counter
© October 2008 Altera Corporation
MAX II Device Handbook
ALTERA [ ALTERA CORPORATION ]
