Altera PowerPlay Early Power Estimator - Manual (Page 40)

3–22 Altera Corporation
PowerPlay Early Power Estimator For Stratix II, Stratix II GX & HardCopy II January 2007
PowerPlay Early Power Estimator Inputs
Data Rate Select either SDR or DDR as the I/O data rate. This indicates whether the I/O value is
updated once (SDR) or twice (DDR) a cycle. If the data rate of the pin is DDR, it is
possible to set the data rate to SDR and double the toggle percentage. The Quartus II
software often uses this method to output information.
Bank I/O Std Check This indicates whether the selected I/O standard is available on the selected I/O bank.
Not all I/O banks can implement every I/O standard.
Bank Voltage Check This indicates whether or not the selected I/O bank has a voltage compatible with the
selected I/O standard.
Thermal Power (W),
Routing This shows the power dissipation due to estimated routing (in W).
Routing power is highly dependent on placement and routing, which is itself a function
of design complexity. The values shown are representative of routing power 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. This value is calculated automatically.
Thermal Power (W),
Block This shows the power dissipation due to internal and load toggling of the I/O (in W).
Use the Quartus II PowerPlay Power Analyzer for accurate analysis based on the
exact I/O configuration of your design. This value is calculated automatically.
Thermal Power (W),
Total This shows the total power dissipation (in W). The total power dissipation is the sum
of the routing and block power. This value is calculated automatically.
Supply Current (A),
I
C C I N T
This shows the current drawn from the I
CCINT
rail. Powers internal digital circuitry and
routing.This value is calculated automatically.
Supply Current (A),
I
C C P D
This shows the current drawn from the V
CCPD
rail. This rail powers the pre-drive
circuitry and operates at 3.3 V. This value is calculated automatically.
Supply Current (A),
I
C C I O
This shows the current drawn from this bank's V
CCIO
rail. Some of this current may be
drawn into off-chip termination resistors. This value is calculated automatically.
User Comments Enter any comments. This is an optional entry.
Table 3–6. I/O Module Information in the I/O Section (Part 3 of 3)
Column Heading Description