Altera PowerPlay Early Power Estimator - Manual (Page 28)

3–10 Altera Corporation
PowerPlay Early Power Estimator For Stratix II, Stratix II GX & HardCopy II January 2007
PowerPlay Early Power Estimator Inputs
Figure 3–5 shows the device PowerPlay Early Power Estimator
spreadsheet and the estimated power consumed by the logic in this
design.
Figure 3–5. Logic Section in the PowerPlay Early Power Estimator
RAM Blocks
Stratix II and Stratix II GX device TriMatrix ™ memory consists of three
types of RAM blocks: M512, M4K, and M-RAM blocks. The power
consumption for each type of RAM block is different and must be
specified in the RAM section of the PowerPlay Early Power Estimator.
HardCopy II devices contain two types of RAM blocks: M4K and
M-RAM.
Each row in the RAM section represents a design module where the RAM
block(s) are the same type, have the same data width, RAM mode, and the
same port parameters. If some or all of the RAM blocks in your design
have different configurations, enter the information in different rows. For
each design module, you need to enter the type of RAM being
implemented, the number of RAM blocks, and the RAM block mode. You
must also enter the following parameters for each port:
■ Clock frequency (in MHz)
■ The percentage of time the RAM clock is enabled
■ The percentage of time the port is writing compared to reading