Altera Cyclone II PowerPlay Early Power Estimator - Manual (Page 47)

Altera Corporation 3–31
May 2006 PowerPlay Early Power Estimator User Guide For Cyclone II FPGAs
Using the Cyclone II PowerPlay Early Power Estimator
Table 3–11 describes the parameters in the Power Supply Current
parameters of the PowerPlay Early Power Estimator spreadsheet.
Table 3–11. Power Supply Current Information
Column Heading Description
I
CC
INT This shows the total current drawn from the I
CCINT
supply (in A).
I
CC
IO This shows the total current drawn from the I
CCIO
power rail(s). See the I/O sheet for
details on the current drawn from each I/O rail.
I
C C I O
includes any current drawn through the I/O into off-chip termination resistors.
This can result in I
C C I O
values that are higher than the reported I/O thermal power,
since this off-chip current is dissipated as heat elsewhere and does not factor into the
calculation of device temperature.