DK-MAXII-1270N Altera, DK-MAXII-1270N Datasheet - Page 21

• Manufacturer Part Number: DK-MAXII-1270N
• Description: KIT DEV MAXII W/EPM 1270N
• Manufacturer: Altera
• Series: MAX® IIr
• Type: CPLDr

Specifications of DK-MAXII-1270N

• Contents: Dev Board, Quartus®II Web Edition, Nios®II Web Edition, Cables, Accessories, Reference Designs and Demos
• Silicon Manufacturer: Altera
• Core Architecture: CPLD
• Core Sub-architecture: MAX
• Silicon Core Number: EPM
• Silicon Family Name: MAX II
• Rohs Compliant: Yes
• For Use With/related Products: MAX®II CPLDs
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 544-2380

Altera Corporation
July 2005
f
then the power. Similarly, the current drawn by V
R95 and R99. Using the same technique as described for V
you to calculate the total power being consumed by the MAX II device.
1
On-Board Circuit
The MAX II device current draw is measured across two 0.33 ohm
resistors via a current sense device. The output of this device is fed to an
A/D converter that generates a digital (serial) output to the MAX II
device. The value of this number provides an indication of the current
that is consumed by the MAX II device, allowing you to determine how
much power the MAX II device is consuming.
Refer to the MAX II Development Board Data Sheet and the MAX II
development board schematics for more information about the on-board
circuitry.
Using the Demo
To use this demo, first program the MAX II device with the
LowPowerDemo.pof file in the <install directory>/Examples/
HW/Demos directory. (Refer to
page 2–4
After programming finishes, the LCD will read:
The switches control the operation of this demo:
■
■
■
■
Current Is 24 mA
000 FF’s
Switch 1 = reset
Switch 2 = increase the number of flip-flops that are toggling by 150
Switch 3 = decrease the number of flip-flops that are toggling by 150
Switch 4 = double the rate at which the flip-flops are toggling
Development Kit Version 1.1.0
This circuit uses resistors with a specified variance of 5%, which
means that the power measurement is not precise. This circuit is
provided to give users a general understanding of the MAX II
device power consumption. Users who need a precise power
measurement should remove the resistors and measure the
current with a multimeter across one of the pads where R109
and R113 reside. Users concerned with power consumption
should also consult the Understanding & Evaluating Power in
MAX II Devices chapter of the MAX II Device Handbook.
for details on how to load POF files into the MAX II device.)
MAX II Development Kit Getting Started User Guide
“Programming the MAX II Device” on
CCIO
is measured across
Getting Started
CCINT
allows
2–13