Power Manager II
Hercules Development Kit
Done!
Congratulations! You have successfully demonstrated the Power Manager II Hercules Develop-
ment Kit. Please refer to the Power Manager II Hercules Development Kit User’s Guide available
on the Lattice web site at www.latticesemi.com/herculesdevkit for the following:
• Running advanced demos, including voltage monitoring, via I
2
C using the POWR1220AT8
• Details on additional development board features and operation
• Modifying the generating the demo program files from the PAC-Designer
®
project sources
• Schematics
• Gerber PCB layout artwork
Technical Support
If you experience problems running the kit demos please refer to the Troubleshooting appendix in
the Power Manager II Hercules Development Kit User’s Guide. If problems persist or if any kit
contents are missing, please email us at [email protected] or call 1-800-528-8423 (USA)
or +1 503-268-8001 (other locations).
QS008
November 2010
latticesemi.com
Copyright © 2010 Lattice Semiconductor Corporation. Lattice Semiconductor, L (stylized)
Lattice Semiconductor Corp., and Lattice (design), ispPAC, LatticeMico8, MachXO and
PAC-Designer are either registered trademarks or trademarks of Lattice Semiconductor
Corporation in the United States and/or other countries. Other product names used in this
publication are for identification purposes only and may be trademarks of their respective
companies.
When the mode switch (SW3) is pressed the value is computed from the DIP switch settings and
stored as a target value for the closed loop trim. Note: the trimming of the 1.2V supply is limited
to +/- 150mV of 1.2V based on Trim-DAC range and interface circuits. Not all positive VID
values inside this range can be realized. The guaranteed positive VID range is 110mV, or a setting
of 1011b.
• Demo 5b: VID Supply Shut-Down – Setting DIP switch 5 to a logic zero (0) and pressing the
mode switch (SW3) will result in disabling the 1.2V supply. Setting DIP switch 5 to a logic one
(1) and pressing the mode switch (SW3) will enable the 1.2V supply. Note: Without an external
load, the output of the 1.2V DC-DC supply will float up to a few tenths of a volt.
