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2.4
2.5
2.6
2-4
Powering Up the Board
The AT91SAM9XE-EK requires 5V DC (±5%). DC power is supplied to the board via the 2.1 mm by 5.5
mm socket J1. Coaxial plug center positive standard.
Backup Power Supply
The user has the possibility to plug a battery (3V Lithium Battery CR1225 or equivalent) in order to per-
manently power the backup part of the device. In this case, J10 configuration must be set in position 1, 2.
Refer to Section 4.1 .
Getting Started
The AT91SAM9XE-EK evaluation board is delivered with a CD-ROM containing all necessary informa-
tion and step-by-step procedures for working with the most common development toolchains. Please
refer to this CD-ROM, or to the AT91 web site, http://www.atmel.com/products/AT91/, for the most up-to-
date information on getting started with the AT91SAM9XE-EK.
AT91SAM9XE-EK Evaluation Board User Guide
6311A–ATARM–04-Feb-08
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