AT91EB40 Atmel, AT91EB40 Datasheet - Page 8

• Manufacturer Part Number: AT91EB40
• Description: AT91 ARM X40 SERIES EVAL KIT
• Manufacturer: Atmel

Specifications of AT91EB40

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Setting Up the AT91EB40 Evaluation Board
2.4
2.5
2-2
Jumper Settings
Powering Up the
Board
Figure 2-1. Layout of the AT91EB40 Evaluation Board
LK2 is used to select the clock frequency and by default, is set to 32,768 MHz. For more
information about this jumper and the various surface mount links, see Section 5,
“Appendix A – Configuration Links and SRAM Bank 1” on page 5-1.
DC power is supplied to the board via the 2.1 mm socket (J4) shown below in Figure 2-
2. The polarity of the power supply is not critical. The minimum voltage required is 7V.
Figure 2-2. 2.1 mm Socket
The board has a voltage regulator providing +3.3V. The regulator allows the input volt-
age to be from 7 V to 9V. When you switch the power on, the red LED marked “POWER”
will light up. If it does not, switch off and check the power supply connections.
positive (+)
or
negative (-)
2.1 mm connector
LK2
AT91EB40 Evaluation Board User Guide