Atmel Evaluation Kit AT91SAM9G20-EK AT91SAM9G20-EK Fiche De Données

6413C–ATARM–18-Feb-09

Note:

1. These jumpers are provided for power consumption measurement. By default, they are closed. To use

this feature, the user has to open the strap and insert an ampere meter.

Table 4-1.  Jumpers Configuration

J2

Closed

3.3V Jumper

J3

Closed

Forces power on. To use the software shutdown control:
• J3 must be opened,
• 3V battery backup must be present,
• J10 jumper set in position 1-2

J6

Closed

VDDPLL Jumper

J7

Open

Enables boot on the internal ROM

Closed

Enables boot on the NCS0

J9

2-3

Slow Clock OSCSEL
1-2: Internal RC Oscillator
2-3: External Crystal Oscillator

J10

2-3

VDDBU Jumper select

1-2: Lithium 3V Battery
2-3: 1.0V from VDDCORE

J12

Closed

VDDCORE Jumper

J15

Closed

Enables Ethernet Auto MDIX control

J33

Closed

Serial DataFlash chip select enable

J34

Closed

NAND Flash chip select enable