User manual

AT91SAM9260-EK Evaluation Board User Guide 4-1
6234C–ATARM–22-Mar-07
Section 4
Configuration
4.1 Jumpers
Note: 1. These jumpers are provided for power consumption measurement use. By default,
they are closed. To use this feature, the user has to open the strap and insert an
anmeter.
Table 4-1. Jumpers Configuration
Designation
Default
Setting Feature
JP2 Closed 3.3V Jumper
(1)
JP3 Closed Forces power on.
To use the software shutdown control, J3 must be
opened. 3V battery backup must be present and J10
jumper set in position 1-2
JP6 Closed VDDPLL Jumper
(1)
JP7 Opened Enables boot on the internal ROM
Closed Enables boot on the NCS0
JP9 2 - 3 Slow Clock OSCSEL
1-2: Internal RC Oscillator
2-3: External Crystal Oscillator
JP10 2 - 3 VDDBU Jumper select
(1)
1-2: Lithium 3V Battery
2-3: 1.8V from VDDCORE
JP12 Closed VDDCORE Jumper
(1)
JP15 Closed Enables Ethernet Auto MDIX control