
Section 4
Jumpers
4.1
Jumpers
Table 4-1. Jumpers Configuration
Designation
J2
J3
J5
J6
J8
J10
J11
J12
J13
Default Setting
Closed
Closed
Closed
Closed
Closed
Closed
1-2
Closed
Closed
Feature
Forces power on.
To use the software shutdown control, J3 must be opened. 3V battery
backup must be present.
BMS (Boot Mode Select)
1-2: Internal ROM
2-3: NCS0
Enables the use of the embedded NAND FLASH device (MN7)
Enables the use of the embedded SERIAL DATAFLASH device (MN8)
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 ammeter.
4.2
JTAG/ICE
Table 4-2. JTAG/ICE Configuration
Designation
S1
R11
R13
Default Setting
Opened
Soldered
Soldered
Feature
Selects ICE mode or JTAG mode
Enables the ICE NTRST input
Enables the ICE NRST input
AT91SAM9RL-EK Evaluation Board User Guide
4-1
6325C–ATARM–22-Jul-10