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Section 4
Configuration
4.1
Configuration Jumpers and Straps
Table 4-1. Configuration Jumpers and Straps
Designation
J2
J4-1
J4-2
J5-1
J5-2
J5-3
J5-4
J5.5
J5-6
J16
J21
S1
S2
S3
R17
R18
R13
R15
R30
R45
R46
R75
R79
R84
Default Setting
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Opened
Closed
Closed
Closed
Opened
Opened
Opened
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
Feature
Forces power on. To use the software shutdown control, J2 must be
opened and the battery backup inserted in its socket.
VDDBU jumper (1)
VDDCORE jumper (1)
VDDOSC jumper (1)
VDDIOP0 jumper (1)
VDDIOP1 jumper (1)
VDDIOM0 jumper (1)
VDDIOM1 jumper (1)
Enables Boot on the internal ROM
Enables Boot on the NCS0
Enables 120 ohms CAN bus resistance termination
Enables Ethernet Auto MDIX control
Selects ICE mode. See Section 7 , “Errata”
Disables NAND FLASH write protect
Disables 5V power supply on J24, J25 expansion connectors
Enables the ICE NTRST input
Enables the ICE NRST input
Enables the use of the Y1 crystal. If an external clock has to be used,
R13 and R15 must be unsoldered and R16/J16 fitted.
Enables the use of the MN7 SDRAM device. Needs to be removed
when ETM is used. (2)
Enables the use of the SERIAL EEPROM SCL (PB5)
Enables the use of the SERIAL EEPROM SDA (PB4)
Enables the use of the DBGU TXD signal (PC31)
Enables the use of the DBGU RXD signal (PC30)
Enables the use of the USB CNX detection (PA25)
AT91SAM9263-EK Evaluation Board User Guide
4-1
6325D–ATARM–26-Aug-09
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