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