Atmel MCU Evaluation Kit AT91SAM7X-EK AT91SAM7X-EK Data Sheet
Product codes
AT91SAM7X-EK
AT91SAM7X-EK Evaluation Board User Guide
4-1
6195E–ATARM–22-Mar-07
Section 4
Configuration Straps
4.1
Configuration
Straps
Straps
Table 4-1. Configuration Jumpers and Straps
Designation
Default
Setting
Setting
Feature
J8
Opened
Erases all internal Flash memory when the board is
powered. To do that, the user will have to close the J8 at
least 200 ms.
powered. To do that, the user will have to close the J8 at
least 200 ms.
J9
Opened
Do not use: Factory test mode. J9 is not populated
J10
Opened
Selects ICE mode or JTAG mode (Closed). J10 is not
populated.
populated.
J11
Closed
VDDIN Jumper
J12
Closed
VDDFLASH Jumper
J13
1-2
ADVREF Jumper select
1-2: 3.00V Voltage reference
2-3: VDDANA
1-2: 3.00V Voltage reference
2-3: VDDANA
J14
Closed
VDDCORE Jumper
J15
Closed
VDDIO Jumper
J17
Opened
External XIN clock input.
S4 and S5 must be open.
J17 is not populated.
S4 and S5 must be open.
J17 is not populated.
J18
Closed
VDDPLL Jumper
J19
Closed
Enables the use of the NPCS00 (PA12).
J21
Closed
Enables 120 ohms CAN bus resistance termination.
J28
Closed
Enables Ethernet Auto MDIX control.
S1
Closed
Enables permanent pull up on USB DP.
S2
Closed
The System Reset signal (NRST) is connected to the
ICE/JTAG socket (J7, pin 15).
ICE/JTAG socket (J7, pin 15).
S3
Opened
Disables 5V (VUSB) power supply on J16 extension
connector.
connector.