Atmel AT91SAM7X-EK, User Manual

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Configuration Straps
4-2 AT91SAM7X-EK Evaluation Board User Guide
6195E–ATARM–22-Mar-07
Note: 1. These jumpers are provided for measuring power consumption. By default, they are
closed. To use this feature, the user has to open the strap and insert an anmeter.
S4 - S5 Closed Enables the use of 18.432MHz crystal. Must be open if an
external clock is used.
S6 Closed Enables the Power Led control (PB25).
S7 Opened Disables Serial DataFlash write protect.
S8 Closed Enables the use of the TXD CAN transceiver (PA20)
S9 Closed Enables the use of the RXD CAN transceiver (PA19)
S10 Closed Enables control of the Standby/Normal mode for CAN
transceivers (PA2)
S11 Opened Enables control of the Standby/Normal mode for CAN
transceivers (PA2).
If S11 is closed, S10 must be open.
S12 Closed Enables the use of PWM3 Analog Output (PB30)
S13 Closed Enables the use of the TXD0 signal (PA1)
S14 Closed Enables the use of the RTS0 signal (PA3)
S15 Closed Enables the use of the RXD0 signal (PA0)
S16 Closed Enables the use of the CTS0 signal (PA4)
S17 Closed Enables the use of the User LED DS1 (PB19)
S18 Closed Enables the use of the User LED DS2 (PB20)
S19 Closed Enables the use of the User LED DS3 (PB21)
S20 Closed Enables the use of the User LED DS4 (PB22)
S21 Closed Enables the use of the DBGU TXD signal (PA28)
S22 Closed Enables the use of the DBGU RXD signal (PA27)
S23 Opened
ETHERNET MII is the default mode. To evaluate the RMII
mode, the user change S23 to S26 configuration in the
following way: S23 Closed, S24 Opened, S25 Closed, S26
Opened
S24 Closed
S25 Opened
S26 Closed
S27 Opened Reserved
S28 Closed Enables the use of the SCL of MN11 (PA11)
S29 Closed Enables the use of the SDA of MN11 (PA10)
TP1 N.A GND Test point.
TP2 N.A GND Test point.
Table 4-1. Configuration Jumpers and Straps (Continued)
Designation
Default
Setting
Feature