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January 2010
• Expansion board connectors. “Header” connections for an expansion board (supplied) that
adds status LEDs, copies of the power, reset and recovery buttons, and a serial port.
• “ACOK” configuration switch. A configuration micro-switch that is used to adjust the power
behavior of the devkit. In the left (BATT) position, the AC adapter simulates a battery, and the
soft power button functions normally. In the right (NORM) position, applying power causes the
device to turn on, without pressing the power button. The left (BATT) position is preferred for
developers.
• Power button. Pressing this switch will toggle the power to the device on and off
• Recovery (flashing) button. Used to place the devkit in a special mode that leaves it ready to
receive a new operating system image via USB (“recovery” mode)
• Reset button. Soft reset
• Microphone jack. Stereo microphone input as a 1/8” phone jack
• Headphone jack. Stereo headphone output as a 1/8” phone jack
• Ethernet jack. Wired networking if supported by the OS
• SD card slot. Supports normal and high-capacity SD card storage
• USB-mini jack. USB jack for flashing the device (updating OS images) and connecting the device
to a host PC.
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