User's Manual

January 2010 - 8 -
Mini Satellite Board
In addition, most Tegra 250 devkits include the “mini satellite board”, which replicates the main
power, reset and recovery buttons, adds a UART serial port for low-level debugging on some
OSes, and switches and LEDs for common “smartbook” features like lid close, wifi on/off, etc.
An appendix at the end of this document provides connection instructions. The board is
pictured below:
• UART serial port. Standard serial port for use with some OS images for low-level
logging and debugging
• Power, reset, recovery buttons. Replicated from the main board so that all controls may
be found on the satellite board. Useful if the main board is somehow packaged
• Simulated lid switch. On some OS images, setting this switch causes the device to sleep
• Dual ribbon cables. Connection to the main board
• Wifi, BT, etc status LEDs. Provides activity status of major peripherals
• WiFi switch. Enables/disables WiFi radio
Simulated lid
switch
WiFi switch
Power, reset,
recovery
buttons
Wifi, BT, etc
status LEDs
Dual ribbon
cables to
main board
UART
serial port
[Add the following notice on the mini satellite board (as well as the main
board: Property of NVIDIA Corporation. Not for resale. Return to
NVIDIA upon completion of use.]