Galileo Quark SoC X1000 Getting Started Manual page 4

The top side of the Galileo is where the vast majority of the action is, including:
Ethernet – Connects the Galileo up to any 10/100 Mb/s LAN.
RS-232 Port – In a weird, 3.5mm "stereo" jack form factor. The sleeve is ground, ring is TX,
and tip is RX. With the proper cables, this can be used to access the Linux terminal.
USB Client – Connect this to your computer to program the Galileo with Arduino.
USB 2.0 Host – This supports an interface with USB devices like keyboards, mass storage,
etc. With a USB hub, up to 128 devices can be connected to this port.
Standard Arduino connectors:
8-pin power header (3.3V, 5V, GND, Reset, etc.)
6-pin analog input header (A0-A6)
8-pin digital I/O header (D0-D7), which includes UART on pins 0/1, PWM on pins 3, 5,
and 6
10-pin digital I/O header (D8-SCL), which includes I
11.
2x3-pin ICSP header breaks out SPI pins.
Reboot Button – Pressing this button will reboot the entire Galileo – Linux included. Boot
time is about 30 seconds, so don't press this accidentally!
Pin 13 LED – As with most Arduinos, the Galileo ties a small, on-board LED to pin 13. Great
for the Blink sketch!
Arduino Reset Button – This will restart solely the Arduino sketch running on the Galileo.
This button acts much more like the reset button you may be used to.
µSD Card – The Galileo supports up to 32GB SD cards. You'll have to use this socket if you
hope to boot the Galileo off the
5V Power In – This is a center-positive, 2.1mm barrel jack for a clean, regulated 5V supply.
The power supply should be included with your Galileo.
"bigger" Linux image.
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C pins and PWM on pins 9, 10, and