VERSION 0.9
X220 (38339-X)
UART3 (J10)
This is a 6 pin connector with 1.25 mm pitch.
FAN (J8)
This is a 4 pin connector with 1.25 mm pitch.
Extension Port (J20)
This is a 80 pin board to board connector with 1.25 mm pitch. You need a extra add on module to use several
features.
Pin
Function
GPIO
Description
1
5.0V
-
5.0V power supply
2
UART3_TX_Debug
-
UART3_TXD_Debug 1.8V
3
UART3_RX_Debug
-
UART0_RXD_Debug 1.8V
4
GPIO13
-
GPIO13_out 3V3
5
GPIO04
-
GPIO4_IN 3V3
6
GND
-
Ground
Pin
Function
Description
1
GND
Ground
2
5V
5V power supply to the fan
3
FAN_TACH
tachometer from the fan (open drain input with 100k pull-up to 1.8V)
4
FAN_PWM
PWM control to the fan (open drain output: controlled by FAN_PWM and „disable
fan“ with GPIO19 - F2)
AUVIDEA GMBH
TECHNICAL REFERENCE MANUAL
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