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User Guide XB1 COM Express Module
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GPIO Usage SIO
XB1 COM Express Module GPIO Usage SIO
GPIO Type Tol. Function Description
GPIO 10 I/O 5V/16mA
1)
MSDAT PS/2 mouse data or custom GPIO
GPIO 11 I/O 5V/16mA
1)
MSCLK PS/2 mouse clock or custom GPIO
GPIO 12 O LPC_DRQSIO# LPC Port DMA request from SIO
GPIO 13 I/O 5V/8mA
1)
not used
GPIO 14 I/O 5V/8mA
1)
not used
GPIO 15 I/O 5V/8mA
1)
not used
GPIO 16 I/O 5V/24mA
1)
not used
GPIO 17 I/O 5V/24mA
1)
not used
GPIO 20 I 5V
1)
GPI0 GPI signal from COM Express module carrier board
GPIO 21 I 5V
1)
GPI1 GPI signal from COM Express module carrier board
GPIO 22 I 5V
1)
GPI2 GPI signal from COM Express module carrier board
GPIO 23 I 5V
1)
GPI3 GPI signal from COM Express module carrier board
GPIO 24 OC 10k/3.3V 24mA GPO0 GPO signal to COM Express module carrier board
GPIO 25 OC 10k/3.3V 24mA GPO1 GPO signal to COM Express module carrier board
GPIO 26 OC 10k/3.3V 24mA GPO2 GPO signal to COM Express module carrier board
GPIO 27 OC 10k/3.3V 24mA GPO3 GPO signal to COM Express module carrier board
1)
These GPIOs have pullup resistors of approx. 50kΩ within the SIO
italic blue –> signal available on J-COM
italic green –> signal available on P-SIO