Artesyn COMX-P40x0 ENP2 Installation and Use (January 2015) - Manual (Page 78)

Functional Description
COMX-P40x0 ENP2 Installation and Use (6806800R95C) 78
4.9 GPIO
The COMX-P40x0-ENP2 module supports a total of 20 GPIO pins. The following table lists the
GPIOs:
Table 4-5 GPIO
GPIO name function
CPU_GPIO0 GPI0 of COM Express connectors
CPU_GPIO1 GPI1 of COM Express connectors
CPU_GPIO2 GPI3 of COM Express connectors
CPU_GPIO3 GPI4 of COM Express connectors
CPU_GPIO4 GPO0 of COM Express connectors
CPU_GPIO5 GPO1 of COM Express connectors
CPU_GPIO6 GPO3 of COM Express connectors
CPU_GPIO7 GPO4 of COM Express connectors
CPU_GPIO19 Clock generators enable control
CPU_GPIO20 Carried board reset output
CPU_GPIO23 Clock generator of bank 1
frequency selection
CPU_GPIO24 Clock generator of bank 2-3
frequency selection
IOEXT_GPI5
(PCA9557 I/O0) GPI5 of COM Express connectors
IOEXT_GPI6
(PCA9557 I/O1) GPI6 of COM Express connectors
IOEXT_GPI7
(PCA9557 I/O2) GPI7 of COM Express connectors
IOEXT_GPI8
(PCA9557 I/O3) GPI8 of COM Express connectors
IOEXT_GPO5
(PCA9557 I/O4) GPO5 of COM Express connectors
IOEXT_GPO6
(PCA9557 I/O5) GPO6 of COM Express connectors