10 gpio, 11 usb, 10 gpio 4.11 usb – Artesyn COMX-P1022 Installation and Use (July 2014) User Manual
Page 68: Table 4-4, Gpio description, Functional description
Functional Description
COMX-P1022 COM Express Module Installation and Use (6806800M04C)
68
4.10 GPIO
4.11 USB
The P1022 has two USB interfaces. USB1 is a host-only interface and USB2 may be a host or
device interface.
P1022 uses USB2 as the only USB host controller. There is one USB PHY (USB3315) connected
to USB2 host interface via ULPI interface and then one 4-ports USB hub (USB2514) connected
to the USB PHY. Four USB 2.0 ports (USB4~USB7) are provided on the USB hub.
By default, the USB Hub can work well without any configuration, so we won't configure USB
through I2Cbus for this board.
Table 4-4 GPIO Description
GPIO
Function
TRIG_OUT /GPIO3_21
SATA_ACT#
IRQ11/ GPIO3_13
WATCHDOG
TRIG_IN/GPIO3_20
LVDS_ENABLE
UDE1_B/GPIO3_17
LVDS_ENAVDD
POWER_OK/GPIO3_19
LVDS_PWM
IRQ6/GPIO2_31
MUX_I2C
IRQ7/ GPIO3_9
GPI0
IRQ8/ GPIO3_10
GPI1
IRQ9/ GPIO3_11
GPI2
IRQ10/ GPIO3_12
GPI3
MCP0_B/GPIO3_14
GPO0
MCP1_B/GPIO3_15
GPO1
UDE0_B/GPIO3_16
GPO2
READY_P1/GPIO3_22
GPO3
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