Usb Interface Signals - Seco Qseven Q7-C26 User Manual

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3.2.9

USB interface signals

Q7-C26 offers 6x USB ports consisting of 1x USB 3.0 port and 1x USB 2.0 OTG port coming both from the NXP i.MX8 processor, and 4x USB 2.0 host ports

coming from a Microchip USB4604, an USB 2.0 HSIC Hi-Speed 4-Port Hub Controller.

Here following the signals related to USB interfaces.

USBP0+/USBP0-: Universal Serial Bus Port #0 differential pair (coming out from NXP i.MX8 processor USB 2.0 controller).

USBP1+/USBP1-: Universal Serial Bus Port #1 differential pair (coming out from NXP i.MX8 processor USB 2.0 controller).

USBP2+/USBP2-: Universal Serial Bus Downstream Port #2 differential pair (coming out from USB 2.0 hub controller).

USBP3+/USBP3-: Universal Serial Bus Downstream Port #3 differential pair (coming out from USB 2.0 hub controller).

USBP4+/USBP4-: Universal Serial Bus Downstream Port #4 differential pair (coming out from USB 2.0 hub controller).

USBP5+/USBP5-: Universal Serial Bus Downstream Port #5 differential pair (coming out from USB 2.0 hub controller).

USBP6+/USBP6-: Universal Serial Bus Downstream Port #6 differential pair (coming out from USB 2.0 hub controller).

USB_SSRX0+/USB_SSRX0-: USB Super Speed Port #0 receive differential pair (coming out from NXP i.MX8 processor USB 3.0 controller)

USB_SSTX0+/USB_SSTX0-: USB Super Speed Port #0 transmit differential pair (coming out from NXP i.MX8 processor USB 3.0 controller).

USB_0_1_OC#: USB Over Current Detect Input. Active Low Input signal, electrical level +3.3V_RUN with 10k pull-up resistor. This pin is used to monitor the USB

power over current of the USB Ports 0 and 1 of Q7-C26 module

USB_2_3_OC#: USB Over Current Detect Input. Active Low Input signal, electrical level +3.3V_RUN with 10k pull-up resistor. This pin is used to monitor the USB

power over current of the USB Ports 2 and 3 of Q7-C26 module

USB_4_5_OC#: USB Over Current Detect Input. Active Low Input signal, electrical level +3.3V_RUN with 10k pull-up resistor. This pin is used to monitor the USB

power over current of the USB Ports 4 and 5 of Q7-C26 module

USB_6_7_OC#: USB Over Current Detect Input. Active Low Input signal, electrical level +3.3V_RUN with 10k pull-up resistor. This pin is used to monitor the USB

power over current of the USB Ports 6 and 7 of Q7-C26 module

USB_ID: USB ID Input This signal must be driven as an open collector signal by external circuitry placed on the carrier board. It must be tied to GND when USB Port

#1 has to be set to work in Host mode. When not driven, USB Port#1 will work in Client mode.

USB_VBUS: USB Client Connect Pin, electrical level +5V_ALW. When USB Port #1 is set to work in Client mode, then this signal shall be used to inform the USB

controller when an external USB Host is connected (signal High) or disconnected (Signal Low)

USB_OTG_PEN: USB Power enable pin for USB Port 1, electrical level +3.3V_RUN. This pin Enables the Power for the USB-OTG port on the carrier board.

Please notice that for correct management of Overcurrent signals, power distribution switches are needed on the carrier board.

Q7-C26

Q7-C26 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0

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