Cinterion
®
MV31-W Hardware Interface Description
3.2 Characteristics
75
t
MV31-W_HID_v01.009a
2022-04-27
Public / Preliminary
Page 31 of 76
3.2.6
USB Interface
The 5G M.2 Data Card MV31-W has 6 interface lines for USB (see
) and is acting as
peripheral.
USB Design General Guidelines:
•
Reserve choke on all the USB signals in platform for noise debug.
•
Reserve 0.1uF capacitor on USB3.1 TX/Rx paths.
•
Co-layout USB3 choke and 0.1uF capacitor on module side for noise debug
Notes: All the above components should be covered by shielding cover.
Figure 12:
USB Interface
3.2.6.1
USB 2.0 Interface
The 5G M.2 Data Card MV31-W‘s USB interface (USB_D+, USB_D-) as part of the 75-pin ap-
plication connector supports a USB 2.0 High Speed (480Mbit/s) device interface that is Full
Speed (12Mbit/s) compliant. Because there is no separate voltage detection line available on
the application connector, the 5G M.2 Data Card MV31-W reports as a self-powered device
compliant with the
3.2.6.2
USB 3.1 Gen 2 Interface
The USB 3.1 Gen 2 Interface is compliant to
and supports up to 10Gbit/s.
Please note that with the data card’s PCIe hardware variant the USB 3.1 interface pins are
used as PCIe 2
nd
lane pins.
USB_D
‐
USB_D+
USB3.1
‐
TX
‐
USB3.1
‐
TX+
USB3.1
‐
RX
‐
USB3.1
‐
RX+
USB_D
‐
USB_D+
USB3.1
‐
RX
‐
USB3.1
‐
RX+
USB3.1
‐
TX
‐
USB3.1
‐
TX+
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rm
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MV3
1
100nF
100nF
100nF
100nF