Page 23
3.4.2
USB Interface
The M18QWG module supports USB 2.0 high-speed protocol,
it’s USB I/O lines complying
with the USB 2.0 electrical specification.
Table 6
– WNC USB Interface Connections
The USB electrical interface includes ESD protection and is accessible via either:
the MicroUSB connector, or
the 60-pin Expansion connector
The USB interface on the
WNC module’s Qualcomm MDM9207 series quad-core processor
implements a
“USB Compound Device” (Qualcomm-patented) with virtual USB hub enabling
multiple logical devices to enumerate over single physical USB interface.
W
hen the LTE System board is first connected to the developer’s computer, it enumerates as
this USB peripheral device, implementing a total of 9 logical interfaces as shown in the
Windows screenshot on the
next page…
WNC
Pin #
WNC Module
Pin Name
WNC I/O
Direction
Avnet SOM
Signal Name
Description
86
USB_DP
DI/DO
USB_D+
USB 2.0 Data Positive
87
USB Detect
DI
GPIO87
USB Detect
88
USB_DN
DI/DO
USB_D-
USB 2.0 Data Negative
Summary of Contents for AES-ATT-M18QWG-SK-G
Page 12: ...Page 12 2 2 LTE IoT System Board Block Diagram Figure 2 LTE IoT System Board Block Diagram ...
Page 15: ...Page 15 Figure 6 Use Cases for Avnet LTE IoT Boards ...
Page 20: ...Page 20 Figure 10 Expansion Connector Pin Numbering ...
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