TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R07
Advance Information
System description
Page 42 of 158
1.9.1.2
USB in Windows
The USB drivers (INF files) are provided for Windows systems and should be installed properly by following the
step-by-step instruction in
USB drivers are available for the following operating system platforms:
Windows Vista
Windows 7
Windows 8
Windows 8.1
Windows Embedded Compact 7
The module firmware can be upgraded over the USB interface by means of the FOAT feature, or using the u-blox
EasyFlash tool (for more details see
Firmware Update Application Note
1.9.1.3
USB in Linux/Android
It is not required to install a specific driver for each Linux-based or Android-based operating system (OS) to use
the module USB interface, which is compatible with standard Linux/Android USB kernel drivers.
The full capability and configuration of the module USB interface can be reported by running “lsusb –v” or an
equivalent command available in the host operating system when the module is connected.
1.9.1.4
USB and power saving
The modules automatically enter the USB suspended state when the device has observed no bus traffic for a
specific time period according to the
USB 2.0 specification
[6]. In suspended state, the module maintains any
USB internal status as device. In addition, the module enters the suspended state when the hub port it is
attached to is disabled. This is referred to as USB selective suspend.
If the USB is suspended and a power saving configuration is enabled by the AT+UPSV command, the module
automatically enters the low power idle-mode whenever possible but it wakes up to active-mode according to
any required activity related to the network (e.g. the periodic paging reception described in section 1.5.1.5) or
any other required activity related to the functions / interfaces of the module.
The USB exits suspend mode when there is bus activity. If the USB is connected and not suspended, the module
is forced to stay in active-mode, therefore the AT+UPSV settings are overruled but they have effect on the power
saving configuration of the other interfaces.
The modules are capable of USB remote wake-up signaling: i.e. it may request the host to exit suspend mode or
selective suspend by using electrical signaling to indicate remote wake-up, for example due to incoming call,
URCs, data reception on a socket. The remote wake-up signaling notifies the host that it should resume from its
suspended mode, if necessary, and service the external event. Remote wake-up is accomplished using electrical
signaling described in the
USB 2.0 specifications
For the module current consumption description with power saving enabled and USB suspended, or with power
saving disabled and USB not suspended, see the sections 1.5.1.5, 1.5.1.6 and the
TOBY-L2 Data Sheet
[1] or the
MPCI-L2 Data Sheet
