Usb Application With Usb Remote Wakeup Function - Quectel EG06 Series Manual


Driving the host DTR to low level will wake up the module.

When EG06 has a URC to report, RI signal will wake up the host. Please refer to Chapter 3.16 for
details about RI behavior.

3.5.1.2. USB Application with USB Remote Wakeup Function

If the host supports USB suspend/resume and remote wakeup function, the following three preconditions
must be met to let the module enter into the sleep mode.

Execute AT+QSCLK=1 command to enable the sleep mode.

Ensure the DTR is held at high level or keep it open.
 The host's USB bus, which is connected with the module's USB interface, enters into suspended
state.
The following figure shows the connection between the module and the host.
Figure 5: Sleep Mode Application with USB Remote Wakeup

Sending data to EG06 through USB will wake up the module.

When EG06 has a URC to report, the module will send remote wake-up signals to USB bus so as to
wake up the host.
EG06_Hardware_Design
Module
RXD
TXD
RI
DTR
GND
Figure 4: Sleep Mode Application via UART
Module
USB_VBUS
USB_DP
USB_DM
GND
LTE-A Module Series
EG06 Hardware Design
Host
TXD
RXD
EINT
GPIO
GND
Host
VDD
USB_DP
USB_DM
GND
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