Low Power Consumption; Airplane Mode; Sleep Mode; Usb Application (Nonsupport Usb Suspend, Support Vbus) - Fibocom NL668-LA Series Hardware Manual

6 Low Power Consumption

6.1 Airplane Mode

W_DISABLE# Pin Description:
Table 6-1 W_DISABLE# pin description
Pin name I/O
W_DISABLE# I
NL668-LA series module supports two ways to enter airplane mode:
Table 6-2 Module enter airplane mode ways
Hardware I/O interface button
1
control
2 AT command control

6.2 Sleep Mode

6.2.1 USB Application (Nonsupport USB Suspend, Support VBUS)

If the host nonsupport USB suspend function, the module can enter sleep mode by disconnect
USB_VBUS from the external control circuit:
Sleep:
Send AT+GTUSBDETECTEN=1 to enable USB plug detect function.
AT+GTLPMMODE=1,X command to set the WAKEUP_IN pin's level of control module enter sleep mode.
Reset module, command effective.
(X=0, WAKEUP_IN pin is high level, module enter sleep mode;
X=1, WAKEUP_IN pin is low level, module enter sleep mode)
AT+CSCLK=1 command to enable sleep function.
AT+GTUSBSLEEPEN=1,0 command to set USB sleep mode.
Draw out the USB cable or disable the USB HUB controller, module enter sleep mode.
Wake up:
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FIBOCOM NL668-LA Series Hardware Guide
Pin No. Description
4 Module airplane mode control
First send "AT+WDISABLEEN=1" to enable W_DISABLE#
pin function. Pull high or float W_DISABLE# pin (pull high by
default), module enter normal mode, pull it down, module
enter airplane mode.
AT+CFUN=4--module enter airplane mode
AT+CFUN=1--module enter normal mode
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