Operating Modes - Quectel EG91 Series Hardware Design

USB_BOOT 75
RESERVED Pins
Pin Name Pin No.
1,2, 11~14,
16, 51,
NC 57, 63~66,
76~78,
88, 92~99
RESERVED 18, 25, 56
NOTE
Keep all RESERVED pins and unused pins unconnected.

3.4. Operating Modes

The table below briefly outlines the operating modes to be mentioned in the following chapters.
Table 5: Overview of Operating Modes
Mode Details
Idle
Normal
Operation
Talk/Data
Minimum
AT+CFUN command can set the module to a minimum functionality mode without
Functionality
removing the power supply. In this case, both RF function and (U)SIM card will be invalid.
Mode
EG91_Series_Hardware_Design
processor sleep
state detection
Force the module to
DI enter emergency
download mode
I/O Description
NC
Reserved
Software is active. The module has registered on network, and it is
ready to send and receive data.
Network connection is ongoing. In this mode, the power consumption is
decided by network setting and data transfer rate.
LTE Standard Module Series
EG91 Series Hardware Design
V max=0.6V
IL
V min=1.2V
IH
V max=2.0V
IH
V min=-0.3V
IL
V max=0.6V
IL
V min=1.2V
IH
V max=2.0V
IH
DC Characteristics
If unused, keep it
open.
1.8V power domain.
It is recommended to
reserve the test
points.
Comment
Keep these pins
unconnected.
Keep these pins
unconnected.
Pin 56 is only
reserved on EG91-E.
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