EG91 miniPCIe UserManual

12
miniPCIe EG91 V1.0 Copyright © 5GHUB.US
39
VCC_3V3
I
3.0V~3.6V, typically
3.3V DC supply
40
GND
41
VCC_3V3
I
3.0V~3.6V, typically
3.3V DC supply
42
LED_WWAN#
OC
LED signal for indicating
the network status of
the module
43
GND
44
NC
(U)SIM card insertion
detection
45
PCM_CLK
IO
PCM clock signal
46
RESERVED
47
PCM_DOUT
O
PCM data output
48
NC
49
PCM_DIN
I
PCM data input
50
GND
51
PCM_SYNC
IO
PCM frame
synchronization
52
VCC_3V3
PI
3.0V~3.6V, typically
3.3V DC supply
2.13 Operating Models
The following table briefly outlines the operating modes to be mentioned in the following
chapters.
Mode
Detail
Normal Operation
Idle
Software is active. The module has registered on the
network, and it is ready to send and receive data
Talk/Data
Network connection is ongoing. In this mode, the
power consumption is decided by network setting and
data transfer rate.
Minimum Functionality Mode
AT+CFUN command can set the module to a minimum functionality
mode without removing the power supply. In this case, both RF
function and (U)SIM card will be invalid.
Airplane Mode
AT+CFUN command or W_DISABLE# pin can set the module to
airplane mode. In this case, RF function will be invalid.
Sleep Mode
In this mode, the current consumption of the module will be
reduced to the minimal level. In this mode, the module can still
receive paging message, SMS, voice call and TCP/UDP data from
the network normally
Power Down Mode
In this mode, the power management unit shuts down the power
supply. Software goes inactive. The serial interface is not
accessible. Operating voltage remains applied