Ebyte E70-915NW30S User manual

E70-915NW30S User Manual
915MHz 1W Star Network SMD Wireless Module

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Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd 1
CONTENT
1. OVERVIEW.......................................................................................................................................................... 3
1.1 INTRODUCTION...................................................................................................................................................3
2. FEATURES............................................................................................................................................................... 3
3. TECHNICAL PARAMETERS................................................................................................................................4
3.1 GENERAL PARAMETERS.................................................................................................................................................4
3.2 ELECTRICAL PARAMETERS............................................................................................................................................ 4
3.1.1 Transmit current.................................................................................................................................................... 4
3.1.2 Receiving current................................................................................................................................................... 5
3.1.3 Sleep current.......................................................................................................................................................... 5
3.1.4 Supply voltage....................................................................................................................................................... 5
3.1.5 Communication level............................................................................................................................................. 6
3.2 RF PARAMETERS........................................................................................................................................................... 6
3.2.1 Transmit power...................................................................................................................................................... 6
3.2.2 Receiving sensitivity.............................................................................................................................................. 7
3.3 COVERAGE.....................................................................................................................................................................7
4 SIZE AND PIN DEFINITION................................................................................................................................. 8
5 FIRMWARE TRANSMITTING MODE............................................................................................................. 10
5.1 TRANSPARENT TRANSMISSION.................................................................................................................................... 10
5.2 SHORT ADDRESS TRANSMISSION................................................................................................................................. 10
5.3 LONG ADDRESS TRANSMISSION...................................................................................................................................11
6.DEVICE STATUS....................................................................................................................................................11
6.1 AUX DESCRIPTION......................................................................................................................................................11
6.2 LINK DESCRIPTION.....................................................................................................................................................12
6.3 ACK DESCRIPTION...................................................................................................................................................... 13
7.OPERATING MODE............................................................................................................................................. 13
DORMANT NODE............................................................................................................................................................... 13
7.1.COORDINATOR MODE.................................................................................................................................................. 13
7.2.NORMAL NODE............................................................................................................................................................14
7.3.DORMANT NODE......................................................................................................................................................... 14
7.4 CONFIGURATION MODE...............................................................................................................................................14
7.5 MODE SWITCHING....................................................................................................................................................... 14
8.QUICK START....................................................................................................................................................... 15
8.1 COMMUNICATION BETWEEN NORMAL NODE AND COORDINATOR............................................................................... 15
9. AT COMMAND......................................................................................................................................................18
10. NOTES...................................................................................................................................................................24
11 FAQ.........................................................................................................................................................................24
11.1 COMMUNICATION RANGE IS TOO SHORT................................................................................................................... 24
11.2 MODULE IS EASY TO DAMAGE...................................................................................................................................25
11.3 BER(BIT ERROR RATE)IS HIGH................................................................................................................................25
12.PRODUCTION GUIDANCE...............................................................................................................................25
12.1. REFLOW SOLDERING TEMPERATURE........................................................................................................................25
12.2 REFLOW SOLDERING CURVE.................................................................................................................................. 26
13. PACKAGE FOR BATCH ORDER....................................................................................................................27

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REVISION HISTORY............................................................................................................................................... 27
ABOUT US..................................................................................................................................................................27

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1. Overview
1.1 Introduction
E70-915NW30S is the star network module, operating at 915MHz,
based on originally imported TI CC1310 and 15.4-Stack protocol, with
coordinator and terminal as a whole. There are long range, standard range
and high-speed transmission modes. Maximum 200 nodes can send data to
one coordinator. Use industry-standard AT commands for operating
configuration, which greatly simplifies user operations.
E70-915NW30S is the first 915MHz wireless module that solves a
series of problems caused by traditional modules. Users will spend less
effort to deal with complex network protocols, which greatly reduces the difficulty of customer development and
shortens the user's development period. The protocol guarantees the stability and packet rate of the entire wireless
communication system.
E70-915NW30S strictly follows design standards of FCC, CE, CCC and meets various RF certification
requirements for exporting.
Model No.
Frequency
Transmit power
Reference
distance(PCB/IPX)
Package
Antenna
E70 (915NW30S)
915M
30dBm
6500m
SMD
Stamp hole/IPEX
2. Features
[Ultra-low power consumption]: The average current in sleep mode is less than 4uA.
[Three transmission formats]: In coordinator mode, it supports broadcast transmission, short address transmission, and
long address transmission.
[Multiple Sends and Receives]: Supports up to 200 nodes concurrently transmitting data to ensure the reliability and
timeliness of data transmission.
[AES128 encryption]: Communication uses AES128 data encryption to ensure data packet security and reliability.
[Parameter saving]: After the parameters are set by the user, the module parameters will be saved and will not be lost
when the power is turned off. After the power is turned on again, the module will work according to the set parameters.
[Three transmission modes]: The firmware integrates long-distance mode, standard transmission mode, and high-speed
rate mode, which is suitable for many different applications.

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[Low-power node]: Can be configured as a low-power node (sleeping node) mode. In this mode, the node periodically
wakes up to request data.
[8 kinds of data output modes]: Users can configure multiple data output modes to meet different demand scenarios.
[CSMA / CA]: Supports carrier sense multiple access with collision avoidance (CSMA-CA).
3. Technical Parameters
3.1 General parameters
Model No.
Size
Net weight
working
temperature
Working
humidity
Storage
temperature
E70 (915NW30S)
24 * 38.5 mm
4.9±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
3.2 Electrical parameters
3.1.1 Transmit current
Model No.
Min
Typ
Max
Unit
Remark
E70 (915NW30S)
580
600
mA
● When designing the power supply circuit for the
module, it is often recommended to reserve more
than 30% of the margin, as the whole machine is
conducive to long-term stable work;
● The current required for the instant of launch is
large but often because the transmission time is
extremely short, the total energy consumed may be
smaller;
● When customers use an external antenna, the
degree of impedance matching between the antenna
and the module at different frequency points will
affect the magnitude of the transmit current to
varying degrees.

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3.1.2 Receiving current
Product model
Min
Typ
Max
Unit
Remark
E70 (915NW30S)
12
13
14
mA
The current consumed by the RF chip in the
pure receiving state is called the receiving
current. Some RF chips with communication
protocols or developers have loaded some
self-developed protocols on the whole
machine, which may cause the receiving
current of the test to be too large；
The current in the purely receiving state is
often mA level, and the "receiving current" of
the μA level needs to be processed by the
developer through software;
3.1.3 Sleep current
Product model
Min
Typ
Max
Unit
Remark
E70 (915NW30S)
1.0
2.0
3.5
µA
● Sleep current usually refers to the current consumed by
the CPU, RAM, clock and some registers reserved, and
the SoC is in a very low power consumption state;
● Sleep current is often much smaller than the current
consumed by the power supply part of the machine at no
load, so it is not necessary to be too demanding.
3.1.4 Supply voltage
Product model
Min
Typ
Max
Unit
Remark
E70 (915NW30S)
3.3
5.0
5.2
V DC
● The power supply voltage is at the maximum value for
a long time, and there is a risk of burning the module;
● The power supply pin has a certain anti-surge
capability, but it must not be processed without the
existence of pulses higher than the maximum supply
voltage;

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● The power supply voltage is not recommended to be
lower than the recommended value. When the power
supply voltage is lower than the recommended value, the
RF parameters will be affected to varying degrees.
3.1.5 Communication level
Product model
Min
Typ
Max
Unit
Remark
E70 (915NW30S)
2.5
3.3
3.6
V DC
● The communication level is higher than the maximum
value of the module communication level, there is a high
risk of burning the module;
● Although there are many ways to change the
communication level, it will greatly affect the power
consumption of the whole machine.
3.2 RF parameters
3.2.1 Transmit power
Product model
Min
Typ
Max
Unit
Remark
E70 (915NW30S)
29
30
30
dBm
● Since the material itself has a certain error, a single
LRC component has an error of ±0.1%. However, since
a plurality of LRC components are used in the entire RF
loop, there is a case where error accumulation occurs,
resulting in a difference in transmission current of
different modules;
● Reducing the transmit power can reduce power
consumption to some extent, but reducing the transmit
power emissions for a number of reasons reduces the
efficiency of the internal PA;
● Transmit power will decrease as the supply voltage
decreases

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3.2.2 Receiving sensitivity
Product model
Min
Typ
Max
Unit
Remark
E70 (915NW30S)
-115
-116
-117
dBm
● The current sensitivity is tested at an air rate of
2.5kbps.
● Since the material itself has a certain error, a single
LRC component has an error of ±0.1%. However, since a
plurality of LRC components are used in the entire RF
loop, there is a case where error accumulation occurs,
resulting in a difference in receiving sensitivity of
different modules;
● After increasing the airspeed of the module, the
receiving sensitivity will decrease, resulting in a
decrease in communication distance.
3.3 Coverage
Product model
Min
Typ
Max
Unit
Remark
E70 (915NW30S)
4000
4400
6000
m
● Clear and open, antenna gain is 5dBi, antenna height
is 2.5 meters, and air rate is 2.5kbps;
● Each packet data interval is 2s, 100 packets of data are
sent, each packet of data is 30 bytes, and the packet loss
rate is less than 5% is effective communication distance;
● In order to obtain meaningful and reproducible test
results, we choose to conduct tests in sunny and clear
suburbs where almost has no electromagnetic
interference;
● There are obstacles and electromagnetic interference,
and the distance will decrease to varying degrees.

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4 Size and pin definition
No.
Pin item
Pin direction
Application
1
GND
Ground
Ground electrode
2
GND
Ground
Ground electrode
3
GND
Ground
Ground electrode
4
NC
Reserved pin
Reserved, to be floated
5
NC
Reserved pin
Reserved, to be floated
6
NC
Reserved pin
Reserved, to be floated
7
NC
Reserved pin
Reserved, to be floated
8
NC
Reserved pin
Reserved, to be floated
9
NC
Reserved pin
Reserved, to be floated
10
NC
Reserved pin
Reserved, to be floated
11
NC
Reserved pin
Reserved, to be floated
12
NC
Reserved pin
Reserved, to be floated
13
NC
Reserved pin
Reserved, to be floated
14
NC
Reserved pin
Reserved, to be floated
15
NC
Reserved pin
Reserved, to be floated
16
LINK
output
For indicating the current network connection status of the module, it can be
configured as drain open circuit output or push-pull output. For details, please refer
to the parameter setting, a 1K protection resistor shall be connected in series
externally (it can be suspended).

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17
GND
Ground
Ground electrode
18
NC
Reserved pin
Reserved, to be floated
19
NC
Reserved pin
Reserved, to be floated
20
NC
Reserved pin
Reserved, to be floated
21
NC
Reserved pin
Reserved, to be floated
22
TCKC
Input
JTAG TCKC
23
TMSC
Input
JTAG TMSC
24
RESET
Input
Module reset pin, low level effective
25
NC
Reserved pin
Reserved, to be floated
26
M0
Input
M1M0 The four working modes of the module are determined by the joint
combination. When in use, a 1K protection resistor shall be connected in series
externally, and a 1M pull-up resistor shall be added (it shall not be suspended,
otherwise, it can be grounded).
27
M1
Input
M1M0 The four working modes of the module are determined by the joint
combination. When in use, a 1K protection resistor shall be connected in series
externally, and a 1M pull-up resistor shall be added (it shall not be suspended,
otherwise, it can be grounded).
28
VCC
Power supply：2.6V ~ 5.5V DC
29
VCC
Power supply ：2.6V ~ 5.5V DC
30
GND
Ground
Ground electrode
31
GND
Ground
Ground electrode
32
ACK
Output
The user indicates the data transmission result of the module, which is pulled down
before transmission and pulled up after success. It can be configured as drain open
circuit output or push-pull output. When it is used, a 1K protection resistor should be
connected externally in series (it can be suspended).
33
NC
Reserved pin
Reserved, to be floated
34
NC
Reserved pin
Reserved, to be floated
35
NC
Reserved pin
Reserved, to be floated
36
RXD
Input
TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can be
configured as open-drain or pull-up input.
37
TXD
Output
TTL UART outputs, connects to external RXD (MCU, PC) input pin. Can be
configured as open-drain or push-pull output
38
AUX
Output
To indicate module ’ s working status & wakes up the external MCU. During the
procedure of self-check initialization, the pin outputs low level. Can be configured as
push-pull output (suspending is allowed).
39
NC
Reserved pin
Reserved, to be floated
40
NC
Reserved pin
Reserved, to be floated
41
NC
Reserved pin
Reserved, to be floated
42
PA_EN
Output
Internal single chip microcomputer control PA pin, high level effective, connected 45
pin
43
LNA_EN
Output
Internal single chip microcomputer control LNA pin, high level effective, connected
44 pin

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44
LNA_EN
Input
Internal single chip microcomputer control LNA pin, high level effective, connected
43 pin
45
PA_EN
Input
Internal single chip microcomputer control PA pin, high level effective, connected 42
pin
46
GND
Ground
Ground electrode
47
GND
Ground
Ground electrode
48
ANT
Antenna 50 ohm impedance
★E70 (915NWxxS) series can achieve pin compatibility, Pin to Pin replacement.
★Single chip control PA, LNA truth table is as follows:
PA_EN
LNA_EN
Transmitting
1
0
Receiving
0
1
Sleeping
0
0
5 Firmware Transmitting mode
5.1 Transparent transmission
Format
Values
When the coordinator is set to transparent transmission, the coordinator will send broadcast message. At this time, all non-dormant nodes in the entire
network will receive data.
5.2 Short address transmission
Format
Values
Coordinator short address transmission format: short address + valid data 00 00 or FF FF are broadcast address
Coordinator
HEX
Sending：00 01 AA BB CC
Node A address 00 01
HEX
Receiving：AA BB CC
Node B address 00 02
HEX
Null
Node C address 00 03
HEX
Null
Coordinator
HEX
FF FF AA BB CC
Node A address 00 01
HEX
AA BB CC
Node B address 00 02
HEX
AA BB CC
Node C address 00 03
HEX
AA BB CC

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5.3 Long address transmission
Format
Values
Coordinator short address transmission format: short address + valid data
00 00 00 00 00 00 00 00 00 or FF FF FF FF FF FF FF FF are broadcast address;
Coordinator
HEX
Sending：0A 01 AA 45 65 13 12 44 AA BB CC
Node A address:
0A 01 AA 45 65 13 12 44
HEX
Receiving：AA BB CC
Node B address：
0D 55 18 42 1A 27 29 64
HEX
Null
Node C address:
A4 78 02 46 B5 1C 5A 02
HEX
Null
Coordinator
HEX
FF FF FF FF FF FF FF FF AA BB CC
Node A address:
0A 01 AA 45 65 13 12 44
HEX
AA BB CC
Node B address:
0A 01 AA 45 65 13 12 44
HEX
AA BB CC
Node C address:
0A 01 AA 45 65 13 12 44
1 HEX
AA BB CC
6.Device status
No
Description（STM8L MCU）
1
The UART module is TTL level.
2
For some MCU works at 5V DC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.
6.1 AUX description
It can indicate whether there are data that are yet to send via wireless way, or whether all wireless data has been sent
through UART, or whether the module is still in the process of self-check initialization.
No.
Description

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1
【Indication of UART output】can be used to wake up external MCU.
2
【Indication of wireless transmitting】
1.The length of the buffer is 512 bytes, and the single packet must not exceed 128 bytes,
when Aux=1, users can transmit data continuously within 128 bytes.
2.When AUX = 1, it means that all the UART data of the module have been transmitted already.
Timing Sequence Diagram of AUX when RXD pin receives
6.2 LINK description
The LINK pin indicates the current network status, after the node is connected to the network, the current pin is
pulled low. The external device can query the device network status through the pin level. In the coordinator mode,
the pin indicates if the module establishes the network normally.

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6.3 ACK description
The ACK pin is used to indicate the status of the last user’s data transmission. Before transmitting, the pin is pulled
low. After the transmission is successful, the pin is pulled high. The user can use this pin state to judge if the data
has arrived successfully. This pin function cannot indicate the coordinator to send broadcast message.
Note: In 802.15.4 protocol, the device will use the CSMA/MA technology to access the channel before sending data.
When the receiving device receives the data, the returned ACK does not have this mechanism. This means that even
if the receiving device can receive data in extreme conditions, sending device ACK pin indicates that the last data
transmission failed.
7.Operating mode
7.1.Coordinator mode
If the user configures the operating mode 4,（M0=0,M1=0）or the user configures the operating mode as 0, the module
works in the coordinator mode. In the coordinator mode, the coordinator can set up the network, coordinator is the central
node of the network, there must be a coordinator in the network.
The coordinator configurable data input mode is:
Broadcast transmission. When configured to broadcast, all non-dormant devices on the entire network will receive data.
The ACK pin indicates transmission successfully all the time.
Short address transmission, when configured to short address transmission, the user must specify the short address before
sending data.
Long address transmission. When configured to long address transmission, the user must specify the long address before
sending data.
M1
M0
Description
Remarks
Coordinator mode
0
0
Set up a network to manage network node
information
Transfer data according to input and output modes
Normal node
0
1
Send and receive data at any time
High real-time performance
Dormant node
1
0
Low-power reception, sending data at any
time
Receive delay, send need to wake up the serial port
Sleep mode
1
1
Cannot send and receive data, system
sleeps
The fixed baud rate is 115200 8N1

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7.2.Normal node
If the user configures the operating mode 4, （M0=0,M1=1）or the user configures the operating mode as 1, the
module works in the normal node mode. In the normal node mode, the data can be received and sent in real time. It is
suitable for application with low power consumption but high real-time requirement.
7.3.Dormant node
If the user configures the operating mode as 4, M0=1,M1=0, or the user configures the operating mode as 2, the
module works in the dormant node mode, the device request if there is data transmitted by coordinator according to the
user-configured sleep period , The non-broadcast data sent by the coordinator will be temporarily stored inside the
coordinator. The device is in low power consumption during the sleep period. If the sleep node wants to send data
actively, the user should send no more than two bytes to wake up the device. After the byte data is used to wake up the
device and the wake-up byte is sent, the user needs to wait for more than 100ms to send the real data. After the wake-up
byte is sent, the user needs to wait for 100ms to send the real data and the wake-up data will be discarded. After the
device was waken up, the module will open the serial port, receiving AT command, if more than 2 seconds, there is no
data input, the module will close serial port and go to sleep.The sleep node is suitable for applications where the user
requires high power consumption but does not require high real-time data. The input transmission format of the
coordinator cannot be broadcast mode when sending data to the sleeping node , instead, the AT + TFICFG = Value
command should be used to configure its input mode to short address or long address mode. Then Communicate with the
sleeping node according to the usage of this AT command.
7.4 Configuration mode
When M0=1,M1=1,the device will switch to configuration mode. In the this mode, the serial port parameters are:
115200, 8N1, and the average operating current is 2uA. In this mode, the module cannot send and receive data. When the
external AT instruction is configured, needs the serial port to send no more than two bytes data to wake up the
device .After the wake-up byte is sent, the user needs to wait for 100ms to send the real data and the wake-up data will be
discarded. After the device was waken up, the module will open the serial port, receiving AT command, if more than 2
seconds, there is no data input, the module will close serial port and go to sleep. The next AT command requires the user
to resend the wake-up byte.
7.5 Mode switching
No
Remarks
1
The user can decide the operating mode by the combination of M1 and M0
2
In any work mode, the user can configure the operating mode through the AT command
3
When M0=1,M1=1, the serial port parameters are 115200, 8N1(fixed)

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8.Quick start
8.1 Communication between normal node and coordinator
Coordinator configuration
Open the serial port assistant, select the serial port corresponding to the device, and set the serial port parameters
(default is 115200, 8N1)
Enter "+++" without line breaks to enter the AT command mode. When receiving "Enter AT Mode", the AT mode is
successfully entered. As shown in Figure 5-1:
Enter "AT+HELP" with line breaks to see all instructions. As shown in Figure 1:
Figure 1
Then enter "AT+WMCFG=0" with line breaks to configure the device as the coordinator mode, as shown in Figure
2:
Figure 2
Then enter “AT+RSTART” to restart the device with a line break. The coordinator configuration is complete. As

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shown in Figure 3:
Figure 3
Normal node configuration
Open the serial port assistant and select the serial port corresponding to the device. Set the baud rate to 115200, the
data bit to 8 bits, the parity bit to none, the stop bit to 1 bit, and the flow control is disabled, open the serial port.
Enter "+++" without line breaks to enter the AT command mode. When receiving “Enter AT Mode", the AT mode is
successfully entered.
Enter "AT+HELP" with line breaks to see all instructions. As shown in Figure 4:
Figure 4
Then enter "AT+WMCFG=1" with line breaks to configure the device as the coordinator mode, as shown in Figure
5:
Figure 5
Then enter “AT+RSTART” to restart the device with a line break. The coordinator configuration is complete.
As shown in Figure 5-6:

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Figure 6
Network transmission data transmission
When the configuration is complete, the coordinator restarts and the DIO11 pin is asserted low, indicating that the
coordinator has started and is running. After an normal node device starts up, it will have a network access time of 10
to 20 seconds. When the network access is completed, the DIO11 pin will be set to low level, indicating that the
network access is successful.
After waiting for the device to access the network successfully, the coordinator enters to AT mode, enters the
command "AT+DINFO=ALLNODE" with a newline character, the coordinator will return the short address and long
address of all the nodes that have already entered the network and recorded. As shown in Figure 5-7:
Figure 7
At this time, use “AT+EXIT” to exit the AT command mode with a newline character, and reclaim “Exit AT Mode”
to exit AT mode. Next can transfer data, as shown in Figure 8:
Figure 8
The coordinator and node devices can communicate with each other normally.

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9. AT Command
When the serial port enters AT mode, it needs to open the serial port assistant, set the serial port (default parameter) baud
rate 115200, data bit 8 bit, stop bit 1 bit, open the serial port, input "+++" without carriage return. All parameter settings
will reply "\r\n+OK\r\n".
1
Enters” +++” into AT Command
+++
Parameter Description:
Nonparametric
Response:
Enter AT Mode
Example：+++
Note: 1. The AT command can be used only after entering the AT command mode
2. After entering the AT command mode, the AT command mode can be used again only after exiting the AT command mode, reset or
restart the module
3. When writing this instruction, the serial debugging assistant must be set not to send new lines; writing other AT commands must be set
to send new lines.
2
AT+EXIT Exit AT command mode
AT+EXIT
Parameter Description:
Null
Response:
Exit AT Mode
Example：AT+EXIT
Note: AT commands are invalid after exiting AT command mode
3
AT + CNCFG Set / Query device channel
AT+CNCFG=?
Parameter specification:
Query the current working channel
Response：
Channel：0
AT+CNCFG=Value
Parameter specification:
Value：0~63 （Factory default parameter is 0）
Note: 1. In the long-distance mode and standard transmission mode, the frequency range is (908.2MHz ~ 920.8MHz), the channel
interval is 0.2MHz, and Fre = 908.2 + (Channel * 0.2);
In high-rate mode, the frequency range is 902.4MHz ~ 927.6MHz, the channel interval is 0.4MHz, and Fre = 902.4 +
(Channel * 0.4);
2. After setting the channel, the network information will be cleared
4
AT+ WMCFG Setting /Querying working mode (reboot valid)
AT+ WMCFG =?
Description:
Gets working mode
Response：
WMCFG：4

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AT+ WMCFG =Value
Description:
Value：0~4
0，Coordinator；
1, Normal node;
2, Dormant Node；
3, Sleep mode；
4, (factory default), dial switch control
Example：AT+ WMCFG =4
Note: 1. After setting a new mode, it needs to be reset or power off and restart
5
AT+DINFO Get facility information
AT+DINFO=ALLNODE
Description:
Query the short and long address of all node, and return by UART.
It works only when the device works in the coordinator mode
AT+DINFO=SELFS
Description:
Get short address and return by UART
AT+DINFO=SELFE
Description:
Get long address and return by UART
Example：AT+DINFO=SELFE
6
AT+ TFOCFG Setting/Querying output format configuration (can be saved without reboot)
AT+ TFOCFG=？
Description:
Gets output format configuration
Response：
TFOCFG:0
AT+ TFOCFG=Value
Description:
Value：0~7
0：Output: valid data (transparent transmission)）
1: Output: Valid Data +Long Address
2：Output: Valid Data +Short Address
3：Output: Valid Data+RSSI
4：Output：Valid Data+Long Address+Short Address
5：Output：Valid Data+Long Address+RSSI
6：Output：Valid Data+Short Address+RSSI
7：Output：Valid Data+Long Address+Short Address+RSSI
Example：AT+ TFCFG=0
7
AT+ TFICFG Setting/Querying input transmission format configuration (can be saved without reboot)
AT+ TFICFG=？
Description: