CN208094609U - A kind of mobile terminal and its Ethernet control circuit - Google Patents
A kind of mobile terminal and its Ethernet control circuit Download PDFInfo
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- CN208094609U CN208094609U CN201820295671.9U CN201820295671U CN208094609U CN 208094609 U CN208094609 U CN 208094609U CN 201820295671 U CN201820295671 U CN 201820295671U CN 208094609 U CN208094609 U CN 208094609U
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Abstract
The utility model discloses a kind of mobile terminal and its Ethernet control circuits.Wherein, the Ethernet control circuit includes Network Serial Port conversion module and RJ45 interfaces, the main control module of the connection of Network Serial Port conversion module the RJ45 interfaces and mobile terminal；Ethernet signal is transferred to Network Serial Port conversion module by the RJ45 interfaces, ethernet signal is converted to rs 232 serial interface signal and is transferred to main control module by the Network Serial Port conversion module, and the rs 232 serial interface signal that main control module exports is converted into ethernet signal and is sent to RJ45 interfaces, cable network can be not only connected to realize, but also can be charged with USB, connect the ends PC or other external equipments (such as mouse, keyboard, USB flash disk).The hardware resource for taking full advantage of mobile terminal in this way increases utility function on the basis of not reducing or weakening other effects of mobile terminal, improves product competitiveness in the market.
Description
Technical field
The utility model is related to field of mobile terminals, more particularly to a kind of mobile terminal and its Ethernet control circuit.
Background technology
The mode of the network of mobile terminal connection at present is broadly divided into wireless and wired two kinds of network accesses, wherein on wireless
Net includes：Built-in wireless WiFi online, built-in wireless 3G/4G online etc., wiring logging-on function includes that built-in or circumscribed USB-network interface turns
It connects device and realizes wiring logging-on function etc..
Wireless mode is although easy to use, but can not just connect internet in the region of no WiFi and 3G/4G signals, and
Signal strength, speed and stability are influenced clearly by distance and spatial obstacle object, and 3G/4G flows rate also compared with
It is high.
Wired mode changes into network interface connection network by the USB pins of mobile terminal CPU, but this mode occupies CPU's
USB pin resources, connection network cannot use USB functions, there is its limitation.
Therefore, the prior art need to be improved.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of existing network interface online work(
Can, while not influencing the mobile terminal of its USB function again and realizing the Ethernet control circuit of the function.
In order to solve the above technical problems, the utility model takes following technical scheme：
The utility model provides a kind of Ethernet control circuit of mobile terminal, including Network Serial Port conversion module and RJ45
Interface, the main control module of the connection of Network Serial Port conversion module the RJ45 interfaces and mobile terminal；The RJ45 interfaces are by ether
Net signal transmission gives Network Serial Port conversion module, the Network Serial Port conversion module that ethernet signal is converted to rs 232 serial interface signal and is passed
It is defeated by main control module, and the rs 232 serial interface signal that main control module exports is converted into ethernet signal and is sent to RJ45 interfaces.
In one embodiment, the Network Serial Port conversion module includes Network Serial Port transparent transmission chip, first resistor, the second electricity
The ends the RXP connection RJ45 of resistance, 3rd resistor, the 4th resistance, the 5th resistance and the 6th resistance, the Network Serial Port transparent transmission chip connects
Mouthful the 3rd foot, connect 3V3 feeder ears also by second resistance, the of the ends the RXN connection RJ45 interfaces of Network Serial Port transparent transmission chip
6 feet connect 3V3 feeder ears also by first resistor, and the ends TXP of the Network Serial Port transparent transmission chip connect the 1st of RJ45 interfaces the
Foot, also by the 4th resistance connect 3V3 feeder ears, Network Serial Port transparent transmission chip the ends TXN connection RJ45 interfaces the 2nd foot,
3V3 feeder ears, the 11st foot of the ends the ACT# connection RJ45 interfaces of Network Serial Port transparent transmission chip, network string are connected by 3rd resistor
10th foot of the ends the LINK# connection RJ45 interfaces of mouth transparent transmission chip, the 9th foot of RJ45 interfaces pass through the 5th resistance and connect 3V3 confessions
Electric end, the 12nd foot of RJ45 interfaces connect 3V3 feeder ears by the 6th resistance, the ends RXD1 of the Network Serial Port transparent transmission chip,
The ends TXD1, the ends RXD2, the ends TXD2 connect main control module.
In one embodiment, the Network Serial Port conversion module further includes crystal oscillator, the first capacitance and the second capacitance, the net
One end of the ends the XI connection crystal oscillator of network serial ports transparent transmission chip also passes through the first capacity earth, the ends XO of Network Serial Port transparent transmission chip
It connects the other end of crystal oscillator, also pass through the second capacity earth.
In one embodiment, the Network Serial Port conversion module further includes third capacitance, the Network Serial Port transparent transmission chip
The ends RST1 pass through third capacity earth.
In one embodiment, the Network Serial Port transparent transmission chip uses the integrated chip of model CH9121.
In one embodiment, the main control module includes the processing chip of model MT8321, the processing chip
The ends UTXD1, the ends URXD1, the ends UTXD2, the ends URXD2 are correspondingly connected with the ends RXD1, the ends TXD1, RXD2 of Network Serial Port transparent transmission chip
End, the ends TXD2.
The utility model also provides a kind of mobile terminal, including USB interface and main control module, further includes in above-described embodiment
Ethernet control circuit described in any one, the main control module connection USB interface and Ethernet control circuit.
In one embodiment, the main control module includes processing chip, the ends the D+ connection processing chip of the USB interface
The ends USB_DP, the ends USB_DM of the ends the D- connection processing chip of USB interface.As an example, the mobile terminal is tablet computer
Or smart mobile phone.
In one embodiment, the mobile terminal further includes WIFI module and wireless module, the WIFI module and wireless
Module is all connected with main control module.
Compared to the prior art, a kind of mobile terminal of the utility model offer and its Ethernet control circuit, wherein described
Ethernet control circuit includes Network Serial Port conversion module and RJ45 interfaces, and the Network Serial Port conversion module connects RJ45 interfaces
With the main control module of mobile terminal；Ethernet signal is transferred to Network Serial Port conversion module, the network by the RJ45 interfaces
Ethernet signal is converted to rs 232 serial interface signal and is transferred to main control module by serial ports conversion module, and the serial ports of main control module output is believed
Number being converted to ethernet signal is sent to RJ45 interfaces, and cable network can be not only connected to realize mobile terminal, but also can be with
With the function of USB chargings, the connection ends PC or other external equipments (such as mouse, keyboard, USB flash disk).Movement is taken full advantage of in this way
The hardware resource of terminal increases utility function on the basis of not reducing or weakening other effects of mobile terminal, improves production
The product market competitiveness.
Description of the drawings
Fig. 1 is the structural schematic block diagram of mobile terminal provided by the utility model.
Fig. 2 is the circuit diagram of Ethernet control circuit provided by the utility model.
Fig. 3 is the circuit diagram of the main control module of mobile terminal provided by the utility model.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, mobile terminal provided in this embodiment includes Ethernet control circuit 10, USB interface 2 and master control mould
Block 3, the Ethernet control circuit 10 include Network Serial Port conversion module 11 and RJ45 interfaces 12.Wherein, the main control module 2
The Network Serial Port conversion module 11 and USB interface 2 are connected, the Network Serial Port conversion module 11 connects RJ45 interfaces 12.
When mobile terminal wired connection, ethernet signal is transferred to by Network Serial Port conversion by the RJ45 interfaces 12
Module 11, then the Network Serial Port conversion module 11 ethernet signal is converted into rs 232 serial interface signal and is transmitted further to main control module 2,
The rs 232 serial interface signal that main control module 2 exports, which is converted to ethernet signal, is sent to RJ45 interfaces 12 simultaneously.
The utility model does not have to the USB pin resources for occupying mobile terminal CPU, but utilizes the other idle pins of CPU
Resource realizes sending and receiving for ethernet signal by a Network Serial Port conversion module 11, and then realizing can both have
Line is surfed the Internet, and uses the USB interface 3 of mobile terminal with can not conflicting.Take full advantage of hardware resource in this way, perfect product
Function improves product competitiveness.
In the following, further describing the knot of the Ethernet control circuit 10 of the mobile terminal of the utility model in conjunction with Fig. 2 and Fig. 3
Structure and operation principle.
In the Ethernet control circuit 10 of the present embodiment, Network Serial Port conversion module 11 includes Network Serial Port transparent transmission chip
U1, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6, the net
The ends RXP of network serial ports transparent transmission chip U1 connect the 3rd foot of RJ45 interfaces 12, also by second resistance R2 connection 3V3 feeder ears, net
The ends RXN of network serial ports transparent transmission chip U1 connect the 6th foot of RJ45 interfaces 12, also by first resistor R1 connection 3V3 feeder ears, institute
State the 1st foot of the ends the TXP connection RJ45 interfaces 12 of Network Serial Port transparent transmission chip U1, also by the 4th resistance R4 connections 3V3 power supplies
End, the 2nd foot of the ends the TXN connection RJ45 interfaces 12 of Network Serial Port transparent transmission chip U1 are powered also by 3rd resistor R3 connections 3V3
End, the 11st foot of the ends the ACT# connection RJ45 interfaces 12 of Network Serial Port transparent transmission chip U1, the LINK# of Network Serial Port transparent transmission chip U1
10th foot of end connection RJ45 interfaces 12, by the 5th resistance R5 connection 3V3 feeder ears, RJ45 connects the 9th foot of RJ45 interfaces 12
12nd foot of mouth 12 passes through the 6th resistance R6 connection 3V3 feeder ears, the ends RXD1 of the Network Serial Port transparent transmission chip U1, TXD1
End, the ends RXD2, the ends TXD2 connect main control module 2.
Specifically, the Network Serial Port conversion module 11 further includes crystal oscillator X1, the first capacitance C1 and the second capacitance C2, it is described
One end of the ends the XI connection crystal oscillator X1 of Network Serial Port transparent transmission chip U1 also passes through the first capacitance C1 ground connection, Network Serial Port transparent transmission core
The other end of the ends the XO connection crystal oscillator X1 of piece U1 also passes through the second capacitance C2 ground connection.
Specifically, the Network Serial Port conversion module 11 further includes third capacitance C3, the Network Serial Port transparent transmission chip U1
The ends RST1 pass through third capacitance C3 ground connection.
Preferably, integrated chips or other similar functions of the Network Serial Port transparent transmission chip U1 using model CH9121
Chip, realize serial data and network data two-way transparent transmission.
Please continue to refer to Fig. 3, the main control module 2 of mobile terminal includes the processing chip of model MT8321 in the present embodiment
The ends UTXD1, the ends URXD1, the ends UTXD2, the ends URXD2 of U2, the processing chip U2 are correspondingly connected with Network Serial Port transparent transmission chip U1
The ends RXD1, the ends TXD1, the ends RXD2, the ends TXD2.Specifically, the ends UTXD1 of the processing chip U2 connect Network Serial Port transparent transmission
The ends RXD1 of chip U1, the ends TXD1 of the ends the URXD1 connection Network Serial Port transparent transmission chip U1 of processing chip U2, processing chip U2's
The ends UTXD2 connect the ends RXD2 of Network Serial Port transparent transmission chip U1, and the ends URXD2 of processing chip U2 are correspondingly connected with Network Serial Port transparent transmission
The ends TXD2 of chip U1.
In the mobile terminal of MT platforms, RXD, TXD are one group of idle pin, and the present embodiment utilizes processing chip U2MT8321
One group of idle pin RXD and TXD, be connected on CH9121 transparent transmission chips, pass through difference RXN, RXP of CH9121 transparent transmission chips
RJ45 network interfaces are connected to difference TXN, TXP, to realize connection cable network, and are not take up other useful resources again
(such as USB port resource).
Based on above-mentioned Ethernet control circuit, it includes Ethernet described in above-described embodiment that the utility model, which also provides a kind of,
The mobile terminal of control circuit 10, further includes USB interface 3 and main control module 2, and the main control module 2 connects 3 He of USB interface
Ethernet control circuit 10.In the present embodiment, the mobile terminal be tablet computer or smart mobile phone, solve tablet computer or
Smart mobile phone can wiring logging-on function, and the problem of USB port resource will not be occupied.
Specifically, the main control module 2 includes：The processing chip U2 of model MT8321, the ends D+ of the USB interface 3
The ends USB_DP of connection processing chip U2, the ends USB_DM of the ends the D- connection processing chip U2 of USB interface 3.
In the present embodiment, above-mentioned mobile terminal further includes WIFI module and wireless module, the WIFI module and wireless
Module is all connected with main control module 2, ensure that mobile terminal can wireless networking and wiring logging-on function, while can also use move
USB interface 3 in dynamic terminal connects external equipment, and the function of realizing product is used in combination.Since WIFI module and wireless module are equal
For the prior art, details are not described herein again.
Compared with prior art, embodiment provided by the utility model utilizes the pin of tablet computer or smart mobile phone CPU
RXD and TXD forms serial ports, and CPU sends network parameter and serial ports parameter, and net by the serial ports to Network Serial Port conversion module
Network serial ports conversion module is connect with tablet CPU high-speed bidirectionals, and by RXN, RXP differential signal of Network Serial Port conversion module and
TXN, TXP differential signal are connected to RJ45 network interfaces, realize that mobile terminal carries RJ45 network interfaces and is not take up the online of USB interface
Function.
Moreover, the utility model does not have to the USB pin resources for occupying mobile terminal CPU, but utilize CPU other idle
Pin resource realizes sending and receiving for ethernet signal by a Network Serial Port conversion module, and then realizing both can be with
Wiring logging-on function, but can not conflict using the charging of mobile terminal USB interface, the connection ends PC or other external equipments (such as mouse,
Keyboard, USB flash disk etc.).Take full advantage of hardware resource in this way, perfect product function, and realize function and be used in combination, improve product
The market competitiveness.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model
Scope of the claims.
Claims (10)
1. a kind of Ethernet control circuit of mobile terminal, which is characterized in that including Network Serial Port conversion module and RJ45 interfaces,
The main control module of the connection of Network Serial Port conversion module the RJ45 interfaces and mobile terminal；The RJ45 interfaces are by ethernet signal
It is transferred to Network Serial Port conversion module, ethernet signal is converted to rs 232 serial interface signal and is transferred to master by the Network Serial Port conversion module
Module is controlled, and the rs 232 serial interface signal that main control module exports is converted into ethernet signal and is sent to RJ45 interfaces.
2. the Ethernet control circuit of mobile terminal according to claim 1, which is characterized in that the Network Serial Port conversion
Module includes Network Serial Port transparent transmission chip, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance and the 6th electricity
Resistance, the 3rd foot of the ends the RXP connection RJ45 interfaces of the Network Serial Port transparent transmission chip are powered also by second resistance connection 3V3
End, the 6th foot of the ends the RXN connection RJ45 interfaces of Network Serial Port transparent transmission chip connect 3V3 feeder ears, institute also by first resistor
It states the 1st foot of the ends the TXP connection RJ45 interfaces of Network Serial Port transparent transmission chip, connect 3V3 feeder ears, network also by the 4th resistance
2nd foot of the ends the TXN connection RJ45 interfaces of serial ports transparent transmission chip connects 3V3 feeder ears also by 3rd resistor, and Network Serial Port is saturating
Pass the 11st foot of the ends the ACT# connection RJ45 interfaces of chip, the of the ends the LINK# connection RJ45 interfaces of Network Serial Port transparent transmission chip
9th foot of 10 feet, RJ45 interfaces connects 3V3 feeder ears by the 5th resistance, and the 12nd foot of RJ45 interfaces is connected by the 6th resistance
3V3 feeder ears are connect, the ends RXD1, the ends TXD1, the ends RXD2, the ends TXD2 of the Network Serial Port transparent transmission chip connect main control module.
3. the Ethernet control circuit of mobile terminal according to claim 2, which is characterized in that the Network Serial Port conversion
Module further includes crystal oscillator, the first capacitance and the second capacitance, and one end of the ends the XI connection crystal oscillator of the Network Serial Port transparent transmission chip is gone back
By the first capacity earth, the other end of the ends the XO connection crystal oscillator of Network Serial Port transparent transmission chip also passes through the second capacity earth.
4. the Ethernet control circuit of mobile terminal according to claim 2, which is characterized in that the Network Serial Port conversion
Module further includes third capacitance, and the ends RST1 of the Network Serial Port transparent transmission chip pass through third capacity earth.
5. the Ethernet control circuit of mobile terminal according to claim 2, which is characterized in that the Network Serial Port transparent transmission
Chip uses the integrated chip of model CH9121.
6. the Ethernet control circuit of mobile terminal according to claim 2, which is characterized in that the main control module includes
The processing chip of model MT8321, the ends UTXD1, the ends URXD1, the ends UTXD2, the ends URXD2 of the processing chip are correspondingly connected with
The ends RXD1, the ends TXD1, the ends RXD2, the ends TXD2 of Network Serial Port transparent transmission chip.
7. a kind of mobile terminal, including USB interface and main control module, which is characterized in that further include as claim 1-6 is any one
Ethernet control circuit described in, the main control module connection USB interface and Ethernet control circuit.
8. mobile terminal according to claim 7, which is characterized in that the main control module includes processing chip, the USB
The ends USB_DP of the ends the D+ connection processing chip of interface, the ends USB_DM of the ends the D- connection processing chip of USB interface.
9. mobile terminal according to claim 8, which is characterized in that the mobile terminal is tablet computer or intelligent hand
Machine.
10. mobile terminal according to claim 8, which is characterized in that further include WIFI module and wireless module, it is described
WIFI module and wireless module are all connected with main control module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820295671.9U CN208094609U (en) | 2018-03-03 | 2018-03-03 | A kind of mobile terminal and its Ethernet control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820295671.9U CN208094609U (en) | 2018-03-03 | 2018-03-03 | A kind of mobile terminal and its Ethernet control circuit |
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| CN208094609U true CN208094609U (en) | 2018-11-13 |
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| CN201820295671.9U Active CN208094609U (en) | 2018-03-03 | 2018-03-03 | A kind of mobile terminal and its Ethernet control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730134A (en) * | 2019-09-25 | 2020-01-24 | 恒大智慧科技有限公司 | Router and network connection system |
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2018
- 2018-03-03 CN CN201820295671.9U patent/CN208094609U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730134A (en) * | 2019-09-25 | 2020-01-24 | 恒大智慧科技有限公司 | Router and network connection system |
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Effective date of registration: 20210304 Address after: 503 (5C), building D3, TCL Science Park, 1001 Zhongshan Garden Road, Shuguang community, Xili street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Jiangyuan Technology (Group) Co.,Ltd. Address before: 518000 floor 1, 2 and 3, building 3, Heyi community and Yigong City, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ROCO ELECTRONIC Co.,Ltd. |