CN210225404U

CN210225404U - 4G wireless transmission module based on MT67xx

Info

Publication number: CN210225404U
Application number: CN201920869570.2U
Authority: CN
Inventors: Dacai Du; 杜大才
Original assignee: Shanghai Yuanhua Communication Technology Co Ltd
Current assignee: Shanghai Yuanhua Communication Technology Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-03-31
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a 4G wireless transmission module based on MT67xx, including MT67xx main control chip and with the equal signal connection's of MT67xx main control chip WIFI transmission module, bluetooth transmission module, FM module, ADC module, NFC module, GPS module. The utility model discloses can regard as the baseband module of pronunciation and data telephone, can be used to smart mobile phone/support equipment and application program/camera phone/multimedia telephony/GPS of global positioning service many other terminals of music, support peripheral equipment such as voice service, data service. Abundant network protocol is embedded in this module, integrates a plurality of industry standard interfaces to support multiple functions, very big expansion its range of application in the M2M field, like CPE, router, data card, panel computer, on-vehicle, security protection etc..

Description

4G wireless transmission module based on MT67xx

Technical Field

The utility model belongs to the field of communication, concretely relates to 4G wireless transmission module based on MT67 xx.

Background

At present, with the development and large-scale application of the internet of things technology, the original 2G and 3G communication modules cannot bear larger data flow transmission in some applications, and with the coverage and application of a 4G communication network, the 4G wireless transmission modules are widely used, and are widely used in wireless network wireless terminals or data collectors.

Because the application of the internet of things has the characteristics of diversity and uncertainty, the application is the same type of application, but due to different scenes, the workflow and the working mode of the product are possibly completely different, and even in the same application and the same scene, the product difference can be caused by the difference of the requirements. And because various sensors and various data processing modes are different, a high-speed data processing and transmitting module suitable for various external interfaces and various data processing and data transmission is needed, and the high-speed data processing and transmitting module is suitable for various monitoring applications. Therefore, a more universal 4G wireless transmission module is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a 4G wireless transmission module based on MT67xx with universality.

The utility model discloses 4G wireless transmission module based on MT67xx, including MT67xx main control chip and with WIFI transmission module, bluetooth transmission module, FM module, ADC module, NFC module, the GPS module of MT67xx main control chip equal signal connection;

the MT67xx main control chip is provided with an MSDC pin connected with an external memory card;

the MT67xx main control chip is provided with a flash lamp connected with the GPIO pin;

the MT67xx main control chip is provided with an indicator light connected with an ISIN pin;

the MT67xx main control chip is provided with an R/C pin connected with a key;

the MT67xx main control chip is provided with an I2S pin connected with the MIC;

the MT67xx main control chip is provided with an I2S pin connected with an earphone;

the MT67xx main control chip is provided with a SIM pin connected with an SIM;

the MT67xx main control chip is provided with a GPIO pin connected with a motor;

the MT67xx main control chip is provided with a CSI pin connected with the main/auxiliary camera;

the MT67xx main control chip is provided with a DSI pin connected with the LCD;

the MT67xx main control chip is provided with an I2C pin connected with the CTP;

the MT67xx main control chip is provided with an I2C pin connected with the light sensation/distance sensor;

the MT67xx main control chip is provided with an I2C pin connected with a G-sensor;

the MT67xx main control chip is provided with a USB interface pin connected with an OTG;

the MT67xx main control chip is provided with a USB interface pin connected with a network port;

the MT67xx main control chip is provided with an I2C pin connected with a gyroscope.

Further, the NFC module uses an MT6605 chip.

Compared with the prior art, the utility model has the following characteristics and beneficial effect:

the utility model discloses can regard as the baseband module of pronunciation and data telephone, can be used to smart mobile phone/support equipment and application program/camera phone/multimedia telephony/GPS of global positioning service many other terminals of music, support peripheral equipment such as voice service, data service. Abundant network protocol is embedded in this module, integrates a plurality of industry standard interfaces to support multiple functions, very big expansion its range of application in the M2M field, like CPE, router, data card, panel computer, on-vehicle, security protection etc..

The utility model discloses the wireless transmission module adopts the 4G network to carry out data transmission, and picture and video information can in time be handled to high-speed core processor, and remote video monitoring product can be done to external high definition digtal camera, is applied to security protection class products such as anti-theft monitoring, old man prevent falling the warning.

Drawings

Fig. 1 is a schematic pin diagram of an outer ring of a 4G wireless transmission module according to this embodiment;

fig. 2 is a schematic diagram of an interface pin of the 4G wireless transmission module of the present invention;

fig. 3 is a schematic diagram of a pin connection relationship of the 4G wireless transmission module of the present invention;

FIG. 4 is a schematic diagram of pin connection of an external memory card;

fig. 5 is a schematic diagram of pin connection of the external network port.

Detailed Description

In order to more clearly illustrate the technical solutions of the present invention and/or the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The utility model comprises a MT67xx main control chip, a WIFI transmission module, a Bluetooth transmission module, an FM module, an ADC module, an NFC module and a GPS module which are in signal connection with the MT67xx main control chip; the WIFI transmission module is used for carrying out data transmission based on a WIFI protocol; the Bluetooth transmission module is used for carrying out data transmission based on a Bluetooth protocol; the FM module is used for realizing the radio function; the ADC module is used for detecting working voltage and working current; the NFC module is used for realizing radio frequency identification; the GPS module is used for realizing positioning.

Specifically, the MT67xx host chip includes 8 64-bit ARM Cortex-A53 processor cores, and a Mali-T720 image processor supporting OpenGL ES 3.0 and Open CL 1.2 APIs. The main control chip supports the whole network communication frequency band, has rich external standard interfaces and can be adapted to various sensors, displays, touch screens and other devices. The dual-band signal of the WIFI transmission module supports 2.4G and 5GHz, supports 802.11a/b/h/n MAC/BB/RF protocol, supports the WIFI hotspot function, can be used as a WIFI terminal or a server, and can be used for searching WIFI by a user by using a standard JAVA interface, connecting the WIFI and transmitting data. The Bluetooth transmission module is based on a Bluetooth 4.0 protocol, is upward compatible with Bluetooth 2.1 and Bluetooth 3.0, is compatible with a BLE protocol, and can realize Bluetooth data transmission by using a standard Bluetooth JAVA interface. The frequency range of the FM module is 65-108MHz, and a user can set the frequency and turn on or off the FM function by calling the standard JAVA interface. The ADC module is used for detecting working voltage and working current. The NFC module adopts an MT6605 chip and supports the NFC function of an I2C interface. The GPS module is internally integrated with a GPS and an AGPS, supports Beidou positioning and supports various auxiliary positioning modes, such as EPO, HotStill, E911 and SUPL, and a user can use a standard JAVA interface to acquire positioning information such as longitude and latitude, speed, direction angle and the like.

Referring to fig. 1, a Pin diagram of an outer ring of the 4G wireless transmission module of this embodiment is shown, wherein a total of 140 pins are designed, from Pin1 to Pin 100. Referring to fig. 2, a schematic diagram of an interface pin of the 4G wireless transmission module of this embodiment is shown, in which 24 pins are designed, and mainly reserved for an NFC function, a voice interface, a battery pin, and a charging detection pin. The connection relationship of the 4G wireless transmission module is shown in figure 3, an external memory card is connected with the 4G wireless transmission module through an MSDC pin, a flash lamp is connected with the 4G wireless transmission module through a GPIO pin, an indicator lamp is connected with the 4G wireless transmission module through an ISIN pin, a key is communicated with the 4G wireless transmission module through an R/C pin, MIC is connected with the 4G wireless transmission module through an I2S pin, an earphone is connected with the 4G wireless transmission module through an I2S pin, SIM is connected with the 4G wireless transmission module through an SIM pin, a motor is connected with the 4G wireless transmission module through a GPIO pin, a main camera and a secondary camera are connected with the 4G wireless transmission module through a CSI pin, LCD is connected with the 4G wireless transmission module through a DSI pin, CTP is connected with the 4G wireless transmission module through an I2C pin, and a light sense/distance sensor, g-sensor passes through I2C pin connection 4G wireless transmission module, and OTG passes through USB interface pin connection 4G wireless transmission module, and the net gape passes through USB interface pin connection 4G wireless transmission module, and the gyroscope passes through I2C pin connection 4G wireless transmission module.

The 4G wireless transmission module of the embodiment has the following characteristics:

(1) the internal storage adopts 8GB EMMC and 1G DDR3 Flash, and Pin2Pin is compatible with 16+1, 16+2 and 32+2 Flash models, and different Flash models can be selected according to application requirements. The external storage supports a Micro SD interface, and the external card socket can support a 128G storage card to the maximum extent. The external memory card performs data interaction through 6 pins in total, namely MSDC1_ CMD (Pin38), MSDC1_ CLK (Pin42), MSDC1_ DAT0(Pin43), MSDC1_ DAT1(Pin40), MSDC1_ DAT2(Pin41) and MSDC1_ DAT3(Pin39), wherein the MSDC1_ CMD provides control signals for storing reading and writing, the MSDC1_ CLK provides clock signals for storing reading and writing, and the MSDC1_ DAT0 to MSDC1_ 3 are data lines for storing reading and writing, and the data lines output or input data waveforms with high and low changes according to the data to be stored, so that the data operation is completed. The external memory card interface pins, definitions and interface voltage requirements are shown in table 1.

TABLE 1 external memory card interface pins, definitions and interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin42	MSDC1_CLK	DIO	MSDC1 clock output	2.8/1.8V
Pin38	MSDC1_CMD	DIO	MSDC1 commandpin	2.8/1.8V
					Pin43	MSDC1_DAT0	DIO	MSDC1 data0 pin	2.8/1.8V
Pin40	MSDC1_DAT1	DIO	MSDC1 data1 pin	2.8/1.8V
					Pin41	MSDC1_DAT2	DIO	MSDC1 data2 pin	2.8/1.8V
Pin39	MSDC1_DAT3	DIO	MSDC1 data3 pin	2.8/1.8V

(2) The external SIM card holder supports dual-card dual-standby and supports two SIM card holders, wherein the SIM1 is configured for full network communication. A set of SIM card interfaces includes a data line SIM _ SIO, a clock line SIM _ SCLK, and a reset signal line SIM _ SRST, in addition to a power supply and a ground line. Table 2 shows the SIM card interface pins and definitions, and hardware interface voltage requirements.

TABLE 2 SIM card interface pins, definitions and interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin34	SIM1_SIO	DIO	SIM1 data，PMIC interface	1.8V
Pin37	SIM1_SRST	DIO	SIM1 reset，PMIC interface	1.8V
					Pin33	SIM1_SCLK	DIO	SIM1 clock，PMIC interface	1.8V
Pin31	SIM2_SIO	DIO	SIM2 data，PMIC interface	1.8V
					Pin30	SIM2_SRST	DIO	SIM2 reset，PMIC interface	1.8V
Pin32	SIM2_SCLK	DIO	SIM2 clock，PMIC interface	1.8V

(3) The 24-bit color display screen can support 1920-1080 resolution MIPI DSI interface at the highest and is used for displaying images, videos and the like. The LCM is connected with the main control MCU through three pins of DISP _ PWM (Pin69), DSI _ TE (Pin45) and LCM _ RST (Pin47), wherein the LCM _ RST provides a reset signal of the LCM, the DSI _ TE Pin plays a role in data synchronization to ensure that image display is complete, the DISP _ PWM Pin mainly realizes interface display, and different frequencies and duty ratios are configured to refresh images onto an interface. Table 3 shows LCM interface pins and definitions, and hardware interface voltage requirements.

TABLE 3 LCM interface pins, definitions and hardware interface Voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin69	DISP_PWM	DIO	Display PWM output	1.8V
Pin45	DSI_TE	DIO	Parallel display interface tearing effect	1.8V
					Pin47	LCM_RST	DIO	Parallel display interface reset signal	1.8V

(4) The utility model discloses support the touch-sensitive screen, can realize the multiple touch. The touch screen adopts an I2C interface, 4 paths of I2C are supported, and a user can select one path of I2C to be used as the touch screen interface. I2C includes an SCL signal line and an SDA data line, both standard I2C interface lines. Table 4 shows the I2C interface pins and definitions of the touch screen touch IC, and the hardware interface voltage requirements.

TABLE 4I 2C interface pins, definitions and hardware interface Voltage requirements

(5) The utility model discloses the highest 1300W automatic focusing camera that supports adopts MIPI CSI interface, and high-speed camera of four-channel can handle high definition image, has very high recognition rate. The interface pins and definitions for the MIPI CSI for the primary camera, and hardware interface voltage requirements are seen in table 5.

TABLE 5 interface pins, definitions and hardware interface Voltage requirements for MIPI CSI for the main camera

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin110	RCN	AIO	CSI0 CK Lane N	1.8V
Pin109	RCP	AIO	CSI0 CK Lane P	1.8V
					Pin114	RDN0	AIO	CSI0 Lane0 N	1.8V
Pin113	RDP0	AIO	CSI0 Lane0 P	1.8V
					Pin111	RDN1	AIO	CSI0 Lane1 N	1.8V
Pin112	RDP1	AIO	CSI0 Lane1 P	1.8V
					Pin108	RDN2	AIO	CSI0 Lane2 N	1.8V
Pin107	RDP2	AIO	CSI0 Lane2 P	1.8V
					Pin106	RDN3	AIO	CSI0 Lane3 N	1.8V
Pin105	RDP3	AIO	CSI0 Lane3 P	1.8V

(6) The utility model discloses the highest 500W automatic focusing cameras that support of vice camera adopts MIPI CSI interface equally, adopts the two pass camera. The interface pins and definitions for the MIPI CSI for the secondary camera, and the hardware interface voltage requirements are seen in table 6.

TABLE 6 interface pins, definitions and hardware interface Voltage requirements for MIPI CSI for a secondary camera

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin101	RCN_A	AIO	CSI0 CK Lane N	1.8V
Pin102	RCP_A	AIO	CSI0 CK Lane P	1.8V
					Pin104	RDN0_A	AIO	CSI0 Lane0 N	1.8V
Pin103	RDP0_A	AIO	CSI0 Lane0 P	1.8V
					Pin100	RDN1_A	AIO	CSI0 Lane1 N	1.8V
Pin99	RDP1_A	AIO	CSI0 Lane1 P	1.8V

(7) The utility model discloses support 4 way I2C external interfaces, can support various sensors and the external equipment of I2C interface type. The I2C interface pins and definitions, and hardware interface voltage requirements are shown in Table 7.

TABLE 7I 2C interface pins, definitions and hardware interface Voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin89	SCL0	DIO	I2C0 clock	1.8V
Pin90	SDA0	DIO	I2C0 data	1.8V
					Pin87	SCL1	DIO	I2C1 clock	1.8V
Pin88	SDA1	DIO	I2C1 data	1.8V
					Pin86	SCL2	DIO	I2C2 clock	1.8V
Pin85	SDA2	DIO	I2C2 data	1.8V
					Pin84	SCL3	DIO	I2C3 clock	1.8V
Pin83	SDA3	DIO	I2C3 data	1.8V

(8) The utility model discloses support flash light all the way, adopt GPIO43 as enabling control pin, pull high this GPIO and can make the flash light work. The flash lamp control can be controlled by a standard Java calling port at the upper layer of the system application. Table 8 is the interface pins and definitions for the camera flash, and hardware interface voltage requirements.

TABLE 8 interface pins and definitions for Camera flash, and hardware interface Voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin92	FLASH_EN	DIO	Flash enable GPIO	1.8V

(9) The utility model discloses the button is realized adopting ROW and COL matrix mode, supports 4 physical buttons at present, contains KEY KAY _ CAMERA of shooing, volume up KEY KAY _ VOLUMEUP, volume down KEY KEY _ VOLUMEDOWN and return KEY KEY _ HOME, and extension keyboard is supported to this scheme simultaneously, can realize 72 button functions according to the application. The interface pins and definitions for the keys, and hardware interface voltage requirements are seen in table 9.

TABLE 9 interface pins and definitions for keys, and hardware interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin59	KPROW0	AIO	Keypad row 0	1.8V
Pin52	KPROW1	AIO	Keypad row 1	1.8V
					Pin50	KPROW2	AIO	Keypad row	2	1.8V
Pin53	KPCOL0	AIO	Keypad column 0	1.8V
					Pin54	KPCOL1	AIO	Keypad column 1	1.8V
Pin60	KPCOL2	AIO	Keypad column	2						1.8V

(10) The utility model discloses support two MIC configurations, two way MICs can supply the customer to select, provide high definition speech input. According to the scheme, the microphone equipment can select an I2S interface or an SPI interface type, an I2S interface is defaulted, and the interface is located on an expansion plug-in interface at the upper left corner of the module. The interface pins and definitions for the MIC, and hardware interface voltage requirements are seen in table 10.

TABLE 10 interface pins and definitions for MIC, and hardware interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Ex_Pin16	I2S_DATA_IN	DIO	I2S data input pin	1.8V
Ex_Pin18	I2S_BCK	DIO	I2S clock	1.8V
					Ex_Pin17	I2S_LRCK	DIO	I2S word select	1.8V

In addition, the interface used for MIC is PCM/I2S merge interface hybrid interface, namely four interfaces using PCM function are used as data input interfaces of MIC. The interface is also located on the extended plug interface at the upper left corner of the module. This interface differs from the I2S interface above IN that the I2S interface has only one DATA line, I2S _ DATA _ IN, while PCM/I2S has two DATA lines, one being PCM _ TX for DATA transmission, PCM _ RX for DATA reception, and the other two being clock lines, PCM _ SYNC for signal synchronization. Table 11 shows the PCM/I2S merge interface pin and definition for MIC, and hardware interface voltage requirements.

TABLE 11 interface pins and definitions for MIC, and hardware interface Voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage ofTo find
					Ex_Pin4	PCM_TX	DIO	PCM audio interface	1.8V
Ex_Pin2	PCM_CLK	DIO	PCM audio interface	1.8V
					Ex_Pin5	PCM_RX	DIO	PCM audio interface	1.8V
Ex_Pin3	PCM_SYNC	DIO	PCM audio interface	1.8V

(11) The utility model discloses support motor all the way, adopt the vibrations of a GPIO mouth control motor, the GPIO mouth is pulled high, and the motor begins to shake, and the GPIO mouth pulls low the motor and stops vibrations. Table 12 is the GPIO interface pins and definitions for the motor, and hardware interface voltage requirements.

TABLE 12 GPIO interface pins and definitions for motors, and hardware interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin121	VIB_DRV_P	DIO	Vibrator Driver	1.8V

(12) The utility model discloses support double-colored pilot lamp, adopt the pilot lamp effect of system from the area, can realize the breathing lamp effect. The utility model discloses the pilot lamp connects inside ISINK pin, and two tunnel altogether are ISINK0 and ISINK1, draw low and the load current who disposes the pin according to the drawing high of pin, realize the bright of pilot lamp and go out and luminance selection to and control two duty cycles that go out and reach the breathing lamp effect that the flash slowly flashed. Table 13 is the GPIO interface pins and definitions for the motor, and hardware interface voltage requirements. In addition, the external GPIO port of the utility model can be used as the LED control pin.

TABLE 13 GPIO interface pins and definitions for motors, and hardware interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin126	ISINK0	DIO	LED Control	1.8V
Pin127	ISINK1	DIO	LED Control	1.8V

(13) The utility model discloses support 3.5 standard earphone interface, with speaker alternative work. Speakers does not work if the earphones are inserted, and Speakers does not work when the earphone function does not work. The scheme provides Speakers and earphones of the I2S or SPI interface type, and two SPI paths are available for use. Table 14 is the I2S interface pins and definitions for headphones & Speakers, and hardware interface voltage requirements, and Table 15 is the PCM/I2S merge interface pins and definitions for headphones & Speakers, and hardware interface voltage requirements. The utility model discloses there is SPI all the way to supply the peripheral hardware to use, earphone & Speakers can use it as the interface and use. Table 16 is the SPI interface pins and definitions for headset & Speakers, and hardware interface voltage requirements.

Table 14I 2S interface pins and definitions for headset & Speakers, and hardware interface voltage requirements

TABLE 15 PCM/I2S merge interface pins and definitions for headphones & Speakers

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Ex_Pin4	PCM_TX	DIO	PCM audio interface	1.8V
Ex_Pin2	PCM_CLK	DIO	PCM audio interface	1.8V
					Ex_Pin5	PCM_RX	DIO	PCM audio interface	1.8V
Ex_Pin3	PCM_SYNC	DIO	PCM audio interface	1.8V

Table 16 SPI interface pins and definitions for headset & Speakers, and hardware interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin81	SPI_CS	DIO	SPI chip select	1.8V
Pin74	SPI_MI	DIO	SPI data in	1.8V
					Pin75	SPI_MO	DIO	SPI data out	1.8V
Pin71	SPI_CK	DIO	SPI clock	1.8V

(14) The utility model discloses support USB interface of the same kind, mainly be VCC, GND and USB _ DM, USB _ DP. The USB can realize the function of charging and data transmission, and also can realize the function of OTG. The interface pins and definitions of the USB, and the hardware interface voltage requirements in this embodiment are shown in table 17.

TABLE 17 USB interface pins and definitions, and hardware interface Voltage requirements

(15) The utility model discloses support acceleration sensor G-sensor, support the acceleration sensor of I2C interface type, acquiesce and support BMA250 and MC3410, KXTIK1004, MPU60x0 four kinds of types's sensor. The I2C interface pins and definitions for the acceleration sensor, and the hardware interface voltage requirements are seen in table 18.

TABLE 18I 2C interface pins and definitions for acceleration sensor, and hardware interface voltage requirements

(16) The utility model discloses support distance light sense sensor, support the distance light sense sensor of I2C interface type, acquiesce and support APDS9930 and CM36283, EPL2590, the light sense sensor of four kinds of STK3x1 x. The I2C interface pins and definitions for distance/light sensing, and hardware interface voltage requirements are shown in Table 19.

TABLE 19I 2C interface pins and definitions for distance/light sensing, and hardware interface voltage requirements

(17) The utility model discloses support the gyroscope sensor, support the gyroscope sensor device of I2C interface, the I2C interface sensor of the four kinds of models of default support l3g4200d, bmg160, lsm6ds3gy, mpu6050 gy. The I2C interface pins and definitions for the gyro sensor, and hardware interface voltage requirements are seen in table 20.

TABLE 20I 2C interface pins and definitions for gyroscope sensors, and hardware interface voltage requirements

(18) The utility model discloses support the OTG function, mainly use the USB interface to realize. The utility model discloses support USB interface of the same kind. The interface pins and definitions for the USB for OTG functions, and the hardware interface voltage requirements are seen in table 21.

TABLE 21 USB interface pins and definitions for OTG functions, and hardware interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin26	USB_DM	AIO	USB port D-differential data line	1.8V
Pin25	USB_DP	AIO	USB port D+differential data line	1.8V

(19) The utility model discloses support 1 way SPI interface, can provide the peripheral equipment that uses SPI communication mode and use. The SPI is divided into 4 interfaces, SPI _ CS is a chip selection signal line, SPI _ CK is a clock signal line, SPI _ MI is a data input line, and SPI _ MO is a data output line. The SPI interface pins and definitions for the peripheral device, and hardware interface voltage requirements are seen in table 22.

TABLE 22 SPI interface pins and definitions for peripheral devices, and hardware interface voltage requirements

(20) The utility model discloses support 4 groups of UART interfaces, can be used to functions such as system debugging, serial ports equipment data transmission, the user calls standard JAVA and sets up information such as baud rate, check bit of interface configuration serial ports. The UART interface pins and definitions for peripheral communication, and hardware interface voltage requirements are shown in table 23.

TABLE 23 UART interface pins and definitions for peripheral communication, and hardware interface voltage requirements

Pin number	Pin name	Pin type	Interface pin description	Voltage requirement
					Pin61	URXD0	DIO	UART0 RX	1.8V
Pin62	UTXD0	DIO	UART0 TX	1.8V
					Pin63	URXD1	DIO	UART1 RX	1.8V
Pin64	UTXD1	DIO	UART1 TX	1.8V
					Pin72	URXD2	DIO	UART2 RX	1.8V
Pin68	UTXD2	DIO	UART2 TX	1.8V
					Pin78	URXD3	DIO	UART3 RX	1.8V
Pin70	UTXD3	DIO	UART3 TX	1.8V

(21) The utility model discloses support external net gape configuration, support the external net gape RTL8152B of USB interface type, can realize 4G data transfer ethernet data function, see specifically figure 5. The utility model discloses a USB _ DP and USB _ DM link to each other with RTL8152BUSB2.0 commentaries on classics 10/100M network chip, and cooperation network driver realizes hundred megabroadband data transmission.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. 4G wireless transmission module based on MT67xx, characterized by:

the system comprises an MT67xx main control chip, a WIFI transmission module, a Bluetooth transmission module, an FM module, an ADC module, an NFC module and a GPS module, wherein the WIFI transmission module, the Bluetooth transmission module, the FM module, the ADC module, the NFC module and the GPS module are in signal connection with the MT67xx main control chip;

the MT67xx main control chip is provided with an R/C pin connected with a key;

the MT67xx main control chip is provided with a SIM pin connected with an SIM;

the MT67xx main control chip is provided with a DSI pin connected with the LCD;

2. The MT67 xx-based 4G wireless transmission module of claim 1, wherein:

the NFC module adopts an MT6605 chip.