KR100692919B1 - Interface Device of Multi Service Mobile Phone - Google Patents

Abstract

In a mobile phone providing a multi-service including a plurality of air interface modules having different communication protocols and modulation schemes and a microprocessor processing unit for controlling overall operations for data communication and voice calls, a microprocessor processing unit and a plurality of radios The interface modules are connected in a parallel interface structure sharing one data bus / address bus / control bus, and the hold signals are used to give the wireless interface module practical rights to access and use the data bus / address bus / control bus. Outputs a signal of whether it was received.

Therefore, it provides efficiency in utilization of the I / O pins of the limited microprocessor processor and reduces the load of the microprocessor processor by transmitting and receiving data between the air interface modules by applying a protocol for sharing the interface bus.

Mobile Phone, Ring Structure Protocol, Parallel Interface, Wireless Interface Module

Description

Interface device of multi service mobile phone {Interface Device of Multi Service Mobile Phone}

1 is a block diagram showing the configuration of a general mobile phone.

2 is a block diagram illustrating a plurality of wireless RF interface connections in a conventional multi-service mobile phone.

3 is a block diagram showing the connection of a plurality of wireless RF interfaces in a multi-service mobile phone according to the first embodiment of the present invention.

4 (a) and 4 (b) are detailed block diagrams of each modem processing unit shown in FIG.

5 is a state machine for accessing multiple radio RF interfaces in a multi-service mobile phone according to the present invention.

FIG. 6 is a state machine of a flag generation unit in the modem processing unit shown in FIG.

7 is a block diagram illustrating the connection of a plurality of wireless RF interfaces in a multi-service mobile phone according to a second embodiment of the present invention.

8A and 8B are detailed block diagrams illustrating a second embodiment of each modem processing unit of FIG. 4.

The present invention relates to a mobile phone, and more particularly, a plurality of RF interface modules and a microprocessor processor are connected in a parallel interface structure, and a data bus / address bus / control bus is connected by applying a ring structure protocol. The present invention relates to an interface device of a multi-service mobile phone that can be shared and used.

BACKGROUND OF THE INVENTION According to the development of information and communication technology and services, a representative case among various wireless terminals having mobile communication is a mobile phone.

The cellular phone applies a cellular operation, and is classified into a GSM (Global System for Mobile communication) network and a Code Division Multiple Access (CDMA) network according to a communication method.

The GSM network is a variation of the Time Division Multiple Access (TDMA) scheme, which is widely used in Europe and other regions, digitizes data, compresses it, and then transmits it through one channel together with two different user data. Each data has its own time zone.

CDMA networks digitize data and spread it across the available bandwidth, allowing multiple calls to be sent over a single channel.

Accordingly, the cellular phone is equipped with a modem processing apparatus for processing the corresponding data and signals according to the local network operation method used.

That is, the cellular phone used in the GSM network is equipped with a GSM modem interface to process voice and data, and transmission and reception thereof. The cellular phone used in the CDMA network is equipped with a CDMA modem interface to process voice and data. Allows for the transmission and reception of this data.

1 is a schematic configuration diagram of a general mobile phone, and includes a wireless RF unit 10, a modem processor 20, a microprocessor processor 30, an audio codec 40, and a memory 50 as shown in FIG. It is composed.

The wireless RF unit 10 is responsible for the transmission and reception of a wireless RF signal with a base station (not shown) through an antenna ANT. If the strength of the received wireless RF signal is weak, the wireless RF unit 10 amplifies the signal to a set level and modulates the baseband. Is applied to the modem processing unit 20.

In addition, the wireless RF unit 10 modulates a signal for transmission applied as a signal of the baseband from the modem processing unit 20 to an RF signal, amplifies the signal to a set level, and then shows the antenna through the antenna ANT. To a base station that is not yet established.

The modem processing unit 20 modulates a baseband signal to transmit a voice or data signal to a communication network, and is responsible for restoring a received voice or data signal.

The modem processor 20 controls the interface by a data bus (Data) / address bus (Address) / control bus (Control) that is independently connected to the microprocessor processor 30 in the case of data transmitted and received to perform input and output do.

That is, the microprocessor processor 30 controls data access between the microprocessor processor 30 and the modem processor 20 through a data bus and an address bus according to data access control through a control bus. Sending and receiving access is made.

Recently, as multimedia services are actively performed in mobile phones, the microprocessor processor 30 performs various GUI functions together with multimedia processing functions such as compression / restore of input video, audio, voice, and graphic data.

In addition, the modem processor 20 modulates a user's voice applied through the microprocessor processor 30 in the audio codec 40 into a baseband signal and transmits the signal through the wireless RF unit 10, and wireless RF. The audio signal received through the unit 10 is restored, converted into an analog signal through the audio codec 40, and transmitted to the user through a speaker.

The microprocessor processor 30 processes the general operation of the operation of the mobile phone through the set operation algorithm, and processes the corresponding function with respect to the access signal of the data stored in the memory 50 and the user's request signal input from the keypad. In addition, the processing result of the operation is displayed on the display window (LCD) for the user to check.

The audio codec 40 converts a user's voice or audio signal that is analog input through a microphone into a digital signal, and converts a received voice or audio signal in a digital state for output to a speaker into an analog signal.

The memory 50 can utilize various memory storage media such as a semiconductor memory device, a hard disk, and a DVD, and stores voices and various data transmitted to and received from programs necessary for operating a mobile phone.

As described above, the cellular phone is equipped with a signal of a communication method to be applied, and a modem processor for transmitting and receiving a radio RF signal and a radio RF unit are mounted in independent configurations.

However, such a mobile phone is limited to only one communication method to be used in this case, and thus has a disadvantage that it cannot be used when other communication methods or communication methods are provided.

Mobile phone-based wireless Internet (CDMA 1x, EV-DO, W-CDMA) service is excellent in terms of coverage and mobility, but it is not suitable for high service rates, slow transmission rates, below-expected quality levels, and inconvenient user interfaces. There is a disadvantage in that it does not provide high speed Internet service.

Therefore, the portable Internet (Wibro, hereinafter referred to as 'Wibro'), which can provide stable high-speed Internet service even while moving at low rates, is emerging as a next-generation communication service.

In addition, Wifi (WiFi), which is standardized in IEEE802.11 by the American Institute of Electronics Engineers (IEEE), guarantees compatibility even with different manufacturers. Is able to provide stable internet access services, and is emerging as the next generation communication service.

As such, Wibro, WiFi, GSM, CDMA communication, etc., which are the next generation communication service, apply different wireless protocols and modulation methods. In order to use two or more communication methods with one mobile phone, The modem processing unit and the wireless RF unit, which are RF interface modules capable of processing signals, should be separately installed.

As shown in FIG. 2, in the above-described configuration of FIG. 1, a plurality of modem processing units for modulating voice or data transmitted in each communication scheme to baseband and demodulating received voice or data modulated in baseband 20A-20N and a plurality of modem processing units 20A-20N are connected to each other, and a plurality of wireless RF units 10A-10N are provided to transmit and receive wireless RF signals.

At this time, since each modem processing unit 20A-20N and the microprocessor processing unit 30 are independently connected to each other via a data bus / address bus / control bus, the microprocessor processing unit 30 ) Must be provided with a plurality of ports (Port) for the connection of the modem processing unit applied to each communication method, there is a lot of difficulty in implementing the array and package of the microprocessor processing unit.

In addition, since the port is limited in the case of the microprocessor processor, there is a disadvantage in that the connection to the modem processor is limited.

The present invention has been invented to solve the problem of the method of implementing a plurality of RF stages in the conventional multi-service mobile phone as described above, each RF interface module in connecting a plurality of RF interface module and the microprocessor processor. It is an object of the present invention to connect the microprocessor processor's interface pins in a parallel interface structure.

Another object of the present invention is to allow each RF interface module to share a data bus / address bus / control bus by applying a ring structure protocol.

Another object of the present invention is to perform input / output of necessary data with the RF interface module that wants to use the interface using a ring structure protocol to control the data bus / address bus / control buses connected to the microprocessor processor. To make it possible.

According to an aspect of the present invention, there is provided a mobile phone including a plurality of air interface modules having different communication protocols and modulation schemes, and a microprocessor processor for controlling general operations of data communication and voice calls. The microprocessor processor and the plurality of air interface modules provide an interface device for a multi-service mobile phone connected in a parallel interface structure sharing one data bus / address bus / control bus provided in the microprocessor processor.

In the plurality of air interface modules, a pull-up resistor connected to a power source at one end is connected to a hold signal to indicate whether the user has authority to use and access a bus, and information about the same is connected to the corresponding bus. The present invention provides an interface device of a multi-service mobile telephone which is interconnected so that a microprocessor processor and a modem processor can be recognized.

According to the present invention, the plurality of air interface modules output the hold signal to an active low when the data bus / address bus / control bus is connected to a microprocessor processor and a parallel interface structure and has an access right. And an interface device of a multi-service mobile phone that outputs a floating value with high impedance when there is no access right.

The plurality of air interface modules and the microprocessor processor provide an interface device of a multi-service mobile phone interconnected by a ring structure protocol so as to transmit and receive the use of the data bus / address bus / control bus and the authority access request signal.

In another aspect, the present invention provides a mobile phone including a plurality of air interface modules having different communication protocols and modulation schemes, and a microprocessor processor for controlling general operations of data communication and voice calls.

The microprocessor processor and the plurality of air interface modules are connected in a parallel interface structure sharing one data bus / address bus / control bus provided in the microprocessor processor.

After receiving and analyzing a hold signal indicating whether the user has authority to use and access a bus output from the plurality of air interface modules, and output a substantial hold control signal to allow the corresponding interface module to have a bus use and access right. It provides an interface device of a multi-service mobile phone including a hold control unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

(First embodiment)

3 is a schematic diagram showing a connection between a microprocessor processor and a plurality of RF interface modules in a multi-service mobile phone according to a first embodiment according to the present invention.

As shown, a plurality of modem processing units 200A-200N are configured to enable communication of Wibro, WiFi, GSM, and CDMA methods having different wireless protocols and modulation schemes, and the plurality of modem processing units 200A. -200N) is an independent unique ID is set in parallel with a control bus (ControlN) for performing one data bus (DataN) / address bus (AddressN) / data access control provided in the microprocessor processing unit 100 Connected.

In addition, the modem processing unit 200A-200N indicates that the pull-up resistor R10 having one end connected to the power supply Vcc is connected to the hold signal to indicate whether the modem processing unit 200A-200N has the authority to access the bus. The microprocessor processor 100 is connected to each other so that the information about the microprocessor processor 100 can recognize the information.

That is, if any modem processing unit 200A-200N obtains the access right of the data bus DataN0 / address bus / AddressN / ControlN connected to the microprocessor processing unit 100 and has the corresponding authority. Active Low enables the microprocessor processing unit 100 and modem processing units 200A-200N connected to the bus to recognize them, and floats with high impedance if they do not have access rights. It outputs the floated value so that the microprocessor processor 100 can recognize it.

Further, the microprocessor processing unit 100 → modem processing unit 1 (200A) → modem processing unit 2 (200B) →. → the modem processor N 200N is connected to the bus access authority request O_Req, I_Req, which is composed of the microprocessor processor 100, sequentially and serially as shown in FIGS. 5 and 6 as ring protocols. do.

That is, any modem processing unit 200A-200N or microprocessor processing unit 100 receives the I_Req signal, which is the bus request signal transmitted from the previous stage, and whether the preceding block requires the use of the bus. It is implemented in a structure that can transfer bus access authority so that multiple blocks connected to it can be accessed sequentially by grasping whether it requires use.

This means that once a block has gained access to the bus and has access to the bus, the next block passes the right to access the bus to blocks that require bus access in the order of the ring structure, so that all the blocks share the bus evenly. Can be used.

The process of acquiring and transferring the bus authority includes a flag indicating a state in which the authority to access the current bus is obtained, the bus access request signal Req of the internal block, the bus request signal I_Req, and any arbitrary block are currently accessed by the bus. The signal is generated by a sequential combination of signal hold signals indicating authority, and a detailed process thereof will be described later in the present invention.

Further, a reset signal (Reset) for initializing bus access authority is connected to the microprocessor processor 100 and each modem processor 200A-200N, and the microprocessor processor 100 and any modem processor have bus access authority. Allows you to initialize bus access privileges while present.

That is, when an abnormal bus access authority is granted or occupies the bus unnecessarily for a long time, or when the bus is occupied due to an error or the like, the authority of the bus access of the modem processor or the microprocessor processor 100 may be initialized. To help.

In the present invention having the above-described configuration, the interface operation between the microprocessor processor and the interface module will be described.

For example, the modem processor 1 200A processes the Wibro communication method, the modem processor 2 200B processes the WiFi communication method, and the modem processor N-1 200N processes the CDMA communication method. Assume

For example, in the case of Wibro communication, in order to receive data using the Internet communication from the modem processing unit 1 (200A), the modem processing unit 1 (200A) must receive the shared bus control authority and transmit the data to the microprocessor processing unit (100).

In this way, the modem processing unit 1 (200A) outputs a request signal (O_Req1) for obtaining the bus use and access rights.

At this time, the bus usage and access authority request signal O_Req1 output from the modem processing unit 1 (200A) requests the use of a bus to the modem processing unit 2 (200B), which is a block connected to the next stage, to the modem processing unit 2 (200B). "Or REQUEST" signal not required.

As described above, the request signal O_Req1 for obtaining the bus use and access authority output from the modem processor 1 200A is recognized as the bus use and access request signal I_Req2 by the modem processor 2 200B.

Modem processing unit 2 (200B) not only does not access the bus, but all other modem processing units do not access the bus according to the signal of the bus use and access right request (I_Req2) applied from modem processing unit 1 (200A). When not using "O_Req1 → I_Req2 → modem processing unit 2 (200B) → O_Req2 → I_Req3 → modem processing unit 3 → O_Req3 →… → O_ReqN-1 → I_ReqN → microprocessor processing unit (100) → O_ReqN → I_Req1 → modem processing unit 1 ( 200A) ", and if a modem processing unit other than the modem processing unit 1 (200A) does not make a bus request, the signal of I_Req1 is transferred as a" NOT REQUEST "signal, and the modem processing unit 1 (200A) When I_Req1 is determined to be "NOT REQUEST", the input / output control unit 220 may output the Hold_N signal as "USE", the OE signal as a "USE" signal, and access the bus.

At this time, the hold signal (Hold) output from the microprocessor processing unit 100, the modem processing unit 2 (200B) to the modem processing unit N-1 (200N) is plotted with a high impedance (High Impedance) is outputted to the microprocessor processing unit 100 Is applied to.

Accordingly, the microprocessor processing unit 100 outputs a hold signal and performs the microprocessor processing unit (Wibro communication method) via the modem processing unit 1 (200A) through the data bus DataN / address bus AddressN / control bus ControlN. 100) provides an Internet service for inputting and outputting data to the modem processing unit 1 (200A).

As another example, in order to receive data using WiFi communication, the modem processor 2200B outputs a request signal O_Req2 for obtaining a bus use and access right.

Thus, as in the case where the modem processing unit 1 (200A) has obtained the bus access right, the modem processing unit 2 (200B) uses the ring structure protocol method in the modem processing unit 3 as " O_Req2 → I_Req3 → modem processing unit 3 → O_Req3 →… → O_ReqN-. 1 → I_ReqN → microprocessor processing unit 100 → O_ReqN → I_Req1 → modem processing unit 1 (200A) → O_Req1 → I_Req2 → modem processing unit 2 (200B) in sequence, and all other blocks use the bus. If it is not requesting, the modem processing unit 2 (200B) enters the enabled state after obtaining the bus use and access authority.

At this time, the hold signal (Hold) output from the modem processing unit 2 (200B) is output to the active low (Active Low), the hold signal (Hold) output from the other modem processing unit 1 (200A) and modem processing unit N-1 (200N) ) Is plotted with high impedance and output.

In another embodiment, when the service request of the mobile phone user detected by the microprocessor processing unit 100 is determined to be a service request for general data or voice call using CDMA communication, the modem processing unit N-1 200N uses a bus and A request signal (O_ReqN-1) for obtaining access authority is output as a "REQUEST" signal.

At this time, the modem processing unit N-1 (200N) outputs a signal O_ReqN-1 requesting bus usage and access rights in a ring structure protocol method.

Microprocessor processor 100, modem processor 1 (200A),... The modem processing unit N-2 uses the bus according to the bus usage and access authority request signals I_Req1, I_Req2, ... I_ReqN, O_Req1, O_Req2, ... O_ReqN, which are started by the modem processing unit N-1 (200N) and applied in the ring structure protocol method. After entering the access right and enters the enable state.

At this time, the hold signal Hold output from the modem processing unit N-1 (200N) is output as active low, and the modem processing unit 1 (200A) and the modem processing unit N-2 different from the microprocessor processing unit 100 are output. The output hold signal Hold is plotted with high impedance and output.

Accordingly, the modem processing unit N-1 (200N) performs CDMA communication through the modem processing unit N-1 (200N) via the data bus DataN / address bus / ControlN in response to the detection of the hold signal applied thereto. It provides a voice call and data communication service in a manner.

In addition, operations for communication between modem processing units are as follows.

For example, when the modem processing unit 1 (200A) tries to output data to the modem processing unit 2 (200B), the modem processing unit 1 (200A) obtains the bus access authority in the above-described order and transmits the data to the modem processing unit 2 (200B). Therefore, communication between modem processing units is performed.

On the contrary, when the modem processing unit 2 (200B) tries to transfer data to the modem processing unit 1 (200A), the modem processing unit 2 (200B) takes the bus access authority in the above-described order, and then transfers the data to the modem processing unit 1 (200A). By transmitting, data transmission in the opposite direction is made.

Although data communication between the two modem processing units has been described above, since the communication between the numbers is also performed in the same manner as the above operation, a detailed description thereof will be omitted.

In addition, although the microprocessor processing unit 100 performs data communication with one modem processing unit, the communication with the plurality of modem processing units is also performed in the same manner as the above-described operation by performing the above-described operation. , Specific description is omitted.

Detailed configuration of the microprocessor processing unit 100 and the modem processing unit 200A-200N in the above description will be described in more detail with reference to FIGS. 4A and 4B as follows.

The microprocessor processing unit 100 and the modem processing unit 200 include a request signal generator 110, 210, an input / output control unit 120, 220, a flag generation unit 130, 230, and an input / output unit 140, 240. It is configured to include.

The request signal generators 110 and 210 are connected to the control bus I_Control_N (I_Control_m) of the microprocessor unit 150 and the modem unit 250, and use and access the bus according to information applied through the control bus. An access request signal Req is outputted to the input / output controller 200.

The input / output control unit 120 or 220 may be connected to another modem processing unit or microprocessor processing unit connected in a ring structure protocol method when an access request signal Req for accessing a bus is applied from the request signal generator 110 or 210. Outputs a request signal (O_Req_N) (O_Req_m) for requesting bus access, and enables according to the bus access request signal (I_Req_N-1) (I_Req_m-1) applied by a previous modem processing unit or microprocessor in a ring structure protocol method. And outputs a hold signal Hold_m active-low indicating that the bus is authorized to use and access the bus.

In addition, when the input / output control unit 120 or 220 has a bus use and access authority, the data bus I_Data_N (I_Data_m) / address bus I_Address_N (I_Address_m) / control bus I_Control_N ( The bus usage and access control signal OE for I_Control_m is output so that a communication-based service desired by the user can be provided.

The flag generator 130 or 230 generates and records a flag indicating that the bus use and access authority is granted when the bus use and access authority is requested.

The input / output units 140 and 240 control the data bus Data_N / address bus Address_N / Address_m by the bus use and access control signal OE applied from the input / output controller 120 and 220. Data transmission and reception are performed through the bus Control_N (Control_m).

In addition, the input / output unit 140 or 240 may use the data bus Data_N / address bus Address_N when the bus usage and access control signal OE applied from the input / output control unit 120 or 220 is IN_ACTIVE. The signals output to (Address_m) / Control Bus (Control_N) (Control_m) are all made in three states (Tri_State).

That is, when the control signal OE is active, the signal output to the data bus Data_N / Data_m / Address bus Address_N / Address_m / Control bus N_Control_m is a microprocessor or a modem processor. I_Data_N, I_Data_m, I_Address_N, I_Address_m, I_Control_N, and I_Control_m signals are applied as they are.

Operation of the three-state (Tri_State) machine of the input and output unit 140, 240 is performed as shown in Figure 5, which will be described in detail as follows.

First, the constants are defined as follows.

#define NOT_USE = 1;

#define USE = 0;

#define NOT_REQUEST = 1;

#define REQUEST = 0;

The meaning of the constant above means that the variable operates in active low, and the values of the conditions for the transfer of each state machine in the definition of the constant are as follows.

Condition1 = Not (Condition2);

Condition2 = (Hold = = NOT_USE) &

            (((I_Req_m-1 = = NOT_REQUEST) & (Req = = REQUEST) &

                                            (Flag = = USE)) or

            (((I_Req_m-1 = REQUEST) or (Req = = REQUEST)) &

                                          (Flag = = NOT_USE)))

The condition of Condition2 is analyzed as follows.

This means that no one is using the bus, there is no bus requirement at the front, the bus is requested internally, and another block has finally used the bus before using it.

Condition 3 = Condition 1;

Condition 4 = Condition 2;

Condition5 = (Req = = REQUEST)

Condition 6 = Not (Condition 5);

Therefore, the state machine shown in Fig. 5 is operated according to each condition, and the output value in each state is as follows.

if ((S0) & (Condition1)) {

       O_Req_m = NOT_REQUEST; -/ * Request the bus on the next level * /

       Hold_m = NOT_USE; -/ * Don't access the bus * /

       OE = NOT_USE;}-/ * Put the bus output in three states * /

elseif (((S0) & (Condition2)) or (S1)) {

       O_Req_m = REQUEST; -/ * Request the bus on the next level * /

       Hold_m = NOT_USE; -/ * Don't access the bus * /

       OE = NOT_USE;}-/ * Put the bus output in three states * /

elseif (S2) {

       O_Req_m = REQUEST; -/ * Request the bus on the next level * /

       Hold_m = USE; -/ * Access the bus * /

       OE = USE;}-/ * Do not make the bus output tristate * /

Is output.

On the other hand, a flag indicating that the use of the bus and the right of access has been granted is operated as shown in FIG. 6 for each clock according to various state values.

Each flag is operated at each clock, which is operated as follows.

First, the constants are defined as follows.

#define ACTIVE = 0; -/ * Active state is low * /

#define NOT_ACTIVE = 1;

if (((flag = NOT_ACTIVE) & ((Reset = = ACTIVE) or NOT (S2))) or

  ((flag = USE) & ((Reset = = ACTIVE) or Not (S2) & (Hold = = ACTIVE)))

                  Flag <= NOT_USE;

else

                  Flag <= USE;

if (Flag = = USE) {

        if ((I_Req_m-1 = = NOT_REQUEST) & (Req = = REQUEST))

        O_Req_m = REQEST;

     else O_Req_m = NOT_REQEST;

}-/ * Print "REQUEST" only when the entire bus is accessed and there is no bus request at the front and the bus itself asks for the bus.

else {

    if ((I_Req_m-1 = = REQUEST) or (Req = = REQUEST))

        O_Req_m = REQEST;

    else O_Req_m = NOT_REQEST;

}-/ * Print "REQUEST" only when there is a bus request from the front end or when you request the bus when you have not accessed all the buses.

Second Embodiment

7 is a schematic diagram showing a connection between a microprocessor processor and a plurality of RF interface modules in a mobile phone according to a second embodiment of the present invention.

As shown, a plurality of modem processing units 400A-400N are configured to enable communication of Wibro, WiFi, GSM, and CDMA schemes having different wireless protocols and modulation schemes, and the plurality of modem processing units 400A. -400N) is a protocol for bus access is set in parallel with a control bus (ControlN) for performing one data bus (DataN) / address bus (AddressN) / data access control provided in the microprocessor processing unit 300 Connected.

In addition, after receiving and analyzing a hold signal (Hold) indicating whether each of the outputs from the modem processing units 400A-400N has the authority to use and access the bus, the corresponding interface module receives the bus use and access authority. Hold control unit 500 for outputting a substantially hold control signal (Hold) to have a separate configuration.

Therefore, the power consumption is lower than that of the hold signal detection method using a pull up resistor, thereby preventing unnecessary consumption of a battery having a limited capacity.

When any modem processing unit 400A-400N has a bus use and access right by the hold control unit 500, the control unit 500 becomes active low so that the microprocessor processing unit 300 can recognize information on the access right. If there is no information, the microprocessor processor 300 recognizes the floating value by outputting the high impedance.

In the case of the hold control unit 500,

if ((Hold_1 = = ACTIVE) or

   (Hold_2 = = ACTIVE) or…

     (Hold_N = = ACTIVE)) Hold = ACTIVE;

else Hold = NOT_ACTIVE;

It works.

Further, the microprocessor processing unit 300 → modem processing unit 1 (400A) → modem processing unit 2 (400B) →. → modem processing unit N-1 (400N) → bus utilization and access authority requests (O_Req, I_Req) consisting of microprocessor processing unit 300 are connected in a ring structure protocol structure.

Operations of blocks other than the hold control unit 500 for the signal processing for Hold shown in FIGS. 8A and 8B are described with reference to FIGS. 4A and 4B as the first embodiment. Since the content is the same, a description thereof will be omitted.

In the above, a preferred embodiment of an interface device of a multi-service mobile phone according to the present invention has been described, but the present invention is not limited thereto, and various modifications are made within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible and this also belongs to the scope of the present invention.

As described above, the present invention utilizes a limited number of input / output ports of the microprocessor processor by sharing a data bus / address bus / control bus by connecting a plurality of air interface modules and a microprocessor processor in a parallel interface structure in a mobile phone. To provide the effect.

In addition, the present invention provides the Internet-based data service and voice by performing the input and output of the data required by the wireless interface module that wants to use the interface using the ring-structured protocol to control the data bus / address bus / control bus There are features that provide efficiency in communication.

Claims (12)

A mobile phone comprising a plurality of air interface modules having different communication protocols and modulation schemes, and a microprocessor processor for controlling general operations for data communication and voice calls. And the microprocessor processor and the plurality of air interface modules are connected in a parallel interface structure sharing one data bus / address bus / control bus provided in the microprocessor. The method according to claim 1, In the plurality of air interface modules, a pull-up resistor connected to a power source at one end thereof is connected as a hold signal to indicate whether the user has authority to use and access a bus. Interface device of a multi-service cellular phone interconnected so that the modem processor can recognize it. The method according to claim 2, The plurality of air interface modules output the hold signal to an active low when the data bus / address bus / control bus is connected to a microprocessor processor and a parallel interface structure. In case of multi-service mobile phone interface device to output a floating value with high impedance. The method according to claim 1, And the plurality of air interface modules and the microprocessor processing unit are interconnected by a ring structure protocol to transmit and receive a data bus / address bus / control bus and a right access request signal. The method according to claim 1, And an external reset signal for initializing bus use and access rights to the plurality of air interface modules and the microprocessor processor. The method according to claim 1, The plurality of air interface modules have a "REQUEST" or "NOT REQUEST" signal that does not require the use of a bus between air interface modules by acquiring the right to occupy the data bus / address bus / control bus connected in a parallel interface structure. The interface device of the multi-service mobile phone delivered. The method according to claim 1, And the microprocessor processor is configured to acquire data of a data bus / address bus / control bus connected in a parallel interface structure and perform data communication with one air interface module. The method according to claim 1, The air interface module is connected to a control bus of a microprocessor processor, and comprises a request signal generator for outputting a bus use and access request signal to an input / output controller according to information applied through the control bus; When a bus use and access request signal is applied from the request signal generator, a bus access request signal is output to a next air interface modem or a microprocessor processor connected in a ring structure protocol method, and the air interface module or a microprocessor processor connected to the request signal generator is connected. It is enabled according to the bus usage and access request signal of the bus and outputs a hold signal indicating active permission to the bus usage and access, and when it has the bus usage and access authority, the data bus / address bus for the corresponding communication-based service. An input / output controller for controlling the use and access of the control bus; An input / output unit for performing data transmission / reception through a data bus / address bus / control bus according to a bus use and an access control signal of the input / output controller; When a bus use and access authority is requested from a previous air interface module, an interface apparatus of a multi-service mobile phone including a flag generator for generating and recording a flag indicating that bus use and access authority has been granted at the request of the input / output controller. . The method according to claim 8, And the input / output unit outputs three-state (Tri_State) signals when the bus use and access control signals are IN_ACTIVE. The method according to claim 8, And the input / output unit outputs the I_Data_m, I_Address_m, and I_Control_m signals that are applied from the microprocessor processor when the control signal is activated. A mobile phone comprising a plurality of air interface modules having different communication protocols and modulation schemes, and a microprocessor processor for controlling general operations for data communication and voice calls. The microprocessor processor and the plurality of air interface modules are connected in a parallel interface structure sharing one data bus / address bus / control bus provided in the microprocessor processor. After receiving and analyzing a hold signal indicating whether the user has authority to use and access a bus output from the plurality of air interface modules, and output a substantial hold control signal to allow the corresponding interface module to have a bus use and access right. Interface device of a multi-service mobile phone including a hold control unit. The method according to claim 11, The plurality of air interface modules output an active low value when the hold control unit receives a substantial right to the use and access of a data bus / address bus / control bus, and a high impedance when there is no bus use and access right. Interface device for a multi-service mobile phone that outputs a plotted value.

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