KR20090034140A - Mobile phone having multi-port memory and booting control method thereof - Google Patents

Abstract

A mobile terminal having a multi-port memory and a booting control method thereof are provided to enable the first controller to directly access to a memory in which information necessary for booting is stored without passing the second controller. The first memory(260) stores booting information for booting a portable terminal and a task for performing communication. The booting information comprises a booting executing code, a unique number allocated to the portable terminal and call related information. The second memory(270) stores an application program about an initial display of the portable terminal. The first controller(280) accesses the booting information stored in the first memory to perform booting. The second controller(300) initializes an application program by the first controller to display an initial screen.

Description

A mobile terminal having a memory having a plurality of ports and a boot control method {MOBILE PHONE HAVING MULTI-PORT MEMORY AND BOOTING CONTROL METHOD THEREOF}

The present invention relates to a portable terminal, and relates to a portable terminal having a memory having a plurality of ports and a boot control method.

As the technology of mobile communication is gradually changed from voice data processing to multimedia data processing such as moving pictures, the complexity of processing data to be processed in a portable terminal is increasing. Therefore, in recent years, the architecture has changed from a single processor structure that processes call software for processing a call to a multiprocessor structure that includes two or more processors.

Having a multi-processor architecture, a processor used in such a system as described above may be, for example, a modem processor that performs a time critical mobile communication function and a high computing capability to perform multimedia data processing. It is divided into an application processor that requires computing power.

Software running on these two processors will also be split. In this structure, the data communication function between the multiple processors is an important part of the function of the portable terminal.

Since most software data is stored in memory, it is necessary to use a memory interface for high-speed data transfer even among multiple processors. Currently, the multiprocessor architecture used is not a single chip that has a single communication processor and an application processor, but a multi chip, so that the communication processor and the application processor can perform high-speed data processing for the application processor. It does not have a structure.

In such a structure, a memory that is generally accessible to an application processor and a communication processor is provided to a peripheral device external to the modem. In other words, it can be regarded as an externally accessible type of memory.

1 is a block diagram showing a multi-processor system employed in a portable terminal according to the prior art.

As shown in FIG. 1, the communication processor 110 and the application processor 120 are connected to each other through a connection line L10, and the dual port DRAM 130 is configured with buses B1 and B2. The bus is busted to the communication processor 10 and the application processor 120, and the NAND memory 140 is busned to the application processor 120 through the set bus B3.

Here, the communication processor 110 may have a baseband processing function for performing modulation and demodulation of a communication signal, and the application processor 120 may provide an application function for processing communication data, performing games, entertainment, and the like. Can have

The dual ported DRAM 130 operates as a shared memory between the communication processor 110 and the application processor 120. In terms of the communication processor 110, the dual port DRAM 130 is an external memory. Accordingly, the communication processor 110 or the application processor 120 must copy the data to be transmitted to the dual ported DRAM 130 for data transmission, and the application processor 120 or the communication processor 110 may dual Data stored in the dual ported DRAM 130 must be copied to the NAND memory 140.

The NAND memory 140, in which the cell array has a NAND configuration, is a nonvolatile memory having a transistor memory cell having a floating gate. The NAND memory 140 may store data that is not erased even when the power is turned off. It is mounted to store data, and the dual ported DRAM 130 functions as a main memory for data processing of the processors 110 and 120.

However, in the portable terminal 100 having the multiprocessors 110 and 120 as shown in FIG. 1, when the NAND memory 140 is booted in the case, the communication processor 110 is connected to the NAND memory 140. There is a problem in that the NAND memory 140 cannot be accessed at an optimal timing because it is accessed directly through the application processor 120 rather than directly.

Since booting is performed after copying data necessary for booting stored in the mobile terminal 100 to the Dual Ported DRAM 130, the booting time is longer than necessary. A problem occurs.

In addition, as the additional functions included in the mobile terminal 100 increase, the amount of data stored increases, thereby increasing the boot time, thereby increasing user inconvenience.

The present invention provides a portable terminal and a method having a memory having a plurality of ports for booting by directly accessing a memory storing information necessary for booting the portable terminal from the first controller without passing through the second controller. .

In addition, a plurality of processors can access the shared memory area allocated in the memory cell array smoothly, thereby improving data transfer and processing speed, and easily expanding the memory capacity accessible by a specific processor when the memory capacity is expanded. It is.

According to an aspect of the present invention, there is provided a portable terminal including a memory having a plurality of ports, comprising: a first memory configured to store boot information for booting the portable terminal and a task related to performing a communication; A second memory for storing an application program associated with an initial screen of the first memory; a first controller for accessing boot information stored in the first memory and executing booting; and initializing the application program by the first controller; It characterized in that it comprises a second control unit for controlling to display.

In addition, the present invention provides a boot control method for a portable terminal having a memory having a plurality of ports. When the portable terminal is turned on in an off state, booting is performed by accessing boot information stored in a first memory. And a process of requesting initialization of an application program at the same time as transmitting the unique number of the mobile terminal, performing an initialization of the application program according to the request, executing an initial screen, and initializing the application program. And a process of checking whether the data is completed, and when the initialization of the application program is completed, switching from the initial screen to a standby screen where the user can perform a call function or a text message transmission / reception function.

The present invention made as described above can be performed more efficiently by storing information necessary for booting the portable terminal and making it accessible by a specific processor.

In addition, a plurality of processors can access the shared memory area allocated in the memory cell array smoothly, thereby improving data transfer and processing speed, and easily expanding the memory capacity accessible by a specific processor when the memory capacity is expanded. There is an advantage that can be.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is a block diagram illustrating a portable terminal having a memory having a plurality of ports according to a preferred embodiment of the present invention.

As shown in FIG. 2, the mobile terminal 200 according to an exemplary embodiment of the present invention includes a wireless transceiver 210, a data processor 220, an audio processor 230, a display 240, and a key input 250. ), A first memory 260, a second memory 270, a first controller 280, a dual port DRAM 290, and a second controller 300.

The wireless transceiver 210 performs a wireless communication function of the mobile terminal 200. The wireless transceiver 210 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal.

The data processor 220 includes a transmitter for encoding and modulating a signal transmitted from the wireless transceiver 210 and a receiver for demodulating and decoding a received signal. That is, the data processor 220 may be configured of a modem and a codec CODDEC. The codec may include a data codec for processing packet data and an audio codec for processing an audio signal such as voice. The codecs may be provided separately or included in the first controller 280 or the second controller 300.

The audio processor 230 reproduces a received audio signal output from the audio codec of the data processor 220 or transmits a transmission audio signal generated from a microphone to the audio codec of the data processor 220.

The display unit 240 may be formed of a liquid crystal display (LCD) or the like, and outputs various display data generated by the portable terminal 200. In this case, when the LCD is implemented using a touch screen method, the display unit 240 may operate as an input unit. The display unit 240 may be connected to the first controller 280 or the second controller 300.

The key input unit 250 includes function keys for setting various functions of the mobile terminal 200, and also includes a plurality of keys selected and input by a user for inputting information, and a key input pressed by the user. Is converted into a predetermined voltage signal and provided to the first controller 280 or the second controller 300.

The first memory 260 is a program for controlling the general operation of the mobile terminal 200 according to an embodiment of the present invention, the battery of the mobile terminal 200, the replacement of the system for reasons such as system failure, etc. Boot information such as boot execution code, international mobile equipment identity, and call related data (Non Volatile Memory: 'NVM') required to carry out a boot operation to turn the power ON. The terminal 200 stores a task, etc., related to performing communication generated while booting.

Here, the unique number (International Mobile Equipment Identity: hereinafter referred to as "IMEI") is an identification number assigned to the mobile terminal. Use type approval codes and serial numbers. In addition, a task represents a task generated for performing communication. Performing such a communication may call or receive a call to the number input by the user, and indicates a function of sending or receiving a text message to the number input by the user.

Meanwhile, the first memory 260 is an electrically erasable programmable read-only memory (EEPROM) in which user data is stored. The first memory 260 is free to read and write, and data generated during communication of the mobile terminal 200 in an absolute address method. To store them. This data includes detailed information such as call date, call duration, call history, and charges.

The second memory 270 stores basic codes and fonts of the mobile terminal 200 and uses a portion of the second memory 270 as a user data space. In addition, an application program related to an initial screen such as animation, an image, a video, and the like are booted so as to be switched from the second controller 300 to a standby screen available to the user.

The second memory 270 is a flash memory and is managed through a file system called an embedded file system (hereinafter, referred to as 'EFS'). User data (Pone book, SMS, Download Contents, etc.) are stored in the area of the embedded file system, and file information is stored in order to freely read and write the information stored in the current EFS area when the mobile terminal 200 is booted. Collecting memory initialization is required.

The controller performs a function of controlling the overall operation of the mobile terminal 200 according to an embodiment of the present invention, and may include the data processor.

The controller is composed of a first controller 280 and a second controller 300.

When the first controller 280 boots the portable terminal 200 due to battery replacement, system failure, or the like of the portable terminal 200, the boot execution code and the unique number (IMEI) prestored in the first memory 260. Access boot information such as booting.

In addition, at the same time as transmitting the unique number (IMEI) to the communication provider network, the dual port DRAM (290) is accessed to request the second control unit 300 to initialize the application program. At this time, if the unique number (IMEI) of the mobile terminal 200 registered by the user and the unique number (IMEI) of the current mobile terminal 200 are different from each other when joining the communication provider network, they are not registered.

Subsequently, when the second controller 300 initializes the application program, the first controller 280 checks whether the second controller 300 has completed the initialization of the application program, and performs a task related to communication. Control to generate in the memory 260.

On the other hand, it controls to store the data generated during the communication function in the first memory (260).

The second controller 300 initializes an application program stored in the second memory 270 according to a request of the first controller 280 to display an initial screen of a preset animation, image, video, etc. on the display 240. On the initial screen from the display unit 240, the user controls to switch to the standby screen on which the user can perform a call function or a text message transmission / reception function.

At this time, the user can send a call by inputting a phone number through the idle screen, or transmit a written text message, image, or other video to a number inputted. In contrast, the user can receive a call reception or a text message.

Meanwhile, user data such as a phone book stored in the second memory 270 may be used in the standby screen. When the user data request stored in the second memory 270 is requested on the standby screen, the second controller 300 controls the display unit 240 to display a waiting message or a waiting animation.

The second controller 300 controls the camera and the display unit 240 with a multimedia dedicated chip for performing a function related to multimedia.

In addition, the second controller 300 transmits data to the first controller 280 to transmit multimedia-related files while performing a multimedia-related function. In this case, the second control unit 300 and the first control unit 280 communicate using a communication means called a FIFO (Fist In First Out) or Dual Port DRAM (290).

The dual port DRAM 290 is a RAM having two ports, and has two address buses so as to communicate with the first controller 280 and the second controller 300. It is designed to be suitable for the control unit used for multiprocessing.

The dual port DRAM 290 transmits the multimedia-related data to the second controller 300 when the first controller 280 wirelessly receives the multimedia-related data, and the second controller 300 receives the wireless data. Control to transmit to the mobile terminal of the other party on the call through. In this way, the data transmission / reception related operation is controlled by the first controller 280 and the multimedia control data processing is controlled by the second controller 300 to efficiently distribute the load applied to each controller.

3 is a flowchart illustrating a boot control method of a portable terminal having a memory having a plurality of ports according to an exemplary embodiment of the present invention.

As shown in FIG. 3, when the power of the portable terminal 200 is turned on in an OFF state (S300) due to battery replacement, system failure, or the like of the portable terminal 200 (S300), the first control unit ( 280 performs booting by accessing booting information (boot execution code, IMEI, etc.) previously stored in the first memory 260 (S310) and an identification number assigned to the mobile terminal 200. Sending a unique number (IMEI) such as a type approval code, serial number, etc. to the communication provider network and simultaneously accessing the dual port DRAM (290) to request the second control unit 300 to initialize the application program (S320). ).

Thereafter, the second controller 300 initializes an application program according to a request of the first controller 280 to display an initial screen such as a preset animation, image, video, etc. on the display unit 240, and among the application programs. In addition to the screen execution part, various programs are initialized from the same platform (S330).

The first controller 280 checks whether the second controller 300 has completed the initialization of the application program (S340).

The first controller 280 checks whether the initialization of the application program is completed by the second controller 300, and when it is completed, controls the first memory 260 to generate a task for performing communication (S350). In operation S360, the second controller 300 switches from the initial screen of the display unit 240 to a standby screen where the user can perform a call function or a text message transmission / reception function.

In addition, the first controller 280 checks whether the initialization of the application program is completed by the second controller 300 and waits until the initialization of the application program is completed.

Thereafter, the user can perform a call function by calling a basic call function, that is, an input number through the idle screen, or send a text message, image, or other video inputted number. In addition, call reception and text messages may be received, and phone book data, text message data, and downloaded data stored in the second memory 270 may be used.

On the other hand, when the call function is performed, first, when a user inputs a telephone number and then enters a call key, the first controller 280 detects this and attempts to form a call with the number input by the user. Check if the task is created.

Then, if a task related to performing communication is generated, the first controller 280 detects this and controls to attempt to form a call with a caller number selected by the user. Thereafter, the control unit stores the data generated during the call function in the first memory 260.

In addition, if the task is not generated, the first controller 280 controls the second controller 300 to display a waiting message through the display unit 240.

As described above, a portable terminal and a boot control method including a memory having a plurality of ports according to an exemplary embodiment of the present invention can be made. Meanwhile, in the above description of the present invention, a specific embodiment has been described. There may be various embodiments without departing from the spirit of the invention.

1 is a block diagram showing a multi-processor system employed in a portable terminal according to the prior art

2 is a block diagram illustrating a portable terminal having a memory having a plurality of ports according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating a boot control method in a mobile terminal having a memory having a plurality of ports according to an exemplary embodiment of the present invention.

Claims (12)

In a portable terminal having a memory having a plurality of ports, A first memory configured to store booting information for booting the portable terminal and a task related to performing communication; A second memory for storing an application program relating to an initial screen of the portable terminal; A first controller accessing boot information stored in the first memory and executing booting; And And a second controller configured to perform an initialization of the application program by the first controller to display an initial screen. The method of claim 1, wherein the first control unit checks whether the initialization of the application program is completed by the second control unit, and when it is completed, controlling to switch from the initial screen to a standby screen for performing a call function or a text message transmission / reception function. A portable terminal having a memory having a plurality of ports, characterized in that. The plurality of ports of claim 1, wherein the first controller checks whether the initialization of the application program is completed by the second controller and waits until the initialization of the application program is completed. A mobile terminal having a memory. The portable terminal of claim 2, wherein the first control unit attempts to establish a call when it is generated by checking whether a task related to performing communication is generated. The memory having a plurality of ports according to claim 2, wherein the first controller controls the second controller to display a standby message on the standby screen when the task for performing the communication is not generated. Mobile terminal provided. The portable terminal of claim 5, wherein the first controller is configured to store data generated while performing the communication in a first memory. The portable terminal of claim 1, wherein the boot information includes a boot execution code, a unique number assigned to the portable terminal, and CALL related information. A boot control method in a portable terminal having a memory having a plurality of access ports, Performing booting by accessing pre-stored boot information when the portable terminal is turned on in an off state; Requesting initialization of an application program at the same time as transmitting the unique number of the portable terminal; Executing an initial screen by initializing an application program according to the request; Checking whether the initialization of the application program is completed; And When the initialization of the application program is completed, the memory having a plurality of ports comprising the step of controlling the user to switch from the initial screen to the standby screen to perform a call function or a text message transmission and reception function; Boot control method on one mobile terminal. The boot control method of claim 8, further comprising controlling to generate a task related to communication when the initialization of the application program is completed. The memory device of claim 8, further comprising: checking whether the initialization of the application program is completed and, if not, waiting for the initialization of the application program to be completed. Boot control method on one mobile terminal. The method of claim 9, wherein the controlling step comprises: checking whether a task related to performing communication is generated; And if the task for performing the communication is generated, controlling to attempt to establish a call. The portable terminal of claim 11, further comprising controlling to display a standby message on the standby screen when the task for performing the communication is not generated. Boot control method.

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