JP4339269B2 - Mobile phone bus monitor system and method - Google Patents

Description

  The present invention relates to a bus monitor system for a mobile phone. In particular, the present invention relates to a mobile phone bus monitor system, a method, and a program executed by a computer that facilitate analysis of a place where a problem occurs when reproducing a problem of a program of a mobile phone and a time zone.

The functions of mobile phones in recent years are not limited to simple voice communication functions, but have additional functions such as camera, mail, WEB browsing, and schedule management.
Along with this, the development scale of software is also increasing, and there is an undeniable increase in the possibility that defects will be introduced and the possibility that defects have not been completely eliminated.
Based on the above-mentioned phenomenon, that is, the possibility that mobile phones with malfunctions are likely to be extended to end users, a service that tries to provide modified software to end users in an easy way. Some telecommunications carriers, etc. are implementing, and the service content is that the software is updated using the Internet line.

The background of the need for such services suggests that as mobile phone software grows in size, it may not be able to completely eliminate the problem and come to the market.
In addition, due to the nature of a mobile phone, it is used in various scenes and places, and there may be a case where a trouble occurs only at a specific place and a specific time zone.

When such an event is reported, that is, a defect that occurs only at a specific location and at a specific time zone, the first difficulty is to reproduce the event. There is a high possibility that it cannot be reproduced.
In such a case, conventionally, a person who actually analyzes at a specific place where the defect occurs and at a time zone asks and tries to reproduce the defect.

  When the defect could be reproduced, various sequence information output from the mobile phone was acquired and an attempt was made to identify the cause of the defect. Normally, the mobile phone knows the sequence status via an interface it owns, for example, via a USB (Universal Serial Bus) I / F (interface) so that it can be understood to some extent that the mobile phone sequence status is known from the outside. It is possible.

If a failure cannot be identified at this stage, it is necessary to investigate the detailed operation of the software. Conventionally, an evaluation board simulating a mobile phone is taken to the place where the failure has occurred, and ICE (In-Circuit Emulator), etc. Was used to investigate the operation of the software.
The problem analysis as described above requires a lot of time and labor, and it takes time to provide the end user with software that corrects the problem.

  Also, as a prior art, when various subroutines are called at the subroutine level of software, they are left as flags on a RAM (Random Access Memory), and the system becomes unstable, resulting in resetting etc. In addition, a technique for storing the flag in a nonvolatile memory (ROM (Read Only Memory) or the like) is known.

However, with such a conventional technique, it is possible to determine the subroutine level of the software that was executed immediately before the system became unstable and the result reset etc. occurred. There was a problem that it was impossible to determine whether or not the cause was a malfunction.
In relation to such problems, there are the following conventional techniques.

  Conventionally, in order to dynamically observe data on a bus connecting a large number of integrated circuits, an integrated circuit connected by an address bus, a data bus, a control bus, one of the address bus and the data bus, and a control bus are connected. A data bus monitor device having an event condition port and a serial port, and a test bus control device for controlling the data bus monitor device according to a test data input / output, a test clock, a test mode selection output, and an event condition input signal to perform bus monitoring There are some which provide a digital bus monitor system including (see, for example, Patent Document 1).

However, in Patent Document 1 described above, integrated circuit bus monitoring is performed. However, trouble analysis requires a great deal of time and effort, and shortens the time until software for correcting the trouble is provided to the end user. It does not facilitate the analysis of the location and time zone where the problem occurs when reproducing the problem of the mobile phone program.
Conventionally, in order to provide a bus monitor circuit capable of performing operation confirmation and state confirmation of a memory device, an IO device, etc. at high speed, a setting address register for holding a setting address signal corresponding to an address signal, and an address mask signal When the address signal matches the address in the area specified by the setting address signal and the address mask signal, the match detection signal is output as an active state. Address match detection circuit, a clock generation circuit that generates a clock signal when the match detection signal is in an active state, and an access that matches the mode signal is made, and a data bus each time the clock signal is input The above data signal is taken in and cumulative calculation processing is performed. By having the cormorants checker circuit, there is also intended to solve the above problem (for example, see Patent Document 2).

However, in Patent Document 2 described above, a bus monitor circuit is provided. As described above, however, failure analysis requires a great amount of time and effort, and it takes time until software for correcting the failure is provided to the end user. However, it is not easy to analyze the location and time zone where the failure occurs when reproducing the failure of the mobile phone program.
Conventionally, a trace data collection function is provided in the mobile phone terminal device in order to trace the operation of the control unit of the mobile phone terminal device and verify whether the control unit is operating normally. Is installed. When the mobile phone terminal device is used, the address value processed by the control unit, the data value to be written to or read from the address value, and the trace data including the timing value are stored in the memory unit, and the display unit or the external device There is also one that outputs to (for example, see Patent Document 3).

  However, in Patent Document 3, in order to verify whether the control unit of the mobile phone terminal device is operating normally, the trace data is stored in the memory unit and is output to the display unit or an external device. However, as mentioned above, failure analysis requires a lot of time and effort, shortens the time until software that corrects the failure is provided to the end user, and causes failure when reproducing the failure of the mobile phone program. It does not facilitate the analysis of the place and time zone where the error occurs.

  Conventionally, in order to provide a data debugging technique that does not interfere with a parallel processing system, a debugging program running on one processor is generated on a shared memory bus in a debugging system for application programs executed in a parallel processor computer system. The data event is identified as a breakpoint necessary to identify a data error, and the bus monitor is programmed to detect when the data event occurs on the shared memory bus, and the trace memory detects the data event detected in time. Some are provided for recording with a stamp, the trace memory is read and analyzed for the determination of data errors generated by the program (see, for example, US Pat.

However, in Patent Document 4 described above, the data situation is detected by the bus monitor. However, as described above, the failure analysis requires a great amount of time and effort, and the software for correcting the failure is provided to the end user. However, it does not shorten the time until it is done, and does not facilitate analysis of the place and time zone where the problem occurs when reproducing the problem of the mobile phone program.
Another object of the present invention is to provide an external module, a mobile communication terminal, a mobile communication system, and a test method that can easily collect internal state information of a mobile communication terminal. An SIM card that is sometimes attached to a mobile phone terminal, and communicates with the mobile phone terminal to collect internal state information about the internal state of the mobile phone terminal, and internal state information collected by the internal information collection unit In addition, the mobile communication terminal is a mobile phone terminal to which the SIM card is attached when in use, and acquires the internal state information of the mobile phone terminal to the SIM card. Some of them are equipped with a UIMF that outputs them (for example, see Patent Document 5).

However, in Patent Document 5 described above, the internal state information relating to the internal state of the mobile phone terminal is collected by communicating with the mobile phone terminal in the field test. However, the subject of the present invention is a program for the mobile phone without using the field test. It is not intended to facilitate the analysis of the location and time zone where the problem occurs when reproducing the problem.
Conventionally, in order to provide a mobile radio terminal that can automatically perform desired settings without bothering the user, the memory includes a setting information storage area that stores setting information of the mobile radio terminal. A user-specific setting information storage area for storing a user-specific setting file corresponding to a plurality of different EF_IMSIs. The control unit controls each part of the mobile radio terminal. Various control operations are performed according to the information recorded in the setting information storage area, and the control unit sets information corresponding to EF_IMSI read from the USIM card as a new control function for each user. Some are read from the information storage area and recorded in the setting information storage area (see, for example, Patent Document 6).

However, in the above-mentioned Patent Document 6, a USIM card is used in the mobile radio terminal, but it does not facilitate analysis of the place and time zone where the trouble occurs when reproducing the trouble of the mobile phone program.
Conventionally, in order to be able to observe the state of the bus without providing a bus monitor connector on the bus, the state in which the CPU accesses the RAM, the first ROM, or the second ROM via the CPU bus and the memory controller Observation is performed by a bus monitor provided in the controller, and information obtained by the observation is sequentially stored in the trace memory every bus cycle. When an abnormality occurs in a page printer or the like, it is possible to know the state of the CPU bus by extracting and analyzing information stored in the trace memory, and in some cases, the cause of the abnormality can be investigated. (For example, refer to Patent Document 7).

  However, in Patent Document 7, the CPU monitors the state of accessing the RAM, the first ROM, and the second ROM via the CPU bus and the memory controller, and searches for the cause of the abnormality. It takes time and effort, shortens the time until software that corrects the problem is provided to the end user, and facilitates analysis of the location and time zone where the problem occurs when reproducing the problem of the mobile phone program is not.

JP 2000-148603 A JP-A-9-146854 JP 2003-78604 A JP-A-4-229340 JP 2004-80206 A JP 2002-368871 A JP 2000-293441 A

  Therefore, in view of the above problems, the present invention shortens the time until software for which a defect is corrected is provided to the end user, and analyzes the place and time zone where the defect occurs when reproducing the defect of the mobile phone program. It is an object of the present invention to provide a portable telephone bus monitor system, a method, and a program executed by a computer.

In order to solve the above-mentioned problems, the present invention provides a memory card controller for controlling writing and reading of data to and from a memory card inserted in a bus monitor system of a mobile phone, and access from a CPU on a memory bus to a memory. A bus monitor that monitors on the memory bus and outputs as bus monitor data, and alternatively selects normal data during normal use including bus monitor data from the bus monitor and phone book data stored by the user, A switch for outputting and writing selected data to the memory card controller and a memory card inserted into the memory card controller, and a bus to which the identified memory card writes bus monitor data from the bus monitor Dedicated monitor If a Memory Card controls the switching of the switch to select the bus monitor data from the bus monitor, the if the identified memory card is a normal memory card introduced writing the ordinary data There is provided a bus monitor system for a mobile phone, comprising a switching controller for controlling switching of the switch so as to select normal data.

  Further, the switching controller identifies a memory card inserted into the memory card controller when the power of the cellular phone is turned on. When the inserted memory card is a memory card dedicated for bus monitoring, the switch is set. Switch to select bus monitor data from the bus monitor, and allow the bus monitor to start.

Furthermore, the present invention provides a memory card controller that controls writing and reading of data to and from a memory card inserted in a bus monitor system of a mobile phone, and a first LSI on a first memory bus. A first bus monitor that monitors access from the CPU to the first memory on the memory bus and outputs the data as first bus monitor data; and is incorporated in the second LSI and is on the second memory bus. A second bus monitor that monitors the access from the second CPU to the second memory on the memory bus and outputs it as second bus monitor data; and a first memory bus built in the first LSI The switching controller above and the power stored in the second LSI, on the second memory bus, and stored by the user. A data transfer unit that transfers normal data including book data during normal use; and the second bus monitor data from the second bus monitor and the normal data from the data transfer unit built in the second LSI. A first switch that selectively selects data; a first serial interface built in the first LSI; on a first memory bus; and a second LSI; A second serial interface on the memory bus and connected to the first serial interface, a first bus monitor data from the first bus monitor, and an output from the first switch are alternatively selected. And a second switch for outputting and writing the selected data to the memory card controller, and the switching controller includes a power supply for the mobile phone. The memory card inserted into the memory card controller is identified when ON, and the activation setting of the first bus monitor or the second bus monitor is determined; and the identified memory card is the first bus monitor or the second bus monitor. of a bus monitor private memory card to write bus monitor data from the bus monitor further, when the first bus monitor start is set the first bus monitor data from the first bus monitor controls the switching of the second switch to select; an identification memory over card of the bus monitor memory card, further, if the second bus monitor start is set first The switching of the second switch is controlled so as to select data from the switch, and the first memory bar is further controlled. A switching control signal is sent to the data transfer unit via the first serial interface, the second serial interface, and the second memory bus, and the second bus monitor outputs a second control signal to the data transfer unit. Control switching of the first switch to select bus monitor data; and if the identified memory card is a normal memory card that writes the normal data, select the data from the first switch In addition, the switching of the second switch is controlled, and further, a switching control signal is sent to the data transfer unit via the first memory bus, the first serial interface, the second serial interface, and the second memory bus. Sending the data transfer unit to select the normal data from the data transfer unit. Providing a bus monitoring system of the mobile telephone, characterized in that to control the switching of the switch.

Furthermore, the present invention provides a memory card controller that controls writing and reading of data to and from a memory card inserted in a bus monitor system of a cellular phone, and is incorporated in the first LSI, and is A first serial interface on a first memory bus for accessing the second memory and a second memory bus built in the second LSI for accessing the second memory from the second CPU; A second serial interface connected to the first serial interface and a built-in circuit in the first LSI, the first memory accesses the first memory from the first CPU on the first memory bus. Monitor on the bus and further via the second serial interface and the first serial interface Te, a bus monitor that outputs the access from the second LSI of the second second CPU on the memory bus to the second memory as monitored bus monitor data on the first memory over the bus, the During normal use including a switching controller built in the first LSI and on the first memory bus, and on the second memory bus and on the second memory bus, including the phone book data stored by the user A data transfer unit for transferring the normal data, and the bus monitor data from the bus monitor and the normal data from the data transfer unit are alternatively selected, and the selected data is output to the memory card controller and written. The switching controller includes a memo inserted into the memory card controller when the mobile phone is powered on. Identifies Kado; switching of the switch to when the identified memory card is bus monitor private memory card to write bus monitor data from the bus monitor selects the bus monitor data from the bus monitor And when the identified memory card is a normal memory card for writing the normal data, the switching of the switch is controlled so as to select the normal data from the data transfer unit. A mobile phone bus monitor system is provided.

Further, the memory card dedicated to the bus monitor is a UIM card.
Furthermore, the present invention provides a memory card controller for controlling writing and reading of data to and from a memory card inserted in a bus monitor system of a mobile phone, and access from the CPU on the memory bus to the memory on the memory bus. The bus monitor for monitoring and outputting as bus monitor data, and the normal data for normal use including the bus monitor data from the bus monitor and the phone book data stored by the user are selected, and the selected data is stored in the memory. A code for exclusive use of a bus monitor on a memory card inserted into the memory card controller when a plurality of predetermined keys among the switches for outputting and writing to the card controller and the operation keys of the cellular phone are pressed. To see if it exists If a code dedicated to the bus monitor exists in the confirmed memory card, the bus monitor data from the bus monitor is selected and the switching of the switch is controlled so as to write to the memory card. A bus monitor system for a mobile phone, comprising: a switching controller that controls switching of the switch so that the normal data is selected and written to the memory card when there is no code dedicated to the bus monitor. To do.

  Further, the switching controller identifies a memory card inserted into the memory card controller when the power of the mobile phone is turned on, and the switch is used when a code dedicated to the bus monitor exists in the inserted memory card. Is switched to select the bus monitor data from the bus monitor, and the activation of the bus monitor is permitted.

Further, the switching controller switches the switch so as to select the normal data, judges whether permission is set, sets permission, and detects an error state of the operating software spontaneously. In this case, the bus monitor is activated by switching the switch to the bus monitor side.
Further, the bus monitor is configured such that when the CPU incorporated in the first LSI, the first memory, and the second memory incorporated in the second LSI are connected on the same memory bus, Monitors access to memory and second memory and outputs bus monitor data.

Furthermore, the present invention provides a memory card controller that controls writing and reading of data to and from a memory card inserted in a bus monitor system of a mobile phone, and a first LSI on a first memory bus. A first bus monitor that monitors access from the CPU to the first memory on the memory bus and outputs the data as first bus monitor data; and is incorporated in the second LSI and is on the second memory bus. A second bus monitor that monitors the access from the second CPU to the second memory on the memory bus and outputs it as second bus monitor data; and a first memory bus built in the first LSI a switching controller in the above, incorporated in the second LSI, in a second memory bus, electropneumatic user saves A data transfer unit for transferring normal data for normal uses, including book data, the built in the second LSI, the normal from the second bus monitor data and the data transfer unit from said second bus monitor a first switch for alternatively selecting the data, the built in the first LSI, the first serial interface in the first memory bus, is incorporated in the second LSI, the second A second serial interface on the memory bus and connected to the first serial interface, a first bus monitor data from the first bus monitor, and an output from the first switch are alternatively selected. And a second switch for outputting and writing the selected data to the memory card controller, and the switching controller includes a power supply for the mobile phone. When a plurality of predetermined keys among the operation keys of the mobile phone are pressed when the mobile phone is turned on, it is confirmed whether there is a dedicated bus monitor code in the memory card inserted into the memory card controller. The activation setting of the first bus monitor or the second bus monitor is determined; if the confirmed memory card has a code dedicated to the bus monitor, and the first bus monitor activation is set, the first Control the switching of the second switch to select the first bus monitor data from the other bus monitor; there is a dedicated bus monitor code on the identified memory card, and the second bus monitor is activated If it is set, control the switching of the second switch to select the data from the first switch, and In addition, a switching control signal is sent to the data transfer unit via the first memory bus, the first serial interface, the second serial interface, and the second memory bus, and the second bus is sent to the data transfer unit. The switching of the first switch is controlled so as to select the second bus monitor data from the monitor ; if there is no code dedicated to the bus monitor in the confirmed memory card, the data from the first switch And switching control to the data transfer unit via the first memory bus, the first serial interface, the second serial interface, and the second memory bus. Transmitting the signal and selecting the normal data from the data transfer unit to the data transfer unit. Providing a bus monitoring system of the mobile telephone, characterized in that to control the switching of the first switch.

Furthermore, the present invention provides a memory card controller that controls writing and reading of data to and from a memory card inserted in a bus monitor system of a cellular phone, and is incorporated in the first LSI, and is A first serial interface on a first memory bus for accessing the second memory and a second memory bus built in the second LSI for accessing the second memory from the second CPU; A second serial interface connected to the first serial interface and a built-in circuit in the first LSI, the first memory accesses the first memory from the first CPU on the first memory bus. Monitor on the bus and further via the second serial interface and the first serial interface Te, a bus monitor that outputs the access from the second LSI of the second second CPU on the memory bus to the second memory as monitored bus monitor data on the first memory over the bus, the During normal use including a switching controller built in the first LSI and on the first memory bus, and on the second memory bus and on the second memory bus, including the phone book data stored by the user A data transfer unit for transferring the normal data, and the bus monitor data from the bus monitor and the normal data from the data transfer unit are alternatively selected, and the selected data is output to the memory card controller and written. And a switch that controls a plurality of predetermined operation keys among the operation keys of the mobile phone when the power of the mobile phone is turned on. When the key is pressed, the memory card inserted into the memory card controller is checked for a dedicated bus monitor code. If the confirmed memory card has a dedicated bus monitor code, The switching of the switch is controlled so as to select the bus monitor data from the bus monitor, and if the code dedicated to the bus monitor does not exist in the confirmed memory card, the normal data from the data transfer unit is selected. Thus, a bus monitor system for a mobile phone is provided, which controls the switching of the switch.

Further, on the screen dedicated to the bus monitor displayed on the mobile phone, the bus monitor is started / stopped, the address range to be acquired, and the relationship between the address and data (date) are displayed.
Further, according to the present invention, the bus monitor data written in the memory card is prohibited from being displayed on the display unit from the operation of the mobile phone.
Furthermore, the area of the memory card in which the bus monitor data is written is locked and prohibited from being taken out from the mobile phone to a personal computer.

Further, the bus monitor data written to the memory card is encrypted.
Further, the bus monitor data accumulated in the memory card is transmitted to the communication operator of the mobile phone via the Internet line.
Furthermore, the memory card controller writes ASCII or binary format bus monitor data to the memory card.

  Further, the bus monitor receives a clock signal, a write signal, a read signal, and a chip select signal from the CPU, latches a time stamp with the write signal and the read signal, and each time stamp latches the time and address on the memory bus. The type of data and read / write is monitored and written as the bus monitor data in a memory card dedicated to the bus monitor inserted into the memory card controller.

Furthermore, the present invention relates to a bus monitoring method for a mobile phone, wherein a memory card inserted into a memory card controller includes a memory card dedicated for bus monitoring in which the bus monitoring data is written or telephone book data stored by a user. Identifying with a dedicated code whether it is a normal memory card to which normal data is written , monitoring the memory access from the CPU on the memory bus on the memory bus after identification, and outputting as bus monitor data; When the identified memory card is a memory card dedicated to the bus monitor, the step of writing the bus monitor data to the memory card dedicated to the bus monitor, and when the identified memory card is the normal memory card Is the normal memory It provides a bus monitor method for a portable telephone characterized in that it comprises a step of writing the ordinary data into the card.

Further, the present invention provides a method for determining whether or not a plurality of designated keys among the operation keys of the mobile phone are pressed in the bus monitoring method of the mobile phone, and is inserted into the memory card controller after the key is pressed. Confirming whether there is a dedicated bus monitor code in the memory card, and monitoring the memory access from the CPU on the memory bus on the memory bus and outputting it as bus monitor data after confirmation. user memory card when the process of writing the bus monitor data on a memory card, which is the bus monitor dedicated code confirmed memory card does not exist if the bus monitor code specific to the memory card is present and Normal data including normal phone book data stored by Further comprising a step of writing to provide a bus monitor method for a portable telephone according to claim.

  As described above, according to the present invention, access from the CPU on the memory bus to the memory is monitored on the memory bus and output as bus monitor data, and the memory card inserted into the memory card controller stores the bus monitor data. Identify whether the memory card is dedicated to the bus monitor to be written or the normal memory card to which normal data including normal phone book data is written, and if the identified memory card is a memory card dedicated to the bus monitor The bus monitor data is written to the monitor dedicated memory card, and when the identified memory card is a normal memory card, the normal data is written to the normal memory card. LSI built-in memory ( Program) and all accesses to the memory built into other LSIs can be recorded, and the recorded data can be stored in a memory card, which is an external storage device. Even without the use of simple means, detailed operation analysis of software can be performed only with a mobile phone, and the time required for failure analysis can be reduced.

The mode to record the operation of the software has a mode to start the software itself only when it is artificially started and only when the operating software can detect the error state spontaneously. As a result, it is possible to automatically save a log (log) in the event of a failure that occurs during normal use, or an event that may cause the failure, and later It becomes possible to analyze.
Moreover, in order to be in the bus monitor activation mode when the cellular phone is activated, a memory card ID card dedicated to the bus monitor is required. With an ID card that is a normal memory card generally used by the user, The bus monitor cannot be activated. In the third-generation mobile phone, a UIM card can be used as a memory card dedicated to the bus monitor.

  The bus monitor data collected on the ID card, which is a dedicated memory card for the bus monitor, is useful for analysis by the telecommunications carrier when a malfunction occurs in the mobile phone used by the user. The bus monitor data stored in the ID card for permission to start the bus monitor can be provided to the communication carrier through the Internet line.

  Further, it is determined that a plurality of specified keys among the operation keys of the cellular phone are pressed, and the access from the CPU on the memory bus to the memory is monitored on the memory bus and output as bus monitor data. Check if there is a dedicated bus monitor code on the memory card inserted in the card controller, and if there is a dedicated bus monitor code on the confirmed memory card, write the bus monitor data to the memory card and confirm it. When the memory card does not have a dedicated bus monitor code, normal data is written to the memory card. For example, when using a memory card to write normal data on a second-generation mobile phone, etc. The memory card 170 is distinguished from normal data. It has become possible to write the bus monitor data to.

Furthermore, when a predetermined key among the operation keys of the cellular phone is pressed when the cellular phone is activated, the bus monitor is set to the activation mode, and a plurality of cases where the probability that the user erroneously presses during normal use is extremely low. It can be a key combination.
Furthermore, the present invention can be applied to a mobile phone in which two LSIs each having a CPU and a memory are each provided with a bus monitor, and the two LSIs are connected by a serial I / F, which may be useful or useful for analysis. It becomes possible to monitor the memory bus of the LSI on the other side.
Further, the present invention can be applied to a mobile phone in which one of two LSIs having a CPU and a memory is provided with a bus monitor and the two LSIs are connected by a serial I / F. Benefits if you do not need a monitor in real time

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a mobile phone bus monitor system according to the present invention. As shown in the figure, an LSI (Large Scale Integrated Circuit) 110 is provided in the mobile phone, and an LSI 120 is connected to a memory bus 130 of the LSI 110.
The memory bus 130 is a common signal path for the bus clock (BUSCLK), address, and data.

The LSI 110 includes a CPU (Central Processing Unit) 111, a ROM (Read Only Memory) 112, a RAM (Randam Access Memory) 113, and a switching controller 114 connected to the memory bus 130, and has, for example, a voice communication function.
The LSI 120 includes a ROM and a RAM (not shown), and has a telephone directory function, a mail function, a WEB browsing function, a schedule management function, and a camera function.

Here, a program (software) for operating the mobile phone is written on the ROM 112, and the CPU 111 reads the program from the ROM 112 and executes the program.
The RAM 113 is used for a work area, data saving, and storage of various data.
The CPU 111 controls the memory bus 130 and uses the chip select signal CSn (n = 0, 1, 2) to select the ROM 112, RAM 113, and LSI 120, respectively, and write signal (WRB) and read signal respectively. (RDB) is output, and the ROM 112, RAM 113, and LSI 120 are written and read out.

The switching controller 114 controls a connection source of a switch 150 to be described later according to a command from the CPU 111, and has a memory card identification unit 114A.
Further, a bus monitor (BUSmoni) 140 is connected to the memory bus 130 between the LSI 110 and the LSI 120. The bus monitor 140 monitors the memory bus 130 in order to monitor the operation of software in the mobile phone in detail, and the CPU 111 All the addresses, data, read / writes, and times when they are accessed from the ROM 112, RAM 113, and LSI 120 are acquired and output as bus monitor data.

A switch (SW) 150 is connected to the bus monitor 140. The switch 150 inputs bus monitor data from the bus monitor 140, and further, data stored by the user during normal use from the LSI 120, such as telephone directory data. The normal data is input, and one is switched by the switching control signal (s0) from the switching controller 114.
A memory card controller 160 is connected to the switch 150, a memory card 170 is inserted into the memory card controller 160, and the memory card controller 160 changes the format so that data from the switch 150 can be stored in the inserted memory card 170. Then, data is written to and read from the memory card 170.

The memory card 170 is an external storage device. The memory card 170 stores normal data including telephone directory data in an ID (Identification) card that is generally used by the user, and bus monitor data. There is a memory card dedicated to bus monitoring that is stored on a dedicated ID card.
In addition to the bus monitor data storage function, the bus monitor dedicated memory card is a function that allows the bus monitor 140 to be activated when it is inserted as the memory card 170 in the memory card controller 160 when the mobile phone is turned on. Have

Here, the bus monitor dedicated memory card means a UIM (User Identity Module) card used in, for example, a third generation mobile phone, and the UIM card is contractor information issued by a mobile phone company. Is an IC card in which is recorded, and is known to be used for user identification by being inserted into a mobile phone.
When the memory card 170 is a memory card dedicated to the bus monitor, the UIM card is inserted into the memory card controller 160 and the bus monitor data is stored in the UIM card. The binary format, which is generally known to have a smaller capacity than the ASCII format, may be used.

The capacity of the UIM card is, for example, 64 Mbytes, and bus monitor data is written to the UIM card until the capacity is reached.
Further, the memory card identification unit 114A of the switching controller 114 identifies whether the ID card of the memory card inserted into the memory card controller 160 is an ID card of a memory card dedicated to the bus monitor via the switch 150. The identification information is reported to the CPU 111.

When the ID card of the memory card dedicated for bus monitoring is inserted into the memory card controller 160 based on the identification information from the memory card identification unit 114A of the switching controller 114, the CPU 111 switches the switch 150 to the switch controller 114. The control signal (s0) is issued so as to select the bus monitor 140.
FIG. 2 is a timing chart for writing bus monitor data to the memory card 170 which is a UIM card.

  The following description is for asynchronous memory for simplicity. As shown in the figure, the bus monitor 140 receives a chip select signal (CSn), a bus clock (BUSCLK), a write signal (WRB), and a read signal (RDB) from the CPU 111 of the LSI 110, and addresses from the memory bus 130. The data is acquired, the time stamp is latched at the rising edge of the write signal (WRB) and the read signal (RDB), and the bus monitor data is acquired.

The increment width of the time stamp is one clock width of the bus clock (BUSCLK), which is sufficiently faster than the memory access cycle.
Instead of the bus clock (BUSCLK), a clock may be supplied exclusively for the bus monitor 140, counted up with the clock, and the time stamp latched.
FIG. 3 is a diagram showing an example of the bus monitor data acquired in FIG. As shown in this figure, time (minute, second, m second, μ second) from the latched time stamp, chip select signal (CSn), address from the memory bus 130, data from the memory bus 130, write signal (WRB) ), Read (read) / write (write) type is acquired as bus monitor data from the read signal (RDB).

FIG. 4 is a flowchart for explaining a start mode of the bus monitor 140 of FIG. As shown in the figure, in step 201, the user turns on the mobile phone.
In step 202, when the power of the mobile phone is turned on, the memory card identification unit 114A of the switching controller 114 determines whether or not the memory card 170 inserted into the memory card controller 160 is a memory card dedicated for bus monitoring. If an ID card, which is a normal memory card, is inserted into the memory card controller 160, the process proceeds to step 206.

  In step 203, if a memory card dedicated to the bus monitor is inserted into the memory card controller 160, the switching controller 114 switches the switch 150 to the bus monitor 140 side and activates the bus monitor 140. In this case, only the bus monitor 140 is activated, and the function as a normal mobile phone can be used without any problem.

In step 204, bus monitor data is written to the bus monitor 140.
In step 205, a screen dedicated to bus monitoring is activated on the display unit of the mobile phone. On the bus monitor dedicated screen, the bus monitor 140 is started / stopped (log acquisition start / stop), various trigger events, for example, the range of addresses to be acquired and the relationship between the address and data (date) are expected values. Can be set. End the process.

If a normal ID card is inserted in the memory card controller 160 in step 206, the switching controller 114 switches the switch 150 to the LSI 120 side, starts normally, and ends the process.
In this way, to activate the bus monitor 140 when the cellular phone is activated, an ID card for the memory card dedicated to the bus monitor is required, and a normal memory card generally used by the user is used. A certain ID card prevents the bus monitor 140 from starting up.

  The bus monitor data accumulated in the ID card of the memory card dedicated to the bus monitor 140 of the bus monitor 140 is useful for the carrier to analyze when a malfunction occurs in the mobile phone used by the user. The bus monitor data that is spontaneously stored in the ID card of the memory card dedicated to the bus monitor of the bus monitor 140 can be provided to the communication carrier via the Internet line.

Note that the ID card, which is a memory card dedicated to the bus monitor, is a UIM card as described above.
Therefore, according to the present invention, there is provided means for recording the software operation in the mobile phone in detail, specifically, from the CPU incorporated in the LSI to the memory (program) incorporated in the same LSI. Since all accesses to the memory built into other LSIs are recorded and the recorded data is stored in a memory card as an external storage device, this makes it possible to use large-scale means such as an evaluation board and ICE. Even if it is not used, it is possible to perform detailed operation analysis of software only with a mobile phone, and it is possible to shorten the time of failure analysis.

  Next, in a mobile phone that does not have a UIM card used as a third-generation mobile phone that is an ID card of a memory card dedicated to the bus monitor 140, as an ID card that is a memory card dedicated to the bus monitor, for example, When a memory card is used to write normal data in a second generation mobile phone or the like, the bus monitor data is written to the memory card 170 together with the normal data.

In this case, the bus monitor data is written in the memory card 170 so as to be distinguished from normal data, and a code dedicated to the bus monitor is provided to allow the bus monitor 140 to be activated.
Further, the bus monitor 140 is set to the start mode when a predetermined key among the operation keys of the mobile phone is pressed when the mobile phone is started.

In this case, the predetermined key is, for example, a state in which three or more specific keys are pressed at the same time as a combination of a plurality of keys that are extremely unlikely to be erroneously pressed by the user during normal use. Hereinafter, activation of the bus monitor 140 will be described in detail.
FIG. 5 is a flowchart illustrating a start mode of the bus monitor 140, which is a modification of FIG. As shown in the figure, in step 211, the power of the mobile phone is turned on by the user.

In step 212, when the power of the mobile phone is turned on, the switching controller 114 determines whether or not a predetermined key among the operation keys of the mobile phone is pressed. If not, the process proceeds to step 217.
In step 213, when a predetermined key is pressed, the switching controller 114 switches the switch 150 to the bus monitor 140 side.

The memory card identification unit 114 </ b> A of the switching controller 114 confirms whether a normal memory card inserted into the memory card controller 160 has a dedicated bus monitor code that permits the activation of the bus monitor 140. If not, the process proceeds to step 217.
In step 214, if there is a bus monitor dedicated code that permits the bus monitor 140 to be activated in the memory card 170, the switching controller 114 switches the switch 150 to the bus monitor 140 side and activates the bus monitor 140. In this case, only the bus monitor 140 is activated, and the function as a normal mobile phone can be used without any problem.

In step 215, bus monitor data is written to the bus monitor 140.
In step 216, a screen dedicated to the bus monitor is activated on the display unit of the mobile phone. On the bus monitor dedicated screen, the bus monitor 140 is started / stopped (log acquisition start / stop), various trigger events, for example, the range of addresses to be acquired and the relationship between the address and data (date) are expected values. Can be set. End the process.

In step 217, if a predetermined key is not pressed when the power of the mobile phone is turned on, or if there is no bus monitor dedicated code for permitting activation of the bus monitor 140 in the memory card 170, the switching controller 114 switches the switch 150 to the LSI 120 side, starts normally, and ends the process.
In this way, in order to set the bus monitor 140 in the startup mode when the mobile phone is started up, it is necessary to press a predetermined key, and in the normal ID card generally used by the user, the bus monitor 140 is required. Can not be started.

  Further, the bus monitor data stored in the memory card 170 is useful for analysis by a communication carrier when a failure occurs in the mobile phone used by the user, and the user voluntarily collects in the memory card 170. The bus monitor data can be provided to the carrier through the Internet.

  FIG. 6 is a flowchart illustrating a start mode of the bus monitor 140, which is a modification of FIG. As shown in this figure, as compared with FIG. 5, even when the bus monitor 140 is not activated in step 228, if the software can detect the error state of the software itself, the bus monitor 140 is Regarding the activation and writing of the bus monitor data to the memory card 170, the user determines in advance whether to permit or not by menu operation or the like. In this case, the upper limit capacity value of the bus monitor data stored in the memory card 170 may also be set. If not permitted, the process is terminated.

In step 229, when the permission is granted and the software running on the CPU 111 detects an error state, the switching controller 114 switches the switch 150 to the bus monitor 140 side and proceeds to step 224 to start the bus monitor 140. To do.
As described above, when the operating software detects an error state, the reason why the user needs to be permitted in advance is that the capacity of the memory card 170 is consumed when the user does not intend. It is.

  Therefore, according to the present invention, the activation of the mode for recording the operation of the software is not limited to the case where the operation is started artificially, but only when the operating software can detect the error state spontaneously. Since it has a mode to start its own operation, it is possible to automatically save a log when a failure that occurs during normal use or an event that can cause a failure occurs. It becomes possible and can be analyzed later.

The bus monitor data written in the memory card 170 is prohibited from being displayed on the display unit when the user operates the cellular phone or other devices. This is to prevent data leakage.
Even if the mobile phone is connected to a personal computer (PC) or the like, the bus monitor data written in the memory card 170 cannot be taken out without a dedicated tool or the like. This is also for preventing data leakage.

For example, as a method for preventing the data from being taken out, an area of the memory card 170 occupied by the bus monitor data is locked.
Furthermore, the bus monitor data is encrypted in case it is taken out to the personal computer. This is also for preventing data leakage.

FIG. 7 is a modification of FIG. 1 and is a block diagram showing a schematic configuration of a mobile phone bus monitor system according to the present invention.
As shown in the figure, the cellular phone is provided with LSI 110A and LSI 110B. For example, LSI 110A has a voice communication function, and LSI 110B has a telephone directory function, a mail function, a WEB browsing function, a schedule management function, a camera function, and a television. John's reception function.

Further, the LSI 110A includes a CPU 111A, a ROM 112A, a RAM 113A, a switching controller 114, a serial I / F 115A, and a bus monitor 140A connected to the memory bus 130A.
The LSI 110B includes a CPU 111B, a ROM 112B, a RAM 113B, a serial I / F 115B, a data transfer unit 116, and a bus monitor 140B connected to the memory bus 130B, and a switch ( SW) 117 is incorporated.

The LSI 110A and LSI 110B have a serial interface (Serial I / F) 115A and a serial interface (Serial I / F) 115B, respectively, and are connected by a Serial I / F 115A and a Serial I / F 115B.
A memory card controller 160 into which the switch 150 is inserted is connected to both the bus monitor 140A and the switch 117 via the switch 150.

The bus monitor 140A monitors the memory bus 130A and outputs bus monitor data A, and the bus monitor 140B monitors the memory bus 130B and outputs bus monitor data B.
The data transfer unit 116 transfers normal data to the switch 117, and controls the connection source of the switch 117 by the switching control signal (s1).

  When the memory card 170 inserted into the memory card controller 160 is a normal memory card, the memory card identification unit 114A of the switching controller 114 uses the memory bus 130A, the serial I / F 115A, the serial I / F 115B, and the memory bus 130B. The switching control signal (s1) is sent to the data transfer unit 116.

In the bus monitor activation mode, it is possible to select from which side of the memory bus 130A or the memory bus 130B of the LSI 110A or LSI 110B to monitor from the screen of the display unit of the mobile phone.
FIG. 8 is a flowchart for explaining a start mode of the bus monitor 140A or the bus monitor 140B of FIG.

As shown in the figure, in step 231, the user turns on the mobile phone.
In step 232, the memory card identification unit 114A of the switching controller 114 determines whether the ID card, which is the memory card 170 inserted into the memory card controller 160, is a dedicated memory card for the bus monitor 140A or the bus monitor 140B. If a normal memory card is inserted in the memory card controller 160, the process proceeds to step 238.

In step 233, the CPU 111A determines whether or not the activation of the bus monitor 140A is set. If not set, the process proceeds to step 235.
In step 234, the switching controller 114 switches the switch 150 to the bus monitor 140A side and activates the bus monitor 140A. In this case, only the bus monitor 140A is activated, and the function as a normal mobile phone can be used without any problem.

In step 235, the CPU 111A determines whether or not the activation of the bus monitor 140B is set. If not, the process proceeds to step 238.
In step 236, the switching controller 114 switches the switch 150 to the switch 117 side, further switches the switch 117 to the bus monitor 140B side, and activates the bus monitor 140B. In this case, only the bus monitor 140B is activated, and the function as a normal mobile phone can be used without any problem.

In step 237, bus monitor data A is written to the bus monitor 140A, and bus monitor data B is written to the bus monitor 140B.
In step 238, a screen dedicated to the bus monitor is activated on the display unit of the mobile phone. The screen dedicated to the bus monitor is expected to start / stop the bus monitor 140A or the bus monitor 140B (log acquisition start / stop), various trigger events, for example, the range of addresses to be acquired, and the relationship between the address and data (date). It is possible to set the time when the value is reached. End the process.

In step 23 9, when the memory card controller 160 is typically an ID card is inserted, the switch controller 114 switches the switch 150 to the switch 117 side, further, switches the switch 117 to the data transfer unit 116 side, usually Start and end processing.
In this way, the present invention can also be applied to a mobile phone including two LSIs having a CPU and a memory. In a mobile phone equipped with two LSIs connected by a serial I / F, analysis can be performed. It becomes possible to monitor the memory bus of the LSI that is useful or likely to be useful.

  As described above, even when a memory card is used to write normal data in a second generation mobile phone or the like, it is possible to write bus monitor data to the memory card 170 separately from the normal data. .

FIG. 9 is a modification of FIG. 7 and is a block diagram showing a schematic configuration of a bus monitor system for a mobile phone according to the present invention.
As shown in this figure, compared to FIG. 7, the bus monitor 140B and the switch 117 are deleted in the LSI 110B, and the data transfer unit 116 is directly connected to the switch 150.
The bus monitor data B obtained by monitoring the memory bus 130B of the LSI 110B is transferred from the serial I / F 115B to the bus monitor 140A via the serial I / F 115A.

That is, the bus monitor 140A monitors not only the memory bus 130A of the LSI 110A but also the memory bus 130B of the LSI 110B from the serial I / F 115B via the serial I / F 115A, and outputs bus monitor data A and bus monitor data B.
In the switch 150, the bus monitor data A and the bus monitor data B from the bus monitor 140A and the normal data from the data transfer unit 116 are alternatively selected and transferred.

By doing so, since it takes time to transfer the bus monitor data B from the serial I / F 115B via the serial I / F 115A, there is an advantage when the monitor of the bus monitor data B is not required in real time.
As described above, even when a memory card is used to write normal data in a second generation mobile phone or the like, it is possible to write bus monitor data to the memory card 170 separately from the normal data. .

  Although the above description has been given with respect to a mobile phone, the present invention can be similarly applied to a PDA (personal digital assistant) and a PHS (simple mobile phone).

It is a block diagram which shows schematic structure of the bus monitor system of the mobile telephone which concerns on this invention. It is a timing chart figure which writes bus monitor data in the memory card 170 which is a UIM card. It is a figure which shows the example of an image of the bus monitor data acquired in FIG. It is a flowchart figure explaining the starting mode of the bus monitor 140 of FIG. FIG. 5 is a flowchart illustrating a start mode of the bus monitor 140, which is a modification of FIG. FIG. 6 is a flowchart illustrating a start mode of the bus monitor 140, which is a modification of FIG. It is a modification of FIG. 1 and is a block diagram showing a schematic configuration of a bus monitor system for a mobile phone according to the present invention. FIG. 8 is a flowchart for explaining a start mode of the bus monitor 140A or the bus monitor 140B of FIG. FIG. 9 is a block diagram showing a schematic configuration of a mobile phone bus monitor system according to the present invention, which is a modification of FIG. 7.

Explanation of symbols

110, 110A, 110B, 120 ... LSI
111, 111A, 111B ... CPU
112, 112A, 112B ... ROM
113, 113A, 113B ... RAM
114 ... Switch control 114A ... Memory card identification unit 115A, 115B ... Serial interface (Serial I / F)
116: Data transfer unit 117, 150 ... Switches 130, 130A, 130B ... Memory bus 140, 140A, 140B ... Bus monitor 160 ... Memory card controller 170 ... Memory card

Claims (20)

In the mobile phone bus monitor system,
A memory card controller for controlling the writing and reading of data to the inserted memory card;
A bus monitor for monitoring access from the CPU on the memory bus to the memory on the memory bus and outputting as bus monitor data;
A switch for selectively selecting normal data during normal use, including bus monitor data from the bus monitor and telephone book data stored by the user, and outputting the selected data to the memory card controller; ,
When the memory card inserted into the memory card controller is identified and the identified memory card is a bus monitor dedicated memory card for writing the bus monitor data from the bus monitor, the bus monitor data from the bus monitor is It controls the switching of the switch to select the switching when the identified memory card is a normal memory card introduced writing the ordinary data to control the switching of the switch to select the normal data controller And a bus monitor system for a mobile phone. The switching controller identifies a memory card inserted into the memory card controller when the cellular phone is turned on, and when the inserted memory card is a memory card dedicated to a bus monitor, the switch is connected to the bus 2. The bus monitor system for a mobile phone according to claim 1, wherein switching to select bus monitor data from a monitor is permitted, and activation of the bus monitor is permitted. In the mobile phone bus monitor system,
A memory card controller for controlling the writing and reading of data to the inserted memory card;
A first bus monitor built in the first LSI, which monitors access from the first CPU on the first memory bus to the first memory on the memory bus and outputs the first bus monitor data; ,
A second bus monitor built in the second LSI, which monitors access from the second CPU on the second memory bus to the second memory on the memory bus and outputs the second bus monitor data; ,
A switching controller built in the first LSI and on a first memory bus;
A data transfer unit built in the second LSI, on the second memory bus, for transferring normal data during normal use including telephone book data stored by the user;
A first switch built in the second LSI, which selectively selects second bus monitor data from the second bus monitor and normal data from the data transfer unit;
A first serial interface built in the first LSI and on a first memory bus;
A second serial interface embedded in the second LSI, on a second memory bus, and connected to the first serial interface;
A second switch for selectively selecting the first bus monitor data from the first bus monitor and the output from the first switch, and outputting the selected data to the memory card controller for writing. With
The switching controller identifies a memory card inserted into the memory card controller when the mobile phone is turned on, and determines a startup setting of the first bus monitor or the second bus monitor; a first bus monitor or second bus monitor private memory card to write bus monitor data from the bus monitor further, when the first bus monitor start is set first bus monitor first it controls the switching of the second switch to select the bus monitor data from; an identification memory over card memory card of the bus monitor only, further, the second bus monitor start setting If so, switch the second switch to select data from the first switch. In addition, a switching control signal is sent to the data transfer unit via the first memory bus, the first serial interface, the second serial interface, and the second memory bus, and a second control signal is sent to the data transfer unit. Controlling the switching of the first switch to select second bus monitor data from the second bus monitor; and if the identified memory card is a normal memory card for writing the normal data The switching of the second switch is controlled so as to select data from the first switch, and further via the first memory bus, the first serial interface, the second serial interface, and the second memory bus. A switching control signal is sent to the data transfer unit, and the data transfer unit is connected to the data transfer unit. Bus monitoring system of the mobile telephone, characterized in that to the normal control switching of said first switch so as to select the data. In the mobile phone bus monitor system,
A memory card controller for controlling the writing and reading of data to the inserted memory card;
A first serial interface embedded in the first LSI and on a first memory bus for accessing the first memory from the first CPU;
A second serial interface built in the second LSI, on a second memory bus for accessing a second memory from a second CPU, and connected to the first serial interface;
The access from the first CPU on the first memory bus to the first memory is monitored on the first memory bus, and the second serial interface, first through the serial interface, and outputs the access from the second LSI of the second second CPU on the memory bus to the second memory as monitored bus monitor data on the first memory over bus A bus monitor,
A switching controller built in the first LSI and on a first memory bus;
A data transfer unit built in the second LSI, on the second memory bus, for transferring normal data during normal use including telephone book data stored by the user;
A switch for selectively selecting the bus monitor data from the bus monitor and the normal data from the data transfer unit, and outputting the selected data to the memory card controller;
The switching controller identifies a memory card inserted into said memory card controller at ON the power supply of the mobile phone; in identified memory card bus monitor private memory card to write bus monitor data from the bus monitor In some cases, the switching of the switch is controlled so as to select the bus monitor data from the bus monitor. If the identified memory card is a normal memory card for writing the normal data, the data transfer unit A bus monitor system for a mobile phone, wherein switching of the switch is controlled so as to select the normal data. 5. The bus monitor system for a mobile phone according to claim 1, wherein the memory card dedicated to the bus monitor is a UIM card. In the mobile phone bus monitor system,
A memory card controller for controlling the writing and reading of data to the inserted memory card;
A bus monitor for monitoring access from the CPU on the memory bus to the memory on the memory bus and outputting as bus monitor data;
A switch for selectively selecting normal data during normal use, including bus monitor data from the bus monitor and telephone book data stored by the user, and outputting the selected data to the memory card controller; ,
When a plurality of predetermined keys among the operation keys of the mobile phone are pressed, the memory card inserted into the memory card controller is checked for a dedicated bus monitor code, and the confirmed memory card If there is a code dedicated to the bus monitor, the bus monitor data from the bus monitor is selected and the switching of the switch is controlled so that the data is written to the memory card. A bus monitor system for a cellular phone, comprising: a switching controller that controls switching of the switch so that the normal data is selected and written to the memory card when no code is present. The switching controller identifies a memory card inserted into the memory card controller when the mobile phone is turned on. If the memory monitor has a dedicated code for the bus monitor, the switch controller The bus monitor system for a mobile phone according to claim 6, wherein the bus monitor data is switched to be selected from the bus monitor and the start of the bus monitor is permitted. The switching controller switches the switch so as to select the normal data, determines whether permission is set, sets permission, and when an error state of the operating software is spontaneously detected. 7. The mobile phone bus monitor system according to claim 6, wherein the bus monitor is activated by switching the switch to the bus monitor side. The bus monitor includes a CPU, a first memory built in the first LSI, and a second memory built in the second LSI, when the first memory by the CPU is connected to the same memory bus, 7. The mobile phone bus monitor system according to claim 1, wherein access to the second memory is monitored and bus monitor data is output. In the mobile phone bus monitor system,
A memory card controller for controlling the writing and reading of data to the inserted memory card;
A first bus monitor built in the first LSI, which monitors access from the first CPU on the first memory bus to the first memory on the memory bus and outputs the first bus monitor data; ,
A second bus monitor built in the second LSI, which monitors access from the second CPU on the second memory bus to the second memory on the memory bus and outputs the second bus monitor data; ,
A switching controller built in the first LSI and on a first memory bus;
A data transfer unit built in the second LSI, on the second memory bus, for transferring normal data during normal use including telephone book data stored by the user;
A first switch built in the second LSI, which selectively selects second bus monitor data from the second bus monitor and normal data from the data transfer unit;
A first serial interface built in the first LSI and on a first memory bus;
A second serial interface embedded in the second LSI, on a second memory bus, and connected to the first serial interface;
A second switch for selectively selecting the first bus monitor data from the first bus monitor and the output from the first switch, and outputting the selected data to the memory card controller for writing. With
The switching controller includes a bus monitor dedicated code for a memory card inserted into the memory card controller when a plurality of predetermined keys among the operation keys of the cellular phone are pressed when the cellular phone is turned on. Is present, the activation setting of the first bus monitor or the second bus monitor is determined; a code dedicated to the bus monitor exists in the confirmed memory card, and further, the first bus monitor activation is If set, it controls the switching of the second switch to select the first bus monitor data from the first bus monitor; there is a code dedicated to the bus monitor on the identified memory card, Further, when the second bus monitor activation is set, the data from the first switch is selected to be selected. The switching of the switches is controlled, and further, a switching control signal is transmitted to the data transfer unit via the first memory bus, the first serial interface, the second serial interface, and the second memory bus, and the data transfer Control the switching of the first switch so as to select the second bus monitor data from the second bus monitor; and when the bus monitor dedicated code does not exist in the confirmed memory card Controls the switching of the second switch so as to select data from the first switch, and further through the first memory bus, the first serial interface, the second serial interface, and the second memory bus. Sending a switching control signal to the data transfer unit and sending the data transfer unit to the data transfer unit Bus monitoring system of the mobile telephone, characterized in that to control the switching of the first switch to select the normal data al. In the mobile phone bus monitor system,
A memory card controller for controlling the writing and reading of data to the inserted memory card;
A first serial interface embedded in the first LSI and on a first memory bus for accessing the first memory from the first CPU;
A second serial interface built in the second LSI, on a second memory bus for accessing a second memory from a second CPU, and connected to the first serial interface;
The access from the first CPU on the first memory bus to the first memory is monitored on the first memory bus, and the second serial interface, first through the serial interface, and outputs the access from the second LSI of the second second CPU on the memory bus to the second memory as monitored bus monitor data on the first memory over bus A bus monitor,
A switching controller built in the first LSI and on a first memory bus;
A data transfer unit built in the second LSI, on the second memory bus, for transferring normal data during normal use including telephone book data stored by the user;
A switch for selectively selecting the bus monitor data from the bus monitor and the normal data from the data transfer unit, and outputting the selected data to the memory card controller;
The switching controller includes a bus monitor dedicated code for a memory card inserted into the memory card controller when a plurality of predetermined keys among the operation keys of the cellular phone are pressed when the cellular phone is turned on. If there is a dedicated bus monitor code on the confirmed memory card, control the switch to select the bus monitor data from the bus monitor, and check the memory A bus monitor system for a cellular phone, wherein the switch is controlled so as to select the normal data from the data transfer unit when a code dedicated to the bus monitor does not exist in the card. The screen dedicated to the bus monitor displayed on the mobile phone displays start / stop of the bus monitor, a range of addresses to be acquired, and a relationship between an address and data (date). The cellular phone bus monitor system according to any one of claims 3, 4, 6, 10, and 11. The bus monitor data written in the memory card is prohibited from being displayed on a display unit from the operation of the mobile phone. The bus monitor system for a mobile phone according to any one of claims 10 and 11. The memory card area in which the bus monitor data is written is locked, and the memory card is prohibited from being taken out from the mobile phone to a personal computer. The bus monitor system for a mobile phone according to any one of claims 6, 10, and 11. 12. The bus monitor data written in the memory card is encrypted, and any one of claims 1, 3, 4, 6, 10, and 11 A bus monitor system for a mobile phone as described in the paragraph. The bus monitor data accumulated in the memory card is transmitted to a telecommunications carrier of the cellular phone via an Internet line, wherein the data is transmitted to the mobile phone carrier. The bus monitor system for a mobile phone according to any one of claims 10 and 11. The said memory card controller writes the bus monitor data of an ASCII format or a binary format to the said memory card, The claim 1, 3, 4, 6, 10, and 11 characterized by the above-mentioned. A bus monitor system for a mobile phone according to claim 1. The bus monitor receives a clock signal, a write signal, a read signal, and a chip select signal from the CPU, latches a time stamp with the write signal and the read signal, and each time stamp latches the time, address on the memory bus, data The read / write type is monitored and written as the bus monitor data on a memory card dedicated to the bus monitor inserted into the memory card controller. The bus monitor system for a mobile phone according to any one of claims 6, 10, and 11. In the bus monitoring method for mobile phones,
Whether the memory card inserted into the memory card controller is a memory card dedicated to the bus monitor for writing the bus monitor data or a normal memory card for writing normal data during normal use including telephone book data stored by the user. Identifying with a code;
Monitoring the access from the CPU on the memory bus to the memory after identification on the memory bus and outputting as bus monitor data;
If the identified memory card is a memory card dedicated to the bus monitor, writing the bus monitor data to the memory card dedicated to the bus monitor;
And a step of writing the normal data to the normal memory card when the identified memory card is the normal memory card. In the bus monitoring method for mobile phones,
Determining that a plurality of designated keys among the operation keys of the mobile phone are pressed;
A step of checking whether a code dedicated to the bus monitor exists in the memory card inserted into the memory card controller after pressing the key;
Monitoring the memory access from the CPU on the memory bus after confirmation on the memory bus and outputting as bus monitor data;
A step of writing the bus monitor data to the memory card when a code dedicated to the bus monitor exists in the confirmed memory card;
And a step of writing normal data during normal use including phone book data stored by the user in the memory card when the bus monitor dedicated code does not exist in the confirmed memory card. Bus monitor method.

Images