JPH11345190A - Information transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information transfer device for effectively utilizing the resources of a setting information transfer system and a notice information transfer system. SOLUTION: The area of a memory part 35 is divided into a large-capacity memory section 37 and a small-capacity memory section 38 by a memory control part 39 and is respectively transferred to a large-capacity transfer section 40 and a small-capacity transfer section 41. Concerning the transfer of setting information and notice information between a central processing part 30 and a lower-order block 31, either one of transfer systems is selected by a transfer control part 44. At system start up, large- capacity transfer is performed for the setting information and small-capacity transfer is performed for the notice information. At normal task processing, small-capacity transfer is performed for the setting information, and large-capacity transfer is performed for the notice information. At the system start up, a setting processing part 45 makes access to the large-capacity memory part 37 and a notice processing part 46 makes access to the small capacity memory part 38. At normal task processing, the setting processing part 45 makes access to the small-capacity memory part 38 and the notice processing part 46 makes access to the large-capacity memory part 37.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information transfer apparatus, and more particularly, to an information transfer apparatus that performs a transfer process according to information to be transferred to another functional block.

[0002]

2. Description of the Related Art Conventionally, as an information processing system for performing information processing becomes multifunctional, the information processing system may be constituted by a plurality of blocks in units of blocks realizing individual functions. In such an information processing system, various information necessary for each task process needs to be transmitted and received between the functional blocks at the time of system startup or after startup, and before, during or after each task execution process. is there. The information transmitted and received between the functional blocks is roughly divided into setting information for various settings and notification information for various notifications. A device that transfers the setting information and the notification information between the functional blocks is called an information transfer device.

FIG. 5 shows an outline of a configuration of a conventionally proposed information transfer apparatus. The information transfer device includes a central processing unit 10 that performs setting processing and notification processing using setting information or notification information, and a central processing unit 10
And a lower block 11 for transferring the setting information and the notification information to and from the lower block 11. The central processing unit 10 and the lower block 11 are connected by a setting information transfer bus 12 and a notification information transfer bus 13. Setting information transfer bus 1
Reference numeral 2 denotes a bus for transferring setting information necessary for processing of a system start-up task or other various tasks between the lower block 11 and the central processing unit 10. The notification information transfer bus 13 is a bus for transferring notification information required during task execution processing between the lower block 11 and the central processing unit 10.

[0004] The central processing unit 10 includes a processor 14 for executing various tasks at the time of system startup or normal processing. The central processing unit 10 further includes a lower block 11
And a notification information memory 16 for storing various types of notification information to be transferred to and from the lower block 11 as well. The setting information memory 15 and the notification information memory 16
Each is connected to the processor 14 by the internal bus 17. The setting information transfer unit 18 is provided in the setting information memory 15.
Are connected to the lower block 11 and the central processing unit 10
The side controls the transfer of the setting information performed between the lower block 11 and the setting information memory 15. Notification information transfer unit 19
Is connected to the notification information memory 16 and the lower block 11, and controls the transfer of the notification information performed between the lower block 11 and the notification information memory 16 on the central processing unit 10 side.

The lower block 11 is a division unit in which the information processing system is divided for each function.
A predetermined function is realized on the basis of various setting information. The notification information collecting unit 21 performs a process of collecting information to be notified to another functional block such as the central processing unit 10 during the task processing for the lower block 11 to realize a predetermined function. The setting information transfer circuit 22 includes a setting information transfer unit 18
Is connected to the information setting unit 20 and the lower block 11
The side controls transfer of setting information performed between the information setting unit 20 and the setting information transfer unit 18. Notification information transfer circuit 21
Is connected to the notification information transfer unit 19 and the notification information collection unit 21, and controls transfer of notification information performed between the notification information collection unit 21 and the notification information transfer unit 19 on the lower block side.

The processor 14 of the central processing unit 10 includes a setting processing unit 24 for executing processing using various setting information and a notification processing unit 25 for executing processing using various notification information, which are not shown. Various controls are executed based on a program stored in a predetermined storage device such as an external storage device such as a magnetic disk or a read only memory (hereinafter abbreviated as ROM) provided separately from the external storage device. It has become.

The central processing unit 10 exchanges setting information and notification information with a plurality of lower blocks, and performs various processes according to a program stored in a predetermined storage device such as a ROM (not shown). That is, the notification information generated in each lower block of the function unit is transmitted to the notification information collection unit 2.
1 and causes the notification information transfer circuit 23 to transfer the notification information to the notification information transfer unit 19 via the notification information transfer bus 13. The notification information transfer unit 19 is controlled in the interrupt processing of the processor 14, and further stores the notification information transferred from the lower block 11 in the notification information memory 16. The notification processing unit 25 of the central processing unit 10 as the upper block performs predetermined processing by using the notification information transferred to the notification information memory 16 as the notification information from the lower block 11.

On the other hand, the central processing unit 1 as an upper block
The information to be set for the lower block 11 generated as a result of the processing performed by the 0 notification processing unit 25 is stored in the setting information memory 25 by the setting processing unit 24. The setting information stored in the setting information memory 15 is transmitted to the setting information transfer unit 18.
The lower block 11 via the setting information transfer bus 12
Forwarded to. At this time, the setting information transfer unit 18 that transfers the setting information from the setting information memory 15 to the lower block 11 is controlled during the interrupt processing of the processor 14. The lower block 11 causes the setting information transfer circuit 22 to transfer the setting information transferred via the setting information transfer bus 12 to the information setting unit 20. The information setting unit 20 sets the setting information transferred from the central processing unit 10 as an upper block. Thus, the function controlled by the central processing unit 10 is performed by the lower block 11.

In addition, regarding such information transfer between the upper block and the lower block, the processor of the upper block activates the transfer of parameter and command information to the lower block, and the processor notifies the completion of the transfer. A technique in which other processing is performed during this period is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 1-102666, "Information Transfer Control Circuit".

[0010]

In such a conventional information transfer apparatus, as parameters for determining the transfer performance of the notification information transfer system and the setting information transfer system, the buses of the setting information transfer bus and the notification information transfer bus are used. Width, transfer clock, setting information memory 15 and notification information memory 1
There are 6 memory capacities. These are preset so that an optimum performance is obtained at the time of the maximum transfer during the operation of the system. That is, when paying attention to the setting information transfer system, the setting information transfer bus width, the transfer clock, and the setting information memory capacity are determined so as to exhibit the optimum transfer speed when starting up a system having a large transfer amount. On the other hand, when paying attention to the notification information transfer system, the notification information transfer bus width, the transfer clock, and the notification information memory capacity are determined so as to exhibit the optimum transfer speed during normal processing with a large transfer amount.

As described above, the notification information system is not effectively used at the time of system startup, and the setting information system is not effectively used at the time of normal processing after system startup. There was a problem that was bad.

Similarly, in the technique disclosed in Japanese Patent Application Laid-Open Publication No. HEI 1-2102666, the efficiency of using the resources of the information transfer apparatus also deteriorates depending on the operation status.

It is an object of the present invention to provide an information transfer apparatus which makes effective use of the resources of a setting information transfer system and a notification information transfer system based on the operation status of the system.

[0014]

According to the first aspect of the present invention, (a) a first transfer means for transferring information at a first transfer speed, and (b) a first transfer means of the first transfer means. Second transfer means for transferring information at a second transfer rate lower than the transfer rate; (c) first information generating means for generating first information; and (d) first information generating means. (E) second information generating means for generating second information, and (f) second information generating means for performing predetermined processing using the first information generated by the second information. A second information processing unit for performing a predetermined process using the second information generated by the generation unit; and (g) a first information processing unit that generates a large amount of the first information.
The first information generated by the information generating means is transferred to the first information processing means by the first transfer means, and the second information generated by the second information generating means is transferred to the second information. First transfer selecting means for causing the processing means to transfer the data by the second transfer means; and (h) when the number of generated second information is large, the first information generated by the first information generating means is The second information is transferred to the first information processing means by the second transfer means, and the second information generated by the second information generation means is transferred to the second information processing means by the first transfer means. The information transfer device is provided with a second transfer selecting means.

That is, according to the first aspect of the present invention, the first transfer means for transferring information at the first transfer rate and the first transfer means
And a second transfer means for transferring information at a second transfer speed lower than the transfer speed of the second transfer device. On the basis of the numbers of generated first and second information generated by the first and second information generating means, the one having the larger number of generated information is switched to the transfer system having a higher transfer speed. When the number of generated first information is large, the first information is transferred to the first information processing unit that performs information processing using the first information by the first transfer unit having the high first transfer speed. Then, the second information is transferred by the second transfer unit having the lower second transfer speed to the second transfer unit that performs information processing using the second information. When the number of pieces of second information generated is large, the first information is transferred to the first information processing means by the low-speed second transfer means, and the second information is transferred by the high-speed first transfer means. Transfer to the second information processing means.

According to the second aspect of the present invention, (a) storage capacity dividing means for dividing a predetermined storage capacity into a first storage capacity and a second storage capacity, and (b) first information is generated. (D) information generating means, (c) first transfer means for transferring the first information generated by the first information generating means,
A first storage unit that has a first storage capacity divided by the storage capacity division unit and stores the first information transferred by the first transfer unit; and (e) the first storage unit First information processing means for performing predetermined information processing using the stored first information, and (f) generating second information based on a result processed by the first information processing means. A second information generating means, and (g) a second storage which has a second storage capacity divided by the storage capacity dividing means, and stores the second information generated by the second information generating means. Means, (h) second transfer means for transferring the second information stored by the second storage means, and (iii) receiving the second information transferred by the second transfer means. Information receiving means, and (nu) the first and second information And by and a storage capacitance division changing means for changing the first and second storage capacitance division ratio by the storage capacity dividing means based on the formation conditions in the information transfer device.

That is, according to the present invention, there is provided a storage capacity dividing means for dividing a predetermined storage capacity into a first storage capacity and a second storage capacity. The ratio can be changed. The first information generated by the first information generation unit is transferred to the first storage unit having the first storage capacity by the first transfer unit. The first information processing means accesses the first storage means and performs predetermined information processing. On the other hand, the second information generated by the second information generation means is transferred to the second storage means having the second storage capacity, and then transferred to the second information reception means by the second transfer means. Is done. Then, for example, when information is transferred between a plurality of devices and a predetermined process is performed, the storage capacity dividing / changing means is used by the storage capacity dividing / changing means based on the generation status of the first and second information. I try to change the ratio.

According to the third aspect of the present invention, (a) a storage capacity dividing means for dividing a predetermined storage capacity into a first storage capacity and a second storage capacity, and (b) the storage capacity dividing means. A first storage unit having a divided first storage capacity, (c) a second storage unit having a second storage capacity divided by the storage capacity dividing unit, and (d) generating first information. (E) first transfer means for transferring the first information generated by the first information generation means to the first storage means at a first transfer speed;
(F) first information processing means for performing predetermined processing using the first information transferred by the first transfer means and stored in the first storage means; and (g) second information. And a second information generating means for storing the generated second information in the second storage means, and (h) stored by the second information generating means and stored in the second storage means. A second transfer unit for transferring the second information at a second transfer rate, and (ii) a second unit for performing a predetermined process using the second information transferred by the second transfer unit. And (1) changing the first and second storage capacity division ratios by the storage capacity dividing means based on the generation status of the first and second information, and the first and second transfer rates. The information transfer apparatus is provided with a transfer rate changing means for changing the ratio.

That is, according to the third aspect of the present invention, there is provided a storage capacity dividing means for dividing a predetermined storage capacity into a first storage capacity and a second storage capacity. Can be changed. Furthermore, a first transfer unit having a first transfer speed and a second transfer unit having a second transfer speed are provided, and the transfer speed changing unit can change the first and second transfer speed ratios. I have to. The first information generated by the first information generation unit is transferred to the first storage unit having the first storage capacity by the first transfer unit. The first information processing means accesses the first storage means and performs predetermined information processing. On the other hand, after the second information generated by the second information generating means is transferred to the second storage means having the second storage capacity,
The data is transferred to the second information processing means by the second transfer means. For example, when information is transferred between a plurality of devices and a predetermined process is performed, the transfer rate changing unit determines the storage capacity division ratio based on the generation status of the first and second information. And the transfer speed ratio is changed.

According to a fourth aspect of the present invention, in the information transfer device according to the third aspect, the first information is notification information, the second information is setting information, and the transfer rate changing means is used when the system is started up. The first storage capacity is changed to be larger than the second storage capacity, and the first transfer speed is changed to be higher than the second transfer speed. During normal processing, the first storage capacity is changed to the second storage capacity. It is characterized in that it is smaller and the first transfer speed is changed to be lower than the second transfer speed.

That is, according to the fourth aspect of the present invention, when the system is started up, in which the generation of setting information is large, the setting information is transferred by the first transfer means having a high transfer speed, and the notification information having a small number of generations is transferred to the low-speed The transfer is performed by the second transfer means. In addition, during normal processing in which notification information is frequently generated, setting information is transferred by a first transfer unit having a low transfer speed, and notification information with a large number of generations is transferred by a high-speed second transfer unit. I have.

According to a fifth aspect of the present invention, in the information transfer apparatus of the fourth aspect, the transfer rate changing means changes the first and second transfer rates by changing a transfer clock frequency and a transfer bus width. It is characterized by:

That is, in the fifth aspect of the present invention, the transfer speed is changed according to the transfer clock frequency and the transfer bus width.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments.

FIG. 1 shows an outline of the configuration of an information transfer apparatus according to an embodiment of the present invention. However, the same parts as those of the conventional information transfer apparatus shown in FIG. This information transfer device includes a central processing unit 30 that performs setting processing and notification processing using setting information or notification information, and a lower block that transfers setting information and notification information between the central processing unit 30 as an upper block. 31. The central processing unit 30 and the lower block 31 are connected by a large-capacity transfer bus 32 and a small-capacity transfer bus 31. The large capacity transfer bus 32 and the small capacity transfer bus 33 are buses for transferring information exchanged between the lower block 31 and the central processing unit 30, respectively. The difference between the large-capacity transfer bus 32 and the small-capacity transfer bus 33 is that the large-capacity transfer bus 32 has a higher transfer speed than the small-capacity transfer bus 33.

The central processing unit 30 includes a processor 34 for executing various tasks, and a memory unit 35 for storing various setting information and various notification information to be transferred between the lower blocks 31. The memory unit 35 is connected to the processor 34 by an internal bus 36. The memory area of the memory section 35 is divided into a large-capacity memory section 37 and a small-capacity memory 38.
Allows the memory area and arrangement to be changed. For example, the memory control unit 39 can change the upper and lower decoding methods of the address bus referred to at the time of memory access, thereby changing the boundaries of these areas and changing the bit width of the input / output data bus. Can also be changed.

Further, the central processing unit 30 includes the large-capacity transfer unit 4
0 and a small-capacity transfer unit 41. The large-capacity transfer unit 40 is connected to the large-capacity memory unit 37 and the lower block 31, and controls the transfer of large-capacity information performed between the lower block 31 and the large-capacity memory unit 37 on the central processing unit 30 side. I do. The small-capacity transfer unit 41 is connected to the small-capacity memory unit 38 and the lower block 31, and controls the transfer of the small-capacity information performed between the lower block 31 and the small-capacity memory unit 38 on the central processing unit 30 side. I do.

The lower block 31 is a division unit in which the information processing system is divided for each function.
A predetermined function is realized on the basis of various setting states.
The notification information collecting unit 21 performs a process of collecting information to be notified to another functional block such as the central processing unit 10 during the task processing for the lower block 11 to realize a predetermined function. Further, the lower block 31 includes a large-capacity transfer circuit 42 connected to the large-capacity transfer bus 32, a small-capacity transfer circuit 43 connected to the small-capacity transfer bus 33, and a transfer control unit for setting these transfer circuits. 44. The large-capacity transfer circuit 42 is connected to the large-capacity transfer unit 40 and the transfer control unit 44, and controls the large-capacity transfer performed between the low-order block 31 and the central processing unit 30. The small-capacity transfer circuit 43 is connected to the small-capacity transfer unit 41 and the transfer control unit 44, and controls the small-capacity transfer performed between the low-order block 31 and the central processing unit 30.

The processor 34 of the central processing unit 30 includes a setting processing unit 45 for executing processing using various setting information and a notification processing unit 46 for executing processing using various notification information, and is not shown. Various controls are executed based on a program stored in an external storage device such as a magnetic disk or a predetermined storage device such as a ROM provided separately therefrom.

The central processing unit 30 exchanges setting information and notification information with a plurality of lower blocks through various processes based on a program stored in a predetermined storage device such as a ROM (not shown). The large-capacity memory unit 37 and the small-capacity memory unit 38 of the memory unit 35 accessed by the processor 34 store setting information in one of them and notification information in the other based on the operation status. The transfer control unit 44 selectively connects the large-capacity transfer circuit 42 to either the information setting unit 20 or the notification information collecting unit 21 to determine whether the setting information or the notification information is stored in each memory area. Depends on

The notification processing unit 46 of the processor 34 accesses the large-capacity memory unit 37 or the small-capacity memory unit 38 of the memory unit 35 as the notification information transferred from the lower block 31 based on the operation status. Also,
The setting processing unit 45 of the processor 35
As the setting information to be transferred to the large-capacity memory unit 37 or the small-capacity memory unit 3 of the memory unit 35 based on the operation status,
8, access is made to a memory area that the notification processing unit 46 does not access at that time.

By the way, when the system is started, the number of setting information generated and transferred is larger than the number transferred after generating the notification information. At the time of normal task processing after system startup, on the contrary, the number of setting information generated and transferred is smaller than the number transferred after generation of notification information. Therefore, when the setting information is large and the notification information is small, such as when the system is started, the setting processing unit 45 accesses the large-capacity memory unit 37 and the notification processing unit 46 accesses the small-capacity memory unit 38. By doing so, the respective transfer speeds are utilized to the maximum in operating conditions such as when the system is started. When the notification information is large and the setting information is small as in the normal task processing, the setting processing unit 45 accesses the small capacity memory unit 38 and the notification processing unit 46 accesses the large capacity memory unit 37. By doing so, the respective transfer speeds are maximized in an operating situation such as during normal task processing.

FIG. 2 shows an outline of the processing of the information transfer apparatus for performing such control. This processing procedure is broadly divided into a system startup task processing 50 and a subsequent normal task processing 51. That is, immediately after system startup, normal startup task processing is performed. In this task processing, first, the memory area and arrangement of the large-capacity memory section 37 and the small-capacity memory section 38 are transmitted to the memory control section 39. The transfer bus width and the memory capacity are set in advance so that the optimum setting information transfer speed is exhibited immediately after the system is started. At the same time, the large-capacity transfer circuit 42 and the information setting
Is selectively connected to the small-capacity transfer circuit 43 and the notification information collecting unit 21 (step S52).

Immediately after system startup, the central processing unit 30
Performs a large capacity transfer of the setting information to the lower block 31 (step S53). The information setting unit 20 of the lower block 31 sets the transferred setting information and performs other predetermined startup task processing (step S5).
4). Also, during the start-up task processing, large-volume transfer of setting information and small-capacity transfer of notification information are performed. After the startup task processing, the memory control unit 39 invalidates the storage information of each of the large-capacity memory unit 37 and the small-capacity memory unit 38, and then changes the memory area and arrangement again. The transfer bus width and the memory capacity are set so as to exhibit the optimum setting information transfer speed during the normal task processing. At the same time, the transfer control unit 44 is selectively connected to the large-capacity transfer circuit 42 and the notification information processing unit 21 and to the small-capacity transfer circuit 43 and the information setting unit 20 (step S55).

When the system startup task process 50 is completed, a normal task process 51 is performed. Step S5
In No. 5, since the transfer speed of the notification information is already set to be the maximum, the notification information is transferred in a large capacity using the large-capacity transfer bus, and the small-capacity transfer is performed even when the transfer of the setting information occurs. Small-capacity transfer using a bus is performed (step S56). Thereafter, a predetermined normal task process is performed (step S57). In addition, during this normal task processing, large-capacity transfer of notification information and small-capacity transfer of setting information are performed. Then, when the system is shut down (step S58: Y), a series of processing ends. On the other hand, as long as the system is not shut down (step S58: N), the large-capacity transfer circuit 42
And the notification information processing unit 21 is caused to perform the large-capacity transfer of the notification information and the small-capacity transfer of the setting information while the small-capacity transfer circuit 43 and the information setting unit 20 are selectively connected.

Next, referring to FIGS. 3 and 4, a description will be given of the transfer path at the time of system startup and at the time of normal processing.

FIG. 3 shows a transfer path when the information transfer apparatus shown in FIG. 1 is started up. When the system is started up as in step S52 in FIG. 2, the information transfer device according to the present embodiment sends the large-capacity memory unit 37 and the small-capacity memory unit 38 to the memory control unit 39.
The transfer bus width and the memory capacity are set in advance so as to exhibit the optimum setting information transfer speed immediately after the system is started up. At the same time, the transfer control unit 44 is selectively connected to the large-capacity transfer circuit 42 and the information setting unit 20, and to the small-capacity transfer circuit 43 and the notification information collection unit 21, respectively.

That is, the setting processing unit 45 of the processor 34 stores the setting information in the large-capacity memory unit 37 as indicated by a transfer path 60 indicated by a broken line. Then, the information stored in the large-capacity memory unit 37 is transferred by the large-capacity transfer unit 40 to the large-capacity transfer circuit 42 via the large-capacity transfer bus 32, and as a result, the setting information is transferred to the information setting unit 20. At this time, the setting information is transferred from the large-capacity memory unit 37 to the lower block 3.
The large-capacity transfer unit 40 for transferring to 1 is controlled during interrupt processing of the processor 34. Further, as indicated by a transfer path 61 indicated by a broken line, the notification information collecting unit 21
4, the notification information is transferred to the small-capacity transfer unit 41 via the small-capacity transfer bus 33 and the small-capacity memory unit 38 of the memory unit 35.
Is stored in The notification processing unit 46 of the processor 34 accesses the small capacity memory unit 38 to obtain notification information. At this time, the small-capacity transfer unit 41 is controlled in the interrupt processing of the processor 34, and stores the notification information transferred from the lower block 31 in the small-capacity memory unit 38.

FIG. 4 shows a transfer path during normal processing of the information transfer apparatus shown in FIG. The information transfer device according to the present embodiment invalidates the storage information of each of the large-capacity memory unit 37 and the small-capacity memory unit 38 with respect to the memory control unit 39 as set in step S55 of FIG. The area and the arrangement are changed, and the transfer bus width and the memory capacity are set in advance so as to exhibit the optimum setting information transfer speed at the time of normal task processing after system startup. At the same time, the transfer control unit 44
The large-capacity transfer circuit 42 and the notification information processing unit 21 are selectively connected, and the small-capacity transfer circuit 43 and the information setting unit 20 are selectively connected.

That is, the setting processing unit 45 of the processor 34 stores the setting information in the large-capacity memory unit 37 as indicated by a transfer path 62 indicated by a broken line. Then, the information stored in the small-capacity memory unit 38 is transferred by the small-capacity transfer unit 41 to the small-capacity transfer circuit 43 via the small-capacity transfer bus 33, and as a result, the setting information is transferred to the information setting unit 20. further,
As indicated by a transfer path 63 indicated by a broken line, the notification information collection unit 21
Is connected to the large-capacity transfer circuit 42 by the transfer control unit 44, so that the notification information is transferred to the large-capacity transfer unit 40 via the large-capacity transfer bus 32 and stored in the large-capacity memory unit 37 of the memory unit 35. Is done. The notification processing unit 46 of the processor 34 accesses the small capacity memory unit 38 to obtain notification information.

As described above, the information transfer apparatus according to the present embodiment divides the predetermined memory space of the memory section 35 into the memory control section 3.
9, the area is divided into a large-capacity memory section 37 and a small-capacity memory section 38, the capacity is made variable, and the memory arrangement can be changed. The memory area storage information divided in this way can exhibit the maximum performance by the large-capacity transfer unit 40 and the small-capacity transfer unit 41, respectively. Therefore, the transfer control unit 44 can select which transfer system is used to transfer the setting information and the notification information between the central processing unit 30 as the upper block and the lower block 31. When the system is started, the transfer amount of the setting information is large and the transfer amount of the notification information is small, so that the transfer of the setting information is performed by the large-capacity transfer, and the transfer of the notification information is performed by the small-capacity transfer. In addition, during normal task processing after system startup, the transfer amount of setting information is small and the transfer amount of notification information is large,
The transfer of the setting information is performed by the small-capacity transfer, and the transfer of the notification information is performed by the large-capacity transfer. Therefore, when the system is started, the setting processing unit 45 sets the large-capacity memory unit 37 and the notification processing unit 46 sets the small-capacity memory unit 3
8 are accessed respectively. On the other hand, during normal task processing, the setting processing unit 45 accesses the small-capacity memory unit 38, and the notification processing unit 46 accesses the large-capacity memory unit 37.
As described above, by selecting the optimal transfer system based on the operation state of the system, it is possible to efficiently use the resources of the transfer system. Further, it is not necessary to prepare a maximum storage capacity required during operation of the system as a buffering memory for information to be transferred as in the related art.

In this embodiment, the transfer speeds of the large-capacity transfer and the small-capacity transfer are not particularly limited, but the respective transfer speeds are easily changed according to, for example, the transfer bus width and the transfer clock frequency. It is possible.

In the present embodiment, the large-capacity memory unit 37 and the small-capacity memory unit 38 are configured so that one memory space can be divided and changed. It is also possible to perform small-capacity transfer.

Further, in this embodiment, the transfer system of the setting information and the notification information is changed based on the system start-up and other normal task processing.
It is not limited to this. Depending on the application to be applied, large-capacity transfer and small-capacity transfer may be selectively switched based on an appropriately selected situation so as to obtain optimum transfer performance.

[0046]

As described above, according to the first aspect of the present invention, the number of pieces of information to be transferred is focused on, and the high-speed transfer of information having a large number of pieces is appropriately performed based on the state of generation. By making the transfer system use a low-speed transfer system to transfer a small amount of information, the transfer capability of the device can be maximized,
The resources of the transfer system can be used effectively.

According to the second aspect of the present invention, the storage capacity is divided for low-speed transfer and high-speed transfer, and the division ratio is changed based on the state of generation of information to be transferred. The transfer capacity can be appropriately exhibited, and the storage capacity of the memory can be saved.

According to the third aspect of the present invention, it is possible to effectively utilize resources in the transfer system of the apparatus by changing the dividing ratio of the storage capacity for the low-speed transfer and the high-speed transfer and changing the speed ratio. At the same time, it is possible to control the transfer performance of the device so as to exhibit the maximum performance.

Further, according to the invention of claim 4, the transfer capability can be improved even at the time of starting up the system where the generation of the setting information is large and at the time of the normal processing where the generation of the notification information is large thereafter. In addition, the resources of the device can be saved.

Further, according to the fifth aspect of the present invention, the effective use of the resources of the apparatus can be realized with a very simple configuration.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an outline of a configuration of an information transfer device according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an outline of an example of a process of the information transfer apparatus according to the embodiment.

FIG. 3 is an explanatory diagram illustrating a transfer path when the system of the information transfer apparatus according to the embodiment is started.

FIG. 4 is an explanatory diagram showing a transfer path at the time of normal task processing of the information transfer device in the embodiment.

FIG. 5 is a block diagram showing an outline of a configuration of a conventionally proposed information transfer device.

[Explanation of symbols]

 10, 30 Central processing unit 11, 31 Lower block 14, 34 Processor 17, 36 Internal bus 20 Information setting unit 21 Notification information collecting unit 32 Large-capacity transfer bus 33 Small-capacity transfer bus 35 Memory unit 37 Large-capacity memory 38 Small-capacity memory 39 memory control unit 40 large capacity transfer unit 41 small capacity transfer unit 42 large capacity transfer circuit 43 small capacity transfer circuit 44 transfer control unit 45 setting processing unit 46 notification processing unit

Claims (5)

[Claims] A first transfer unit for transferring information at a first transfer speed; and a second transfer unit for transferring information at a second transfer speed lower than the first transfer speed of the first transfer unit. Transfer means, first information generating means for generating first information, first information processing means for performing a predetermined process using the first information generated by the first information generating means, A second information generating means for generating second information; a second information processing means for performing a predetermined process using the second information generated by the second information generating means; When the number of generated information is large, the first information generated by the first information generating means is transferred to the first information processing means by the first transfer means, and the second information generation is performed. Means for transmitting the second information generated by the means to the second information processing means. A first transfer selection unit for causing the second transfer unit to transfer, and when the number of the second information generated is large, the first information generated by the first information generation unit is transferred to the first information generation unit. And the second information generated by the second information generating means is transferred to the second information processing means by the first transferring means. An information transfer device comprising: a second transfer selection unit that causes the information to be transferred. 2. A method according to claim 1, wherein the predetermined storage capacity is defined by a first storage capacity and a second storage capacity.
A storage capacity dividing unit that divides the storage capacity into a plurality of storage capacities; an information generation unit that generates first information; a first transfer unit that transfers the first information generated by the first information generation unit; A first storage unit having a first storage capacity divided by the storage capacity dividing unit and storing the first information transferred by the first transfer unit; and a first storage unit storing the first information. First information processing means for performing predetermined information processing using the first information, and second information generating means for generating second information based on a result processed by the first information processing means A second storage unit having a second storage capacity divided by the storage capacity division unit and storing the second information generated by the second information generation unit; The number stored by the means A second transfer unit for transferring the second information; an information receiving unit for receiving the second information transferred by the second transfer unit; An information transfer apparatus comprising: a storage capacity division changing unit that changes the first and second storage capacity division ratios by the storage capacity division unit. 3. The method according to claim 1, wherein the predetermined storage capacity is defined as a first storage capacity and a second storage capacity.
Storage capacity dividing means for dividing the storage capacity into two storage capacities, a first storage means having a first storage capacity divided by the storage capacity dividing means, and a second storage capacity divided by the storage capacity dividing means A first information generating means for generating first information, and a first information generated by the first information generating means at a first transfer rate. First to transfer to storage means
Transfer means, and first information processing means for performing predetermined processing by using the first information transferred by the first transfer means and stored in the first storage means, and second information And a second information generating means for storing the generated second information in the second storage means; and a second information generating means for storing the generated second information in the second storage means and storing the second information in the second storage means. Second transfer means for transferring the second information at a second transfer rate, and second information processing means for performing a predetermined process using the second information transferred by the second transfer means And changing the first and second storage capacity dividing ratios by the storage capacity dividing means based on the generation status of the first and second information, and changing the first and second transfer speed ratios. Transfer rate changing means. That information transfer device. 4. The first information is notification information, the second information is setting information, and the transfer rate changing means has a first storage capacity larger than a second storage capacity at system startup. And the first transfer rate is changed to be higher than the second transfer rate. During normal processing, the first storage capacity is smaller than the second storage capacity, and the first transfer rate is changed to the second transfer rate. 4. The information transfer apparatus according to claim 3, wherein the transfer rate is changed to be lower than the transfer rate. 5. The information transfer apparatus according to claim 4, wherein said transfer rate changing means changes said first and second transfer rates by changing a transfer clock frequency and a transfer bus width.