JPH06332965A - LSI automatic design system - Google Patents

Abstract

(57) [Summary] [Purpose] Realize the automatic design of LSIs that satisfy the required functions and performances by reusing existing design data. [Configuration] Library component storage means 101 for registering existing design data (circuit data) together with its design procedure (conversion information) as a component, and component configuration for inputting a component configuration realizing a desired function Input means 105
, A library component specializing means 106 for determining the function of a generalized component, a component synthesizing means 107 for synthesizing a component having one function combining the functions of the respective components, and various data. Based on the information about the design procedure of each part, and the method of converting the part to the target level based on the information about the design procedure of each part. Conversion method selecting means 114 for executing the conversion, and circuit data converting means 11 for executing the conversion of the parts according to the selected method.
And 5 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LSI automatic design system which enables effective utilization of design assets.

[0002]

2. Description of the Related Art In recent years, a wide variety of CAD tools have been developed to realize LSI design automation. However, when designing using a plurality of CAD tools, each CAD tool is used.
Since there is no data consistency between the tools, it was necessary to create a dedicated converter in order to proceed with the design. In addition, in order to use each CAD tool optimally, it is necessary to be familiar with the tool starting method and the tool interface. Therefore, there is a problem that it takes a considerable period of time to introduce the CAD tool.

As a means for solving this problem, an integrated system of CAD tools for LSI design called a framework has been developed. This framework has a function of managing a design procedure (design process) so as to perform navigation of design tool execution according to a design methodology, in addition to a function of integrating individual CAD tools,
It is provided with a design data management function that manages design data that is an input / output of the tool, and a design data version number management function that manages version / revision of a design data group.

An example of such a framework is described in Toshiaki Miyazaki et al., "Process Scheduling Method and Interface Construction Tool for CAD Integration", Design Automation / Research Report No. 56-1, 1991, pp1-8. The design procedure is managed there using a graphic interface called a design flowchart editor. Based on the relationship between the CAD tool and its input / output data set by the design flowchart editor,
It is possible to manage the design procedure. Further, the data designed by one designer can be easily used by another designer.

[0005]

In order to efficiently design a high-performance LSI, it is important to flexibly reuse existing design data to improve design efficiency. As described above, the framework realizes automation of LSI design by managing design data and design procedures. However, the actual LSI is composed of various combinations of circuits, and there is an optimum design procedure for each circuit. Therefore, the design procedure prepared in advance in the framework is applied to advance the design. It is difficult to generate a circuit that satisfies the desired performance only by doing so. As described above, in the automation of the reusable design using the framework, the existing design data to be reused and the information about the optimum design procedure for each design data are not associated with each other. There is a problem that it is difficult to automatically generate.

An object of the present invention is to realize automatic design of an LSI satisfying required functions and performance by reusing existing design data.

[0007]

In order to achieve the above object, the present invention collectively manages existing design data as a part together with its design procedure and uses the part for reuse design. .

Specifically, the LSI automatic design system of the present invention includes storage means for registering the actual data of the existing design data and the management information thereof as a component so as to manage the component collectively. By combining the input means of the component configuration for performing the functional design using the components registered in the storage means and the components selected by the input means, the components satisfying the connection relation of each component are synthesized. And a means for converting the actual data of the parts used in the design into target level data by an optimum tool according to the information about the design procedure of each part. Especially when a part is designed hierarchically, if a target level is set for a part in a higher layer, the same target level is set for the part in a lower layer that constitutes that part, and each part has that level. Convert actual data to target level data based on the information about the design procedure that each has.

[0009]

According to the present invention, as will be described below, it is possible to realize automation of LSI design from the stage of functional design.

Parts generated from existing design data are registered in the storage means. This part holds not only the actual data of the design data but also information about the management of the design data, information about the design procedure, information about the hierarchical design of the part, information about the layout shape of the part, and the like.

From the parts registered in the storage means, a part having a function required to realize a desired function is selected. When the part has generalized design data, the design data is specialized to generate design data having a fixed function to be the target of the design process.
The functional design is executed by combining these design data. At this time, each design data is represented by a symbol that represents the shape of the layout. By arranging this symbol in the image of the final floor plan and proceeding with the design, a design that satisfies the floor plan is performed from the functional design stage. It becomes possible.

Next, design data satisfying the connection relationship between the respective design data forming the LSI is synthesized based on the information regarding the input / output of each design data. This makes it possible to automate the entire design of the functions in the LSI design simply by combining the necessary functions.

Next, based on the result of the functional design, further LS is performed.
I will proceed with the design. The information about the design procedure and other information are registered in the component that generated each design data, and the design process of each design data is performed according to the information. Here, when the target level is set for the design data, the optimum tool is selected for each design data according to the design procedure that each design data has, and the tool is operated on the design data in the optimum method to automatically design the target level. Generate data.

Further, when the design data is designed hierarchically, if the target level is set for the data of the upper hierarchy, the lower level which constitutes the design data is constructed based on the information about the hierarchical design of the part which generated the data. The same target level is set for the hierarchical design data, and each design data is converted into the target level data based on the design procedure of each design data.

As described above, each part is provided with information about the design procedure, information about the hierarchical design, etc., so that it is only necessary to give information for setting the target level once to the designated design data. Target levels are set for all the constituent design data. Moreover, even when the respective design data are converted according to different conversion processes, the conversion of the design data can be executed without paying attention to the design procedure.

[0016]

1 (a) and 1 (b) are views showing the configuration of an LSI automatic design system according to an embodiment of the present invention. In FIG. 1A, a function design unit for realizing a desired circuit function using the components registered in the library is
In FIG. 1B, a design data conversion unit for converting a functionally designed circuit into circuit data of a finally required level is shown.

In FIG. 1A, the library component storage means 101 secures a storage area 102 for each component. Each storage area 102 has a library component circuit data storage unit 103 for registering a component name, circuit data, a parameter for determining a function, and information about a circuit configuration of a component, which tools, in what order, and under what conditions. The library component conversion information storage unit 104 is provided for registering information regarding a design procedure such as whether an optimum circuit can be obtained by executing the original process.

FIG. 9 shows an example of a component registration method in the library component storage means 101. The library part storage means 101 has a set of parts classified by function, and A, B, C, D, ...
-Is a set of parts each having a specific function. For example, A, B, C, and D are CPU, RA
It is a set of parts having functions such as M, ROM, and timer. An actual circuit design will be performed using the parts classified by this function.

Reference numeral 901 in FIG. 9 shows an example of a method of registering the components that make up each component set. In this registration method, as the function of the component becomes more detailed, the component is registered in the lower hierarchy. That is, as the function is specified, the component is registered in the lower hierarchy. In addition, the lower layer components inherit all the functions of the upper layer components. By registering the parts with the function inheritance relationship as described above, it is possible to speed up the search for the parts used at the time of design. Numeral 902 is an example of one component, and in addition to the circuit data 103a, information 104 relating to the design procedure, information 103b relating to the configuration of the component, and information 10 relating to the parameters for determining the function of the component.
The component itself has various information necessary for design such as 3c. As a result, it is possible to automatically proceed with the design by using a different method for each part, only by giving the same conversion command to each part.

Next, a method of designing a circuit having a desired function using the components registered in the library component storage means 101 (functional design method) will be described.

First, as shown in FIG. 1A, a library component circuit data storage unit 103 determines a list of component names via the signal line 1, information on the configuration of each component, and the function of each component. Is sent to the circuit configuration input means 105, and based on the information, the circuit configuration input means 105 selects components necessary for realizing a desired circuit, and parameter information of each selected component Information for setting the function is set. Also, here, the operating frequency required for each component,
Input information about design constraints such as circuit area, and also specify the place of placement of parts based on the image of floor plan. Of the information set here, the information on the design constraint is stored in the design constraint storage means 1 via the signal line 5.
The information about the selected component name and the information about the placement location of each component are registered in the circuit configuration information storage unit 109 via the signal line 4. As described above, the setting of information necessary to realize a desired circuit using this system is completed.

FIG. 14 shows an example of designing a component layout by the circuit configuration input means 105. A, B, C, D, and E are components each having a specific function, the outer frame represents the outer shape of the LSI when the design is actually completed, and the arrangement position of each component is the actual design. It is linked to the floor plan information of each part in. The size of each component in the figure is directly linked to the area of each component on the LSI. This makes it possible to estimate the area of the LSI.

Next, the library component specializing means 106 converts the design data of the generalized component into circuit data of which the function is fixed. Here, circuit data corresponding to each component is fetched from the library component circuit data storage unit 103 via the signal line 2 based on the information regarding the component name of the circuit sent via the signal line 3, and the circuit data is obtained. Based on the information sent through the signal line 3 for determining the function of the component, the circuit data is converted into the circuit data in which the function is specialized. The specialization of the function of the circuit data of the library parts is performed for all the parts constituting the circuit.

Next, the component synthesizing means 107 generates a circuit component satisfying the connection relation of all the components forming the circuit. Here, the information about the components that make up the circuit, which is registered in the circuit configuration information storage unit 109, is transmitted via the signal line 8, and the specialized circuit data generated by the library component specializing unit 106 is transmitted via the signal line. 7 and information regarding the circuit data conversion method for unifying the level of the circuit data via the signal line 6
7, the information regarding the input / output of all the components forming the circuit is searched, the connection relation between all the circuit data is extracted based on the information, and the circuit component satisfying the connection relation is generated. Next, the specialized circuit data sent via the signal line 7 and the circuit data generated by the component synthesizing means 107 are registered in the circuit data storage means 110 via the signal line 9. As described above, the functional design of the desired circuit and the circuit data specialization processing are completed. Here, the circuit data storage means 110, the design constraint storage means 108, and the circuit configuration information storage means 109 may be realized by the same storage means, that is, the design data storage means 111.

The design data conversion unit shown in FIG. 1B performs a process of converting a circuit whose functional design has been completed into circuit data of a finally required level (target level).

First, the conversion command input means 112 inputs a conversion command and a part name giving the conversion command,
The conversion command designating the conversion target level and the component name are sent to the conversion command delivery means 113 via the signal line 10.

In the conversion command delivery means 113, the signal line 10
Based on the name of the designated part sent via the signal line and the information about the circuit configuration registered in the circuit configuration information storage means 109 sent via the signal line 12, All the parts in the hierarchy are searched, and the names of all the parts and the conversion command sent via the signal line 10 are delivered to the conversion method selection means 114 via the signal line 16.
Here, regarding a component not registered in the library component storage means 101, a conversion command and a component name not registered are sent to the conversion method selection means 114 via the signal line 15.

The conversion method selection means 114, which has received the conversion command and the part name via the signal line 15, further receives information about the arrangement position of the parts from the circuit configuration information storage means 109 via the signal line 11 and the signal line 13. The information about the design constraint is stored in the design constraint storage means 108 via the signal line 17, and the library component storage means 101 is connected via the signal line 17 to the unregistered component conversion information storage unit 118 for the unregistered component.
Upon receiving the conversion information set in, the optimum tool for performing the parts conversion based on the information and parameters for using the tool are determined, and the optimum conversion means is selected.

The conversion method selection means 11 is connected to the circuit data conversion means 115 selected by the conversion method selection means 114.
Information regarding the parameter when using the tool determined in 4 and the component name are transmitted via the signal line 19, and circuit data corresponding to the designated component are transmitted via the signal line 20. It is possible to convert the circuit data into circuit data of a desired level by causing a tool in the circuit data conversion means 115 to act on the circuit data using the parameters sent through the signal line 19.

In the conversion method selection means 114, the part name of the part forming the designated part via the signal line 16 and the conversion command given to the part are supplied from the design constraint storage means 108 via the signal line 14 to the design constraint. Information about signal line 1
8 receives the component conversion information of each component constituting the designated component, and based on this information, the optimum tool and parameter for converting each individual component into the data of the level designated by the conversion command. The decision is made and the optimum conversion means is selected for each component.

The circuit data conversion means 115 selected by the conversion method selection means 114 relates to the name of the part to be converted via the signal line 21 and the parameters for using the tool to optimally convert the part. Information
Further, circuit data corresponding to the component to be converted is sent via the signal line 20. By converting the circuit data into a desired level of circuit data by operating a tool in the selected circuit data conversion means 115 using the parameters sent via the signal line 21. You can The circuit data converted by the circuit data conversion unit 115 is registered in the circuit data storage unit 117 via the signal line 22.

As described above, the designer carries out the functional design by combining the components registered in the library component storage means 101 and only specifies the target level, and the desired function of the desired function can be obtained without being aware of the circuit data. It is possible to obtain the level circuit data. The circuit data storage means 110 and 117 may be the same storage means.
Further, the circuit configuration information storage means 109, the design constraint storage means 108, and the circuit data storage means 110 and 117 may be realized by the same storage means and design data storage means 111.

FIG. 2 is a diagram showing a hardware configuration of the LSI automatic design system, and the circuit design processing shown in FIG. 4 is executed by the hardware configuration. In FIG.
201 is an input device, 202 is a processing device, 203 is an output device, and 204 is a storage device. Input device 201
Is the circuit data such as the functional description, the logic circuit, and the layout data to be registered in the component library for designing the circuit, the information about the designing method of each circuit data, and the circuit configuration necessary for performing the desired circuit design. Information relating to the processing device 202, and the output device 203 is a device for outputting a circuit which has the same function as the input circuit and which is composed of existing elements. The processing device 202 executes various processing programs stored in the storage device 204 to perform circuit design processing such as processing for converting the input design circuit into circuit data of a desired level. As the input device 201, a keyboard, a card reader, a schematic entry system, a file or the like is used. Also, the output device 2
As 03, a character display, a graphic display, a plotter, a file, etc. are used.

FIG. 3 is a block diagram showing the internal structure of the storage device 204. The conversion method storage means 301 stores LS
Various processing methods for performing the I design are stored. In the library component storage unit 302 (101 in FIGS. 1A and 1B), the components for performing the LSI design, together with the circuit data, the design method, and other information necessary for performing the circuit design, are stored. It is stored. Design data storage means 303 (11 in FIG. 1A and FIG. 1B)
1) stores design data such as circuit data, design constraints, and circuit configuration of the LSI generated during the LSI design.

FIG. 4 is a process flow chart of the LSI automatic design system. The overall operation will be described with reference to the flow chart.

First, in the circuit configuration input step 401,
Circuit data storage unit 1 in the library component storage means 101
Select the circuit component required to realize the desired function from the components registered in 03, and design constraints necessary to realize the desired function, as well as information on the layout related to the floor plan. Make an input. Next, in a design constraint registration step 402, a circuit configuration input step 401
The design constraint storage unit 108 stores the information regarding the design constraint for the individual components or the entire circuit input in
Register with. In the circuit configuration information registration step 403, the circuit configuration information input in step 401 is registered in the circuit configuration information storage unit 109. In the next part specialization step 404, the circuit configuration input step 40
Circuit configuration input step 4 using the information input in 1.
The parameter of each part selected in 01 is replaced and the component is selected by the parameter to specialize the function of the part. In the next component synthesizing step 405, a component for integrating the components forming the circuit based on the information on the input / output of the component specialized in the component specializing step 404 and the information on the circuit configuration registered in step 403. Is synthesized. Next, circuit data registration step 4
In 06, the circuit data specialized in step 404 and the circuit data for connecting the circuit component parts synthesized in step 405 are registered in the circuit data storage means 110.

In the next conversion command input step 407, a conversion command for converting the designed circuit into data of a desired level is input. Conversion instruction delivery step 408
Then, the conversion command input in step 407 is delivered to the conversion method selection means 114. Conversion method selection step 40
In No. 9, based on the delivered conversion instruction and the information 104 regarding the conversion method of the component that is the object of conversion, the information regarding the conversion tool and the parameters set when using the tool is determined, and this information is determined. Based on, select the most suitable conversion method for each part. In the circuit data conversion step 410, the circuit data registered in step 406 is converted using the conversion method selected in the conversion method selection step 409, and the conversion result is stored in the circuit data storage means 117 in the circuit data registration step 411. Register with. With the above, the LSI design is completed.

Next, a method of registering a component in the library component storage means 101 will be described with reference to FIG.

First, in the part input step 1301, design data is input. Here, generalized circuit data, information about a designing method of the circuit data, information about a configuration of the circuit data, and information about a generalization parameter are collectively input as a part. Next, the component input step 1301 is executed by the component function analysis step 1302.
Analyze the function of the part input in. In the component name determination step 1303, the optimum component name expressing the function of the component is determined based on the information regarding the function of the component extracted in the function analysis step 1302.
Next, in storage means analysis step 1304, the storage means in which the parts are already registered is analyzed, and the information regarding the registered configuration of the existing parts registered in the storage means is extracted. The extracted registration structure has a hierarchical structure based on the function, and as the function becomes more detailed, the hierarchy to be registered deepens. In the step 1305 of determining the part registration position,
The name determined in the component name determination step 1303 is compared with the information regarding the existing component registration configuration obtained in the storage means analysis step 1304, and the component input step 130 is performed.
The registration position of the part input in 1 is determined. Finally, the part is newly registered at the registration position in the storage means determined in step 1306. With the above-described component registration method, it is possible to perform a high-speed search for a component when designing it, and to effectively select a component by the component name associated with the function.

Next, referring to FIGS. 5 and 6, FIG.
The configuration of the circuit configuration input means 105 and its processing flow will be described in detail.

FIG. 5 is a detailed configuration diagram of the circuit configuration input means 105. The library component storage means 101 has a structure shown in FIG.
As shown in, the design data that has been made into components and other information necessary to realize automation of circuit design are registered.

First, in the component searching means 501, the signal line 2
3, the parameter for determining the required component name and the function of each component from the information registered in the circuit data storage unit 103 of each component in the library component storage unit 101. The information regarding the above and the configuration information of each part are extracted. The component name, parameter information and configuration information of each component extracted here are stored in the signal line 2
4 is sent to the used component input means 502.

In the used component input means 502, the signal line 24
Based on the component name and the information about the parameters of each component sent via the, the components required for designing a circuit that realizes a desired function are selected.

Information on the component selected by the used component input means 502 is stored in the circuit configuration information storage means 109 via the signal line 25, and the design constraint input means 503 via the signal line 26.
To the parameter input means 504 via the signal line 27. That is, the component name sent via the signal line 25, the information about the configuration of each component, and the information about the final placement position of the component are registered in the circuit configuration information storage unit 109 as the circuit configuration information. The information regarding the arrangement position of the component designated at this time becomes the information regarding the floor plan of the circuit. Further, for each component sent via the signal line 26, the design constraint input means 503 inputs a design constraint that each component should satisfy, and information on the constraint is stored together with the component name via the signal line 28. Send to the means 108 and register. Further, with respect to the information regarding the parameter sent through the signal line 27 and the parameter for determining the function of the component, the parameter input means 504 inputs the parameter information for each component to realize the desired function. , Its information is sent via the signal line 29 to the library component specializing means 1
Sent to 06.

FIG. 6 is a process flow chart of the circuit configuration input means 105.

First, in a parts list search step 601, a list of parts registered in the library parts storage means 101 is searched, and the part names of all parts, information on parameters for determining the function of each part, and each part. Extract the component configuration information. In the used component input step 602, a component necessary for configuring a circuit having a desired function is selected based on the information extracted in step 601.

In the step 603 for selecting a processing object, one of the parts selected in the used part input step 602 is selected as a processing object. In the parameter input step 604, parameters are set for determining the function for the parameter information retrieved in step 601 corresponding to the component selected in the processing target selection step 603.
In the parameter registration step 605, the parameters are registered in the library component specializing means 106. In the design constraint input step 606, the design constraint that the component must satisfy to realize a desired function is input. Next, in the design constraint registration step 607, the design constraint input in the design constraint input step 606 is registered in the storage unit 108. Circuit configuration information registration step 6
At 08, the information about the configuration of the component and the information about the final arrangement position of the component are registered in the circuit configuration information storage unit 109 as the circuit configuration information. Next, in step 609, it is determined whether or not all the components necessary for configuring the circuit are prepared. If they are all completed, the functional design of the circuit is ended. Select a part that does not exist and execute the subsequent processing again. As described above, it becomes possible to design a circuit having a desired function by selecting a component obtained from existing design data. At this time, the design can be performed without paying attention to the contents of the design data.

Next, referring to FIGS. 12 and 7, FIG.
The configuration of the library component specializing means 106 in (a) and its processing flow will be described in detail.

FIG. 12 shows the library component specializing means 10.
It is a block diagram of FIG.

First, in the circuit data analysis means 1201,
Library component storage means 101 sent via signal line 2
The function determination for performing the specialization of the function input through the signal line 3 is performed by analyzing the circuit data of the part to be specialized and the information about the parameter for determining the function stored in the computer. Decide how to act on information (parameters). Here, a method of replacing the information set as the parameter or a method of selecting data to be used according to the information set as the parameter is selected.

Next, the selection parameter operating means 1202 uses the data selected based on the parameter-related information from the circuit data to be specialized, which is sent via the signal line 40, so that the special function Parameter information for performing the conversion is sent. By applying a parameter to this circuit data, the circuit data is specialized by selecting the data to be used.

In the substitution parameter acting means 1203, the parameter information for determining the function by the substitution of the parameter via the signal line 41 and the part of the function by the selection parameter acting means 1202 via the signal line 42 are specialized. Circuit data is sent. The specialization of the circuit data is completed by replacing the parameter of the circuit data with the parameter information sent via the signal line 41. The circuit data with the specialized functions obtained as a result of this is stored in the signal line 43.
Is sent to the component synthesizing means 107 via.

FIG. 7 shows the library component specializing means 106.
FIG. First, in step 701, the circuit data of the library component to be specialized is input. In the function setting information extracting step 702, by analyzing the input circuit data, the function confirmation information (parameter) for specializing the function is applied to each parameter included in the circuit data of the component. Decide how. Next, in the function confirmation information input step 703, information for confirming the function of the already set circuit data is input. In step 704, the circuit data input in step 701 is made to act on the parameters set in step 703 to generate circuit data having a parameter-free function. As described above, the circuit data obtained by the generalized combination of the components can be converted into the data for which the function having no parameter is defined and which is used for the progress of the design.

Next, the processing flow of the component synthesizing means 107 will be described in detail with reference to FIG.

First, in the circuit configuration information input step 801, the relationship between each component constituting the circuit registered in the circuit configuration information storage means 109, the information regarding the arrangement position of each component, and at what circuit level the synthesis is performed. Enter the information in. In the circuit data input step 802, the circuit data specialized by the library component specializing means 106 is input. Next, in step 803 of determining the level of synthesis of circuit data, step 801 of inputting circuit configuration information
The information about the level of component synthesis input in is analyzed and whether the specified level is the functional level,
The subsequent processing flow is selected according to the logic level or the mask layout level.

When the mask layout level is designated, all the circuit data input in the circuit data input step 802 by the step 804 of converting the circuit data is converted into conversion information (signal line). 6) according to the information sent from the library component conversion information storage unit 103 via 6). Next, in the circuit data input / output pin information extraction step 805, the information on the input / output pins of the circuit data converted in step 804 is extracted, and then the information on the input / output pins and the information on the circuit component configuration are extracted. In step 806 of creating inter-part connection information based on the above, information regarding the connection relationship between each circuit data is created. Next, in step 807,
Information about the connection between the circuit data and step 80
Based on the information regarding the arrangement position of each circuit data input in 1, the circuit data having the wiring satisfying the connection relation between the circuit data and the arrangement satisfying the information regarding the arrangement position of each circuit data Perform synthesis. Finally, the circuit data converted in step 804 and the circuit data combined in 807 are registered in the circuit data storage means 110 in a circuit data registration step 815.

When the logic level is designated, all the circuit data input in the circuit data input step 802 is converted by the step 808 for converting the circuit data. The information is sent from the library component conversion information storage unit 103 via the) to the logic level circuit data.
Next, in the circuit data input / output pin information extraction step 809, the information on the input / output pin of the circuit data converted in step 808 is extracted, and then the information on the input / output pin and the information on the circuit component configuration are extracted. In step 810 of creating inter-component connection information based on the above, information on the connection relationship between each circuit data is created. Then, in step 811, synthesis of circuit data at a logic level that satisfies the connection relationship between the circuit data and the fanout constraint between the circuit data is performed based on the information about the connection between the circuit data. .
Finally, the circuit data converted in step 808 and the circuit data combined in step 811 are registered in the circuit data storage means 110 in a circuit data registration step 815.

When the function level is designated, the circuit data input / output pin information extraction step 812 extracts all the circuit data input / output pin information from all the circuit data input in the circuit data input step 802. Then, based on the information regarding the input / output pins and the information regarding the component configuration of the circuit, in the step 813 of producing inter-component connection information, information regarding the connection relationship between the respective circuit data is produced. Next, at step 814, based on the information regarding the connection between the circuit data, circuit data of a functional level satisfying the connection relation between the respective circuit data is synthesized. Finally, the circuit data input in step 802 and the circuit data synthesized in step 814 are registered in the circuit data storage means 110 in a circuit data registration step 815.

According to the processing of FIG. 8 described above, it is possible to create circuit data that integrates individual parts of a circuit in which parts that realize desired functions are combined. The created circuit data is further processed by the design data converter of FIG.

Next, the processing flow of the conversion command delivery means 113 in FIG. 1B will be described in detail with reference to FIG.
First, in the conversion command input step 1001, a conversion command for setting the level of the circuit data to be converted into the circuit is input. Next, in the circuit configuration information input step 1002, the information regarding the components forming the circuit to be converted is input from the circuit configuration information storage unit 109 via the signal line 12. Next, in the step 1003 of searching for circuit components, the component names of all the components constituting the circuit to be converted are extracted. The conversion command is delivered to each part extracted here, and the conversion command is delivered to each part Step 10
04. It is determined in step 100 whether the conversion instruction is delivered to all the parts.
In step 5, when the delivery to all the data is not completed, the process returns to the conversion instruction delivery step 1004, and the process is continued until the delivery of the conversion instruction to all the components is completed. As a result, the conversion command can be delivered to all parts.

Next, the processing flow of the entire design data conversion unit shown in FIG. 1B will be described in detail with reference to FIG.

First, in the conversion command input step 1101, the conversion command input means 112 inputs information on which level of circuit data the data is to be converted into. Next, in the circuit configuration information input step 1102, the circuit configuration information storage unit 109 inputs the information about the components that make up the circuit and the information about the arrangement position of each component. Next, in design constraint input step 1103, design constraint storage means 1
From 08, information regarding design constraints that should be satisfied in converting this circuit is input. Next, in the step 1104 of inputting component conversion information, the component conversion information corresponding to each component held by the components constituting the conversion target circuit is input from the library component conversion information storage unit 104.

Next, the conversion instruction designation level determination step 11
In 05, the conversion method selection means 114 analyzes the conversion command input in the conversion command input step 1101 and determines whether the designated level is the logical level or the layout level. The subsequent processing method changes depending on the determination result.

If the conversion instruction specifies the layout level, first in the conversion method determination step 1106,
In the conversion method selection means 114, the circuit conversion method is determined based on the component conversion information input in the component conversion information input step 1104, and in the circuit data input step 1107, the circuit data storage means 110 is changed to the conversion target component. Input the corresponding circuit data.
Next, in the circuit data conversion step 1108, the circuit data conversion means 115 causes the conversion method determination step 11
The circuit data conversion method determined in 06 is applied to the circuit data input in the circuit data input step 1107 to convert the circuit data, and finally the placement and wiring process between the circuit data is performed. The circuit data of the conversion result converted in the circuit data conversion step 1108 is registered in the circuit data storage means 117 in the circuit data registration step 1112.

When the conversion instruction specifies the logic level, first, in the conversion method determining step 1109, the conversion method selecting means 114 inputs the parts conversion information.
The circuit conversion method is determined based on the component conversion information input in 04, and the circuit data input step 1
At 110, circuit data corresponding to a component to be converted is input from the circuit data storage means 110.
Next, in the circuit data conversion step 1111, the circuit data conversion means 115 determines the conversion method step 11
The circuit data conversion method determined in 09 is applied to the circuit data input in the circuit data input step 1110 to convert the circuit data, and finally the logic level circuit data satisfying the fanout constraint between the circuit data. Perform the conversion process up to. The circuit data of the conversion result converted in the circuit data conversion step 1111 is registered in the circuit data storage means 117 in the circuit data registration step 1112.

According to the processing of FIG. 11 explained above,
It becomes possible to convert the circuit data without paying attention to the level of the circuit data and the conversion method.

By adopting the object-oriented technique in the LSI automatic design system, more efficient parts reuse can be achieved. 15 (a) and 15 (b),
It is a figure which shows the structure of the LSI automatic design system which concerns on the other Example of this invention which introduced this technique. In FIG. 15A, a functional design unit for realizing a desired circuit function using the components registered in the library is finally requested in FIG. 15B for the functionally designed circuit. A design data conversion unit for converting into level circuit data is represented. Here, the functional design unit of FIG.
The design data conversion unit in (b) is basically each shown in FIG. 1 (a).
Also, as shown in FIG. 1B, by handling each component registered in the library component storage means 101 as an object, it is possible to perform design processing by operating the object.

In FIG. 15A, the library component storage means 101 secures a storage area 102 for each component (object). Each storage area 102 is
A library component circuit data storage unit 103 for registering a component name, circuit data, a parameter for determining a function, and information about a circuit configuration of a component, and which tool, in what order, under what conditions A library component design procedure information storage unit 104 for registering information regarding a design procedure such as whether an optimum circuit can be obtained is provided.

First, the library component storage means 101
A method (function design method) for designing a circuit having a desired function by using the components registered in 1. will be described.

First, as shown in FIG. 15A, the library component circuit data storage unit 103 determines a list of component names via the signal line 1, information regarding the configuration of the component, and the function of each component. Information about the parameters for sending to the component configuration input means 105, based on the information,
A function required for realizing a desired circuit is input to the component configuration input means 105, information about a required operating frequency, a circuit area, etc. is input as a design constraint, and a component satisfying these conditions is specified. . A part is selected from the specified parts, and when the selected part is generalized, the parameter for setting the function is set. With regard to the placement of the parts, the placement location is designed in the image of a floor plan. Among the information set here, the information on the design constraint is registered in the design constraint storage means 108 via the signal line 5, and the information on the selected component name and the information on the placement location of each component are transmitted via the signal line 4 to the circuit. It is registered in the configuration information storage means 109. As described above, the setting of information necessary to realize a desired circuit using this system is completed.

Next, the design object generating means 120 uses the generalized components registered in the library component storing means 101 to design the circuit data of which the function is fixed, the design procedure, and the information about the hierarchical structure. Create an object. Here, the circuit data corresponding to each part is based on the information about the parts used for forming the circuit and the information about the parameters given to each part forming the circuit, which are sent via the signal line 3. From the library component circuit data storage unit 103 via the signal line 2 and converts the circuit data into circuit data with specialized functions based on the information sent via the signal line 3. Further, the information about the design procedure and the like included in the library component storage means 101 and the specialized circuit data are combined to form a design object, which is stored in the design object storage means 122 via the signal line 51. The generation of the design object from this library part is performed for all the parts constituting the circuit.

Next, the synthesizing means 121 for connection between design objects synthesizes the objects for connecting the design objects. Here, a design object that satisfies the connection relationship of all the components that make up the circuit is generated. First, the information regarding the parts constituting the circuit registered in the circuit configuration information storage means 109 is signaled via the signal line 8, and the information regarding the input / output of the circuit data of each object generated by the design object generating means 120 is signaled. The connection relationship between all the circuit data is extracted based on the information sent via the line 50, and a design object satisfying the connection relationship is generated. Further, the design object generated here is registered in the design object storage means 122 via the signal line 52. As described above, the functional design of the desired circuit and the generation of the design object are completed. Here, the design object storage means 122, the design constraint storage means 108,
The circuit configuration information storage unit 109 is the same storage unit,
It may be realized by the design data storage means 111.

The design data conversion unit of FIG. 15B carries out a process of converting a circuit whose functional design has been completed into circuit data of a finally required level (target level).

First, the design target input means 123 inputs a design target to be a processing target to the design object to be designed, and the design target and the design object name to be processed are the signal lines 53. It is sent to the design procedure executing means 125 via.

In the design procedure executing means 125, the signal line 53
Based on the name of the design object to be processed, which is sent via the network, and the information about the circuit configuration registered in the circuit configuration information storage means 109, which is sent via the signal line 54, the design object to be processed. Has a child hierarchical design object, all child hierarchical design objects constituting the design object are searched, and all the child hierarchical design objects are also processed. Further, the circuit configuration information storage unit 109 receives information about the component arrangement position via the signal line 54 and the design constraint storage unit 108 receives information about the design constraint via the signal line 55. Information is generated to perform the design procedure optimally and accurately. Further, via the signal line 57, information regarding the actual design procedure such as the tool used for actually performing the design procedure executed for the design object to be processed, the parameter when using the tool, and the application order of each tool is received. . The processing for each design object is executed according to this actual design procedure, and the circuit data of each object sent via the signal line 56 is converted and verified.

In particular, when the design object to be processed has child hierarchy design objects, the design procedure is similarly executed for all child hierarchy design objects.
At this time, since the actual design procedure is also sent to each child hierarchical design object via the signal line 57, the optimum design procedure is executed for each child hierarchical design object. The circuit data converted by the design procedure executing means 125 as described above is registered in the design object storage means 124 via the signal line 58 as one circuit data of the design object to be processed.

As described above, the designer performs the functional design by combining the components registered in the library component storage means 101 and only specifies the design target as the target level, without being aware of the circuit data and the design procedure. It is possible to obtain a desired level of circuit data of a desired function or a verification result. The design object storage means 122 and 124 may be realized by the same storage means. The two design object storage means 122 and 124 may be different, but in that case, it is necessary to clarify the relationship between the objects.

FIG. 16 shows FIGS. 15 (a) and 15 (b).
5 is a processing flow chart of the LSI automatic design system of FIG. The overall operation will be described with reference to the flow chart.

First, in the circuit configuration input step of 1601, circuit components necessary for realizing the function of a desired circuit are selected, and design constraints and floor plans necessary for realizing the desired function are visualized. Information about the layout is input, and design objects that are the basis of design in the subsequent design are generated from the selected parts, and the functional design is realized by combining the design objects. Next, in a design constraint registration step 1602, the design constraint input in step 1601 is registered in the design constraint storage unit 108. In the circuit configuration information registration step 1603, the circuit configuration information input in step 1601 is registered in the circuit configuration information storage unit 109. Next, in the design object registration step of 1604, the design object generated in step 1601 is registered in the design object storage unit 122. 160
In the step 5 of creating a connection between design objects, a design object satisfying the connection relationship between the design objects is created so that data can be transmitted and received between the design objects created in step 1601.

Next, the circuit design is carried out by performing the required processing on the generated design object.
In the design target input step of 06, a design target which is a processing target for the design object is input. The design procedure execution step 1607 executes the design procedure corresponding to the design target. Here, the process is executed by applying the actual design procedure of each design object to the set design goal. The processing result generated in step 1607 is registered as a part of the design object in the step 1608 of registering the design object. With the above processing, an LSI design using library circuit components can be realized.

In the following, the circuit configuration input step 1 in FIG.
Step 601, Step 160 of Creating Connection between Design Objects
5 and each detailed flow of the design procedure execution step 1607 will be described.

FIG. 17 is a detailed flow chart of the circuit configuration input step 1601 in FIG. First, the components required to realize the desired function are selected. Therefore, in the step of searching the parts list in 1700, the parts prepared for design are searched. Then 17
In the function input step of 01, the function of the component required by the circuit to be designed is input to identify the component. Next, in a design constraint input step 1702, information regarding the performance and design constraint to be realized by the specified component is input. As a result, the parts to be selected are further specified. From the parts identified by these steps,
Selection of components used in design is performed in the component selection step 1703. Next, a design object is generated from the selected part. In step 1704, parameters for confirming the actual function of the part selected in step 1703 are input. As a result, the component selected in step 1703 has a fixed function. Next, in step 1705, information about the location of each function-determined component, which is determined by imagining the floor plan, is input. In step 1706, a design object is generated from the selected part based on these pieces of information. Finally, in step 1707, it is determined whether or not all the parts necessary for realizing the desired function have been input. If the input has not been completed,
Returning to step 1701, the missing functional parts are sequentially input. When all the necessary parts are prepared, the circuit configuration input process ends.

The process of the design object generation step 1706 in FIG. 17 will be described in more detail with reference to FIG. The parts selected in step 1703 include
There may be hierarchical components that are hierarchically designed. Therefore, it is first determined in step 1801 whether or not the selected component has a child hierarchical component for which a design object has not been generated and a hierarchical design has been made. Generate a hierarchical design object. Here, by repeating steps 1801 and 1802, a child hierarchy design object is generated from all child hierarchy parts of the selected parts, and it is confirmed that there is no child hierarchy part for which a design object is not generated in step 1801. Then, in step 1803, a design object of the selected component itself is generated. This completes the generation of the design object from the selected component and the child hierarchical components that make up the component. If the child hierarchical circuit component is further hierarchically designed, the child hierarchical circuit component is regarded as the selected component and the above process is recursively repeated to automatically generate all required design objects. .

FIG. 19 is a detailed flowchart of the design object generation steps 1802 and 1803 in FIG. 18 when a plurality of design objects are generated from the same part.

First, the number N of design objects generated in step 1901 is obtained. Here, the reason why a plurality of design objects are generated from the same part is that different design objects may be generated due to the difference in the function determination parameter, or a plurality of objects having the same function may be used. In the next step 1902, the initial value 1 is set to the variable i.

Next, in step 1903, the name of the i-th design object is determined. Even design objects created from the same part can be distinguished by this name. Next, in step 1904, a design object having the name determined in step 1903 is generated. Only the information about the design procedure and the information about the hierarchical structure are registered in the design object at this stage. Next, in step 1905, the data of the design object is generated. Here, the data file of the part is changed according to the parameter for determining the function, and the data is used as the design object data, and is made a part of the design object together with the information about the design procedure previously registered. In step 1906, 1 is added to the variable i, the size of the variable i is determined in step 1907, and the object generation processing from step 1903 is repeated until i becomes larger than the number N of design objects to be generated.

According to the processing of FIG. 19 explained above,
It is possible to generate a plurality of design objects from one part, and it is possible to realize efficient function design and downsizing of design data storage means. Therefore, it becomes possible to automatically reuse the existing parts, which was conventionally done manually.

FIG. 23A shows an example of a registered component in the library component storage means 101, and FIG. 23B shows an example of a design object generated from the registered component.

FIG. 23A shows an example of hierarchically designed circuit components. A circuit component A 2301 has a certain function. The circuit component A has child layer circuit components such as B, C, and D as lower layer circuit components. Further, the child hierarchical circuit component C has child hierarchical circuit components E and F. In addition, each circuit component has information about circuit data, a design procedure, a lower layer circuit component, and a parameter for determining a function. In particular, regarding information regarding circuit data, an area for storing the circuit data is secured for each level such as function, logic, and layout, but it is not always necessary to have all the data. When the circuit component A is selected in such a configuration, the child hierarchical circuit component B constituting the circuit component A,
This means that C, D, E and F are also selected.

A circuit satisfying a desired function is designed by combining components having such a configuration. In step 1706 of FIG. 17, a design object is generated from the circuit component A of FIG. 23 (a). Figure 2 shows an example of the case
3 (b). 2301a in FIG. 23 (b)
The design object A1 is a design object generated from the circuit component A 2301, and has child hierarchy design objects B1, B2, C1, and D1 as child hierarchy design objects. Further, the child hierarchy design object C1 generated from the child hierarchy circuit component C is
It has child hierarchy design objects such as 1, E2, E3, and F1. In addition, each design object has information about circuit data whose function is fixed, a design procedure, and a child hierarchical design object. As can be seen, the design object generated from the circuit component inherits the hierarchical structure of the circuit component, the circuit data, and the information about the design procedure. Further, regarding the circuit data, the function generated in the design procedure execution step 1607 in FIG.
The circuit data of each level such as logic and layout can be registered in the storage area of the circuit data of each level which each design object has.

In an actual design object, a plurality of design objects may be generated from one circuit component.
Examples are 2302a, 23 from circuit component B 2302
The design objects B1 and B2 of 02b are again 2305
Circuit parts E to 2305a, 2305b, 2305c
The design objects E1, E2, and E3 are generated. In addition, since each circuit component and design object have information on the layer one level below, when a component in the upper layer is selected, the search for all components in the lower layer that compose the component is It is possible to use hierarchical information.

FIG. 22 is a detailed flow chart of the step 1605 of generating connection between design objects in FIG. First, in the circuit configuration information input step 2201, the information about the design object that constitutes the circuit registered in the circuit configuration information storage unit 109 is input. Then 2
In a design object selecting step 202, design objects that need to be integrated are selected from the design objects forming the circuit by connecting the design objects. In step 2203, it is determined whether the required design object has been selected. If not, the process returns to step 2202 and the design object is selected again. When the input is completed, the process proceeds to 2204, which is a step of extracting input / output information of each design object. Here, information regarding the input / output of all the selected design objects is extracted from the design objects generated by the design object generation means 120. Based on this extracted information, in step 2205, a design object for connecting the selected design objects is generated.

FIG. 20 is a detailed flow chart of the design procedure execution step 1607 in FIG. First step 200
In 1, the target for executing the design procedure is selected.
Here, it is possible to select all design objects constituting the circuit, individual design objects, or child hierarchical design objects. Next, in step 2002, a design target that is a processing target is input. The design target input here is a final data level when the design process is advanced, and is information such as at which design level the verification is performed when the verification is performed. Based on this information, the design procedure is executed for the target. First, in step 2003, it is determined whether the design object to be processed has a child hierarchical design object for which the design procedure has not been executed. If there is such a child hierarchy design object, the design procedure is executed for the child hierarchy design object in step 2004. By repeating steps 2003 and 2004, the execution of the design procedure for the design object to be processed and the child hierarchical design objects constituting the design object can be completed. At this time, when the child hierarchical design object further includes a child hierarchical design object, the latter is regarded as a processing target design object, and in step 2004,
By repeating 2006 recursively, it is possible to execute the design procedure for all design objects forming the design object to be processed. As described above, it is possible to execute the design procedure for all the design objects constituting the design object by merely setting the design procedure for the design object in the upper hierarchy.

FIG. 21 shows steps 2004,
It is a detailed flow chart of the design procedure execution process in 2005.
First, in step 2101, an actual design procedure, that is, an actual design procedure in which each tool is actually adapted with what kind of parameter and in which order, in order to realize the design goal input in step 2002, is executed. I have it, so I will acquire it. Next, in step 2102, the actual design procedure acquired in step 2101 is executed. This makes it possible to obtain circuit data at a desired level without paying attention to the design data of the design object and the optimum design procedure. Further, when the design target input in step 2002 is to perform verification, the actual design procedure includes a design procedure for converting to the data of the level to be verified and a circuit to be verified for the verification tool. And providing information on where the data is.

Finally, referring to FIG. 24 and FIG.
L by the automatic design system of FIG. 5 (a) and FIG. 15 (b)
A specific example of SI design will be described. In FIG. 24, the circuit component A (2401) is one of the components registered in the library component storage means 101. Here, the circuit component A
Includes the parameterized function description indicated by 2402 as the circuit data, the information regarding the parameters that need to be set to determine the function indicated by 2403 as the conversion information, and the information regarding the design procedure indicated by 2404. There is. This component A is input by the component configuration input means 105
To create a design object,
By assigning a parameter to the parameter information of 03, the design object A (240
5) is generated. The design object A includes a function description 2406 in which a function is defined as a function level circuit data by applying a parameter in the function description 2402 and a design procedure 2407 for converting this data. There is. Here, a value of 15 is set for the parameter variable NUM, and the bit width and the number of repetitions are controlled. The design is advanced by arranging this design object in the image of a floor plan as shown in FIG.

Next, by giving a conversion instruction to the design object A, the conversion processing into the actual circuit data is executed. FIG. 25 shows a conversion result 2501 of the design object when a command to convert the layout data is given to the design object A. Actually Figure 1
The process is executed by selecting the design object A on the display showing the arrangement of No. 4 and giving the target level of layout to it. Functional description 240
6 is executed according to the design procedure set in 2407. First, the function description 2406 (250
For 2), the logic synthesis tool A is operated under the condition that the area is minimized. This produces the logic diagram 2503. Next, the layout data 2504 is generated by causing the automatic layout generation tool B to operate on the logic diagram data 2503 under the condition that the wiring of the clock line is preferentially performed.

As described above, designing can be performed without paying attention to circuit data during designing, simply by selecting components, giving parameters for realizing desired functions, and setting final goals. Is possible. The generated data is circuit data that satisfies the desired performance by reusing the optimum design procedure.

[0098]

As described above, according to the present invention, it is possible to realize design automation from the functional design stage by reusing existing design data. Furthermore, it is possible to realize reduction of man-hours for functional design, which was difficult in the past.

Since each part has information on the optimum design procedure, each CAD tool can be operated optimally for each part.
It becomes possible to design with high quality.

[Brief description of drawings]

1A and 1B are diagrams showing a configuration of an LSI automatic design system according to an embodiment of the present invention, in which FIG. 1A is a configuration diagram of a functional design device portion, and FIG. 1B is a configuration diagram of a design data conversion device portion. Is.

FIG. 2 is a hardware configuration diagram of the LSI automatic design system of FIGS. 1A and 1B.

FIG. 3 is an internal configuration diagram of a storage device in FIG.

FIG. 4 is a process flow diagram of the LSI automatic design system of FIGS. 1 (a) and 1 (b).

5 is a detailed configuration diagram of circuit configuration input means in FIG.

FIG. 6 is a detailed flowchart of the circuit configuration input process in FIG.

FIG. 7 is a detailed flowchart of the parts specialization process in FIG.

FIG. 8 is a detailed flowchart of the component combining process in FIG.

FIG. 9 is a diagram for explaining a component registration method in a library component storage unit in the LSI automatic design system of FIGS. 1A and 1B.

FIG. 10 is a detailed flowchart of the conversion instruction delivery processing in FIG.

FIG. 11 is a process flow diagram of the design data conversion device of FIG.

FIG. 12 is a detailed configuration diagram of a library component specializing means in FIG.

FIG. 13 is a flowchart of a component registration process in the library component storage means in the LSI automatic design system of FIGS. 1A and 1B.

FIG. 14 is an explanatory diagram of a component layout design example by the circuit configuration input unit in FIG.

15A and 15B are diagrams showing a configuration of an LSI automatic design device according to another embodiment of the present invention, in which FIG. 15A is a configuration diagram of a functional design device portion, and FIG. 15B is a design data conversion device portion. It is a block diagram.

FIG. 16 is a process flow diagram of the LSI automatic design system of FIGS. 15 (a) and 15 (b).

17 is a detailed flowchart of the circuit configuration input process in FIG.

18 is a detailed flowchart of the design object generation process in FIG.

19 is a detailed flowchart of the design object generation process in FIG. 18 when a plurality of design objects are generated from the same part.

20 is a detailed flowchart of the design procedure execution process in FIG.

21 is a detailed flowchart of the design procedure execution process in steps 2004 and 2005 in FIG.

22 is a detailed flowchart of the composition process of the connection between the design objects in FIG.

FIG. 23 (a) is L of FIG. 15 (a) and FIG. 15 (b).
FIG. 6 is an explanatory diagram of an example of a registered component in a library component storage unit in the SI automatic design system, and FIG. 7B is an explanatory diagram showing an example of a generated design object.

FIG. 24 is an explanatory diagram showing a specific example of generation of a design object in the function design device of FIG.

FIG. 25 is an explanatory diagram showing a specific example of the final design object converted by the design data conversion device of FIG. 15 (b).

[Explanation of symbols]

101 Library Component Storage Means (Component Storage Means) 103 Library Component Circuit Data Storage Unit 104 Library Component Conversion Information Storage Unit 105 Circuit Configuration Input Means (Component Configuration Input Means) 106 Library Component Specialization Means (Design Data Specialization Means) 107 Parts Synthesis means (design data synthesis means) 111 Design data storage means 112 Conversion command input means 113 Conversion command delivery means 114 Conversion method selection means 115 Circuit data conversion means (design data conversion means) 118 Unregistered component conversion information storage section

Claims (23)

[Claims] 1. A component storage unit for collectively managing and registering design data and design procedure information relating to conversion of the design data as a component, and using the design data registered in the component storage unit. A circuit configuration input means for inputting a component configuration for realizing a desired function and information for determining a function to be implemented by each design data designated by the component configuration; and the circuit configuration input means To connect between the design data specializing means for specializing each design data specified in the component configuration and the design data specialized in the design data specializing means according to the function confirmation information input by A design data synthesizing unit for synthesizing design data, design data specialized by the design data specializing unit, and the design data synthesizing unit. A design data storage unit for registering the created design data, a conversion command input unit for inputting a conversion command designating a target level of conversion of the design data, and a conversion of the design data in the component storage unit. For selecting a design procedure for conversion to be applied to each design data in the design data storage means, based on the information of the design procedure regarding the design level and the conversion instruction regarding the target level input by the conversion instruction input means. According to a design method selected by the conversion method selection means and the conversion method selection means, design data conversion for converting each design data in the design data storage means into design data of a target level designated by the conversion instruction. An automatic LSI design system comprising: 2. A circuit designing method for an LSI automatic designing system, wherein a desired function is obtained by using design data which is collectively managed as a component in a component storage means together with information on a design procedure regarding conversion of design data. A circuit configuration input step for inputting a component configuration for realizing the above, and information for determining a function to be implemented by each design data specified by the component configuration, and a function input in the circuit configuration input step According to the confirmation information, a design data specializing step for specializing each design data specified in the component configuration and a design data combining so as to connect between the design data specialized in the design data specializing step are performed. A design data synthesizing step; a design data specialized in the design data specializing step; A design data registration step of registering the design data synthesized in the step in the design data storage means, a conversion instruction input step of inputting a conversion instruction designating a target level of conversion of the design data, and a design in the component storage means A design procedure for conversion to be applied to each design data in the design data storage means is selected based on the design procedure information regarding data conversion and the conversion instruction regarding the target level input in the conversion instruction input step. And a design data conversion step of converting each design data in the design data storage means into design data of a target level designated by the conversion command according to the design procedure selected in the conversion method selection step. And a circuit designing method. 3. A functional design device in an LSI automatic design system, comprising: a component storage means for collectively managing and registering design data and design procedure information relating to conversion of the design data as components. To input a component configuration for implementing a desired function using the design data registered in the component storage means and information for determining a function to be implemented by each design data designated by the component configuration Circuit configuration input means, design data specialization means for specializing each design data specified in the component configuration according to the function confirmation information input by the circuit configuration input means, and the design data specialization means In the design data synthesizing means for synthesizing the design data so as to connect the design data specialized in Has been the design data, the functional design apparatus being characterized in that a design data storage unit for registering the synthesized design data in said design data synthesizing means. 4. The functional design apparatus according to claim 3, wherein the circuit configuration input unit searches for a component registered in the component storage unit and extracts information about design data included in each component. And a used part input means for inputting a part structure necessary for realizing a desired function and selecting necessary information from the information regarding the design data, and the used part Based on the information selected in the input means,
A function designing apparatus comprising: parameter input means for inputting a parameter for determining a function of the design data; and design constraint input means for inputting a design constraint for the design data. 5. The function designing apparatus according to claim 3, wherein the design data specializing means selects the function confirmation information input by the circuit configuration inputting means from the information regarding the design data stored in the component storing means. A function-determined information analysis unit for determining a method for acting on the design data, and a function-determined design by acting the function-determined information on each design data according to the method determined by the function-determined information analysis unit. A function designing device, comprising: a function defining information acting means for generating data. 6. A function design method in an LSI automatic design system, wherein a desired function is realized by using design data collectively managed as a component in a component storage unit together with information on a design procedure regarding conversion of design data. Circuit configuration input step for inputting a component configuration for performing the function and information for determining a function to be realized by each design data designated by the component configuration, and the function determination information input in the circuit configuration input step According to the design data, the design data specializing step for specializing each design data specified in the component structure, and the design data for synthesizing the design data so as to connect between the design data specialized in the design data specializing step A synthesis step, design data specialized in the design data specialization step, and the design data combination Function design method is characterized in that a design data registering step of registering the synthesized design data in step in the design data memory means. 7. The functional design method according to claim 6, wherein the circuit configuration input step searches for a component registered in the component storage unit, and extracts information relating to design data included in each component. A search step, a used part input step of inputting a part configuration necessary for realizing a desired function, and selecting necessary information from the information regarding the design data, and a selection in the used part input step Parameter input step for inputting a parameter for determining the function of the design data, a design constraint input step for inputting a design constraint for the design data, and information for an arrangement position for the design data based on the obtained information. And a circuit configuration information registration step for performing the function designing method. 8. The function designing method according to claim 6, wherein the design data specializing step includes each of the function confirmation information input in the circuit configuration input step from information on design data included in the component storage unit. A function-determined information analysis step for determining a method of acting on the design data, and according to the method determined in the function-determined information analysis step, by acting the function-determined information on each design data, the design data of which the function is determined A function designing step of generating a function defining information acting step. 9. The functional design method according to claim 6, wherein the design data specializing step includes a step of determining whether or not a component designated by the component configuration has a child hierarchical component, and a child hierarchical component. If there is not, a step of generating specialized design data from the design data of the specified part, and if there is a child hierarchical part, from the design data of each of the specified part and all child hierarchical parts of the part And a step of generating specialized design data. 10. The functional design method according to claim 6, wherein the design data specialization step includes a step of obtaining a design data number N to be generated from a component designated by the component configuration; Determining the name of each design data to be generated from the parts, generating the design data specialized for each of the determined names, and until the number of generated design data becomes larger than N. A method of designing a function, comprising: determining whether the number of generated design data is larger than N, so as to repeat the step of determining the name of the design data and the step of generating the design data. . 11. A design data conversion device in an LSI automatic design system, comprising: part storage means for collectively managing and registering design data and information on a design procedure relating to conversion of the design data as parts. Information about the component configuration to realize the desired function,
Design data storage means for storing design data for which functional design is completed, conversion command input means for inputting a conversion command designating a target level of conversion of design data, and design data in the component storage means The design procedure for the conversion to be applied to each design data in the design data storage means is selected based on the information about the design procedure for the conversion and the conversion command regarding the target level input by the conversion instruction input means. And a design for converting each design data in the design data storage unit into design data of a target level designated by the conversion command according to the design procedure selected by the conversion method selection unit. A design data conversion device comprising: a data conversion means. 12. The design data conversion device according to claim 11, wherein when the target component of the conversion command input by the conversion command input unit has a hierarchical structure, the component stored in the design data storage unit. To deliver the conversion command to all the design data so that all the design data forming the target part of the conversion command are converted into the design data of the target level designated by the conversion command based on the configuration information. The design data conversion device further comprising: 13. The design data conversion apparatus according to claim 11, wherein the component storage unit is configured to perform the conversion even if the target component of the conversion instruction input by the conversion instruction input unit is not registered in the component storage unit. The design method for selecting the design procedure for conversion into the design data of the target level designated by the conversion instruction is performed by the conversion method selection means, and the design data of the target level according to the design procedure selected by the conversion method selection means. The design data conversion apparatus further comprises a function of storing information regarding a design procedure for conversion of unregistered design data so that the design data conversion means can perform conversion into the design data. 14. A design data conversion method in an LSI automatic design system, comprising: a conversion command input step of inputting a conversion command designating a target level of conversion of design data; and a batch management as a part in a part storage means together with design data. Based on the information of the design procedure regarding the conversion of the design data registered as described above and the conversion command regarding the target level input in the conversion command input step, the design data together with the information about the component configuration for realizing the desired function. A conversion method selecting step of selecting a design procedure for conversion to be applied to each of the functionally designed design data stored in the storage means, and storing the design data according to the design procedure selected in the conversion method selecting step. Design data of the target level designated by the conversion command for each design data in the means And a design data conversion step for converting into a design data conversion method. 15. The design data conversion method according to claim 14, wherein when the target component of the conversion command input in said conversion command input step has a hierarchical structure, the component stored in said design data storage means. A conversion for delivering the conversion command to all design data so that all the design data forming the target part of the conversion command are converted into design data of the target level designated by the conversion command based on the configuration information. A design data conversion method further comprising an instruction delivery step. 16. The design data conversion method according to claim 14, wherein even if the target component of the conversion command input in said conversion command input step is not registered in said component storage means, it is designated by said conversion command. The conversion of the unregistered design data is performed so that the design procedure for the conversion to the target level design data is selected and the conversion to the target level design data is performed according to the selected design procedure. A design data conversion method, further comprising a step of pre-registering information regarding a design procedure for the purpose in the component storage means. 17. The design data conversion method according to claim 14, wherein the design data conversion step includes a step of determining whether or not the design data of the part designated by the part configuration has child hierarchical design data. When there is no hierarchical design data, a step of applying a design procedure to the design data of the specified part, and when it has child hierarchical design data, the design data of the specified part and all child hierarchical design data of the design data And a step of applying a design procedure to each of the above, and a design data conversion method. 18. A method of generating design data in an LSI automatic design system, comprising: designating a component for which design data is to be generated; determining whether the designated component has a child hierarchical component. , A step of generating design data from the specified part when there is no child hierarchical part, and a design data is generated from each of the specified part and all child hierarchical parts of the part when it has a child hierarchical part And a step of performing a design data generation method. 19. The design data generation method according to claim 18, wherein in the design data generation step in the case of having the child layer component, the design data generation method is recurred when the child layer component is further hierarchically designed. A method for generating design data, which comprises the steps of repeatedly repeating the process. 20. A design data generation method for generating a plurality of design data for one component in an LSI automatic design system, the method comprising: determining a design data number N to be generated for one component. Determining the name of each design data to be generated for the part, generating the design data for each of the determined names, until the number of generated design data becomes larger than N. A design data generating method, comprising: determining whether the number of generated design data is larger than N, so as to repeat the step of determining the name of the design data and the step of generating the design data. . 21. A design data specializing device in an LSI automatic design system, comprising: a component storage unit for collectively managing and registering design data and parameters related to the design data as components, and the component storage unit. Parameter input means for inputting the function confirmation information for setting the value of the parameter so as to confirm the function to be realized by the design data registered in Designing the function defining information according to a function defining information analyzing unit for determining a method of applying the function defining information input by the parameter inputting unit to design data, and a method determined by the function defining information analyzing unit. Function confirmation information to generate design data whose function is fixed by acting on the data. Means a design data specialized apparatus being characterized in that a design data storage unit for registering the design data generated by the function determination information effectors. 22. A design data specialization method in an LSI automatic design system, wherein a parameter value relating to the design data is set so as to determine a function to be realized by the design data registered in the component storage means. A parameter input step of inputting function confirmation information, and a function determination information analysis step of determining a method of applying the function determination information input in the parameter input step to design data from information on design data provided in the component storage means. And a function-determined-information acting step of generating design data having a fixed function by causing the function-determined information to act on the design data according to the method determined in the function-determined information analysis step. Design data specialization method. 23. A hierarchical component registration method based on the function of a component in an LSI automatic design system, the step of designating a component to be registered in a component storage means, and the function of the designated component and registration completion. Determining the name of the specified part based on the relationship with the function of the part; and determining the registration position of the specified part based on the relationship between the function of the specified part and the function of the registered part. A component registration method comprising: a determining step; and a step of registering the designated component at the determined registration position in the component storage means using the determined name. .