JPH05159020A - Design information display device for integrated circuit - Google Patents

Abstract

PURPOSE:To display the wirings or the signal lines of an output source and an input destination to an optional signal line or wiring so that they can easily be distinguished from other lines. CONSTITUTION:This device is provided with an input means which can input an operation command, a storage means storing design information on an equivalent circuit diagram 7 and a wiring arrangement diagram 8 and control program information on a whole device, a picture display means and a control means processing design information based on the operation command and displaying a display picture 6. The control means simultaneously displays an arbitrary part in the equivalent circuit diagram 7 and the part of the writing arrangement diagram 8 corresponding to the part so that they can mutually be referred to. When the arbitrary signal line 10 is designated, a wiring 13 corresponding to a designated signal line 10, a wiring 12 corresponding to the signal line 9 of the output source of the designated signal line 10 and a wiring 14 corresponding to the signal line 11 of the input destination of the designated signal line 10 are displayed by making them different from the display of the other wirings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a design information display device for integrated circuits.

[0002]

2. Description of the Related Art In recent years, when designing an integrated circuit, all the designs such as logic design and layout design have been performed by displaying them on a CRT display of a computer. The design information includes equivalent circuit data regarding the equivalent circuit diagram and wiring layout data regarding the layout diagram, and these data are displayed as a diagram on the CRT display and are used for design verification and failure solving.

Conventionally, as shown in FIG. 6, a display screen 2
No. 1 in the equivalent circuit diagram 22 (for example, 1
If 0) is specified, the corresponding wiring (for example, 13) on the layout drawing 23 is highlighted or the display color is changed, or conversely, if any wiring (for example, 13) is specified on the layout drawing 23, it becomes equivalent. There is known a design information display device capable of mutually referring to a pair of signal lines and wirings such that a corresponding signal line (for example, 10) on the circuit diagram 22 is highlighted or a display color is changed. There is.

[0004]

However, in the conventional device described above, only one wiring can be distinguished from other wirings in the layout diagram, and the wiring is output from which circuit and which circuit is input. The relationship between before and after was unclear. Especially when comparing with an image in which only the uppermost layer wiring such as an electron microscope can be seen in design verification or failure solving, if the layout diagram also shows only the uppermost layer wiring, wiring connection The relationship was even more unknown. Therefore, it has been very difficult to trace a signal in design verification and failure resolution.

Therefore, the present invention provides a design information display device capable of displaying an output source and an input destination wiring or signal line for any signal line or wiring so that they can be easily distinguished from other lines. The purpose is to

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1 is a design information display device of an integrated circuit, comprising an input means (1) capable of inputting an operation command from the outside. Storage means (3, 4) for storing design information of the integrated circuit including equivalent circuit information regarding the equivalent circuit diagram (7) and wiring arrangement information regarding the wiring arrangement diagram (8), and control program information for the entire apparatus. Image display means (5) for displaying an image, and based on the operation command, the integrated circuit design information stored in the storage means is processed to display an image related to the integrated circuit design on the image display means (5). In a design information display device (100) for an integrated circuit, the control means (2) for controlling to display on the display device, and the control means (2) is an arbitrary part of the equivalent circuit diagram (7). , Any part concerned The corresponding wiring layout diagram (8) and the corresponding portion of the wiring layout diagram (8) are simultaneously displayed on the image display means (5) so that they can be referred to each other, and the arbitrary signal line (10) on the equivalent circuit diagram (7) is When designated by the input means (1), the wiring (13) corresponding to the designated designated signal line (10) and the wiring corresponding to the output source signal line (9) of the designated signal line (10). (12) and the wiring (1 corresponding to the signal line (11) to which the designated signal line (10) is input.
Each display of 4) is configured to be displayed on the image display means (5) differently from the display of other wirings.

According to a second aspect of the present invention, there is provided a design information display device for an integrated circuit, comprising input means (1) capable of inputting an operation command from the outside, and equivalent circuit information on an equivalent circuit diagram (7). Storage means (3, 4) for storing design information of the integrated circuit including wiring arrangement information regarding the wiring arrangement diagram (8) and control program information of the entire apparatus, and image display means (5) for displaying an image, A control means (2) for controlling the integrated circuit design information stored in the storage means based on the operation command to display an image related to the integrated circuit design on the image display means (5); ,
In a design information display device (100) for an integrated circuit, the control means (2) includes an arbitrary portion of the equivalent circuit diagram (7) and a wiring layout diagram (8) corresponding to the arbitrary portion. And are simultaneously displayed on the image display means (5) so that they can be referred to each other, and an arbitrary wiring (13) on the wiring layout diagram (8) is designated by the input means (1). , The signal line (10) corresponding to the specified designated wiring (13) and the signal line (19) corresponding to the output source wiring (12) of the designated wiring (13) and the input of the designated wiring (13) The signal line (1 corresponding to the previous wiring (14)
Each display of 1) is configured to be displayed on the image display means (5) differently from the display of other signal lines.

[0008]

According to the invention of claim 1 having the above structure, when an arbitrary signal line (10) to be traced is specified in the circuit diagram (7), the signal is displayed in the wiring layout diagram (8). The wiring (13) corresponding to the line (10), the wiring (12) corresponding to the signal line (9) connected to the circuit that is the output source of the signal line (10), and the input destination of the signal line (10) The wiring (14) corresponding to the signal line (11) connected to the circuit is displayed differently from the other wirings. For example, when the other wiring is displayed in a single color, the above-mentioned wiring to be traced (13), output source wiring (12), and input destination wiring (1
Each of 4) is highlighted in a different color.

According to the invention described in claim 2, contrary to the invention described in claim 1, when an arbitrary wiring (13) to be traced is designated in the wiring layout diagram (17), it is equivalent. The signal line (10) corresponding to the wiring (13) in the circuit diagram (16), the signal line (9) connected to the circuit that is the output source of the signal line (10), and the signal line (10) The signal line (11) connected to the circuit as the input destination is displayed differently from the other signal lines. For example, when another signal line is displayed in a single color, the signal line (10) to be traced, the output source signal line (9), and the input destination signal line (11) are highlighted in different colors. Etc.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of an embodiment of the present invention. As shown in FIG. 1, this integrated circuit design information display device 10
Reference numeral 0 denotes an input unit 1 which is an input unit for inputting an operation command to the apparatus 100 from the outside, and a control unit which controls the operation of the entire apparatus 100 based on the operation command input to the input unit 1. The computer 2 includes a data memory 4 that stores design information of the integrated circuit, a program memory 3 that stores a control program of the computer 2, and an image display unit 5 that displays the design information as an image. Here, the data memory 4 and the program memory 3 constitute a storage means.

Next, the operation of this apparatus will be described with reference to FIGS.
Will be explained. 2 is an operation flowchart of the present invention, and FIG. 3 is a diagram showing an example of a display screen. First,
On the display screen 6 shown in FIG. 3, an equivalent circuit diagram 7 and a layout diagram 8 which is a wiring layout diagram are displayed so that they can be referred to each other at the same time. In this case, the drawing color of both the equivalent circuit diagram and the layout diagram is set to, for example, blue on the first screen. Next, the designer operates the input unit 1 to specify an arbitrary signal line (for example, the signal line 10) to be traced on the equivalent circuit diagram 7. By this operation, the determination is made in step S1 of FIG. 2 and the process proceeds to step S2. This allows
The designated signal line 10 is displayed in white so as to be different from other signal lines (for example, the signal lines 9 and 11) (step S2).

Next, in step S3, the wiring 13 corresponding to the designated signal line 10 in the layout diagram 8 is displayed in white (step S3). By this operation, the wiring 13 on the layout diagram 8 becomes the signal line 1 on the equivalent circuit diagram 7.
You can see at a glance that it corresponds to 0.

Next, in step 6, the signal line (for example, the signal line 9) connected to the circuit which is the output source of the designated signal line 10 is automatically searched and the layout corresponding to this signal line 9 is searched. The wiring (for example, the wiring 12) in FIG. 8 is also automatically searched, and the image display unit 5 is controlled so that the wiring 12 is displayed in yellow differently from the wiring 13 and different from the other wirings (step S6). ). In this case, if the yellow color is defined as the “output source wiring”, the designer can check the wiring on the layout diagram 8 at a glance.

Next, in step 7, the signal line (for example, the signal line 11) connected to the circuit to which the designated signal line 10 is input is automatically searched, and the layout diagram corresponding to this signal line 11 is searched. 8 (for example, the wiring 14) is also automatically searched, and this wiring 14 is displayed in red so as to be different from the wiring 13, the wiring 12, and the other wirings (step S7). Also in this case, if the red color is defined as the “input destination wiring”, the designer can check the wiring on the layout diagram 8 at a glance.

By displaying in this manner, the wiring corresponding to the designated signal line and the wirings corresponding to the signal lines on the input side and the output side thereof can be easily distinguished on the screen for the designer. Can be displayed.

Next, another embodiment of the present invention will be described with reference to the drawings. The structure of this embodiment is similar to that of the embodiment shown in FIG. Next, the operation of this device will be described with reference to FIGS. First, the display screen 15 shown in FIG.
In FIG. 16, the equivalent circuit diagram 16 and the layout diagram 17, which is a wiring layout diagram, are displayed so that they can be referenced at the same time. In this case, on the first screen, the equivalent circuit diagram,
For example, the drawing color is set to blue in both the layout diagram. Next, the designer operates the input unit 1 to specify an arbitrary wiring (for example, the wiring 13) to be traced on the layout diagram 17. By this operation, it is determined in step S1 of FIG. 2 and the process proceeds to step S4. As a result, the designated wiring 13 is displayed in white so as to be different from the other wirings (for example, the wirings 12 and 14) (step S4).

Next, in step S5, the equivalent circuit diagram 1
In 6, the signal line 10 corresponding to the designated wiring 13 is displayed in white (step S5). By this operation, it can be confirmed at a glance that the signal line 10 on the equivalent circuit diagram 16 corresponds to the wiring 13 on the layout diagram 17.

Next, in step 6, the wiring (for example, the wiring 12) connected to the circuit which is the output source of the designated wiring 13 is automatically searched, and the equivalent circuit diagram 16 corresponding to this wiring 12 is shown in FIG. Signal lines (for example, the signal line 9) are automatically searched, and the image display unit 5 is controlled so that the signal line 9 is displayed in yellow differently from the signal line 10 and different from the other signal lines. (Step S6). In this case, by defining yellow as the “output source signal line”, the designer can check the signal line on the equivalent circuit diagram 16 at a glance.

Next, in step 7, the designated wiring 1
The wiring connected to the circuit which is the input destination of 3 (for example, wiring 1
4) is automatically searched, and the signal line (for example, the signal line 11) on the equivalent circuit diagram 16 corresponding to the wiring 14 is automatically searched. It is displayed in red so as to be different from the signal line of (step S7). Also in this case, if the red color is defined as the “input destination signal line”, the designer can check the signal line on the equivalent circuit diagram 16 at a glance.

By displaying in this way, the signal line corresponding to the designated wiring and the signal lines corresponding to the input side and output side wirings can be easily distinguished on the screen for the designer. Can be displayed.

In the above embodiment, when the signal line or wiring to be traced is designated in either the equivalent circuit diagram or the layout diagram, the designated line is displayed differently from the other lines. The example in which the corresponding line on the other diagram and the lines on the input side and the output side thereof are similarly displayed differently from the others has been described. This may be other embodiments as described below.

That is, as shown in FIG. 5, for example, when an arbitrary signal line 10 is designated on the equivalent circuit diagram 19, the designated signal line 10 is automatically displayed in white and the signal line of the input example is displayed. 9 is displayed in yellow, and the signal line 11 on the output side is displayed in red. At the same time, on the layout diagram 20, the wiring 13 corresponding to the designated signal line is displayed in white, the wiring 12 on the input side is displayed in yellow, and the wiring 14 on the output side is displayed in red. Also,
Conversely, for example, when the wiring 13 on the layout diagram 20 is designated, the designated wiring 13 is automatically displayed in white, the wiring 12 of the input example is displayed in yellow, and the wiring 14 on the output side is red. Is displayed. At the same time, on the equivalent circuit diagram 19, the signal line 10 corresponding to the designated wiring 13 is displayed in white, the signal line 11 on the input side is displayed in yellow, and the signal line on the output side is displayed in red. ..

Further, in the above embodiment, an example in which the designated signal line or wiring and the wiring or signal line on the input / output side thereof are displayed in different colors from the other lines has been described. The invention is not limited to this, and other types of highlighting may be performed. For example, the designated signal line or wiring and the wiring or signal line corresponding thereto may be displayed in a blinking manner, the input side line may have a hatch pattern, and the output side line may have a double hatch pattern.
Alternatively, black-and-white inversion or the like may be used.

[0024]

As described above, according to the present invention,
By changing the display color of the output source and input destination wiring or signal line for any wiring or wiring and displaying it differently from other lines, it can be easily distinguished from other lines. Therefore, there is an advantage that signals can be easily tracked.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the present invention.

FIG. 3 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 4 is a diagram for explaining the operation of another embodiment of the present invention.

FIG. 5 is a diagram for explaining the operation of another embodiment of the present invention.

FIG. 6 is a diagram illustrating an operation of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Input part 2 ... Computer 3 ... Program memory 4 ... Data memory 5 ... Image display part 6, 15, 18, 21 ... Display screen 7, 16, 19, 22 ... Equivalent circuit diagram 8, 17, 20, 23 ... Layout 9 to 11 ... Wiring 12 to 14 ... Wiring S1 to S7 ... Step

Claims (2)

[Claims] 1. A design information display device for an integrated circuit, comprising input means (1) capable of inputting an operation command from the outside, equivalent circuit information regarding an equivalent circuit diagram (7), and wiring regarding a wiring layout diagram (8). Storage means (3, 4) for storing design information of the integrated circuit including arrangement information and control program information of the entire apparatus, image display means (5) for displaying an image, and the storage based on the operation command. Designing an integrated circuit comprising: control means (2) for processing the design information of the integrated circuit stored in the means to display an image relating to the design of the integrated circuit on the image display means (5). In the information display device (100), the control means (2) displays the arbitrary portion of the equivalent circuit diagram (7) and a portion of the wiring layout diagram (8) corresponding to the arbitrary portion as the image. On display means (5) Each other are displayed at the same time allow reference to the equivalent circuit diagram (7)
When the arbitrary signal line (10) above is designated by the input means (1), the designated signal line (10) designated.
Corresponding to the wiring (13) corresponding to the wiring and the wiring (12) corresponding to the output source signal line (9) of the designated signal line (10) and the input destination signal line (11) of the designated signal line (10) A design information display device for an integrated circuit, wherein the display of each wiring (14) is controlled to be displayed on the image display means (5) differently from the display of the other wiring. 2. A design information display device for an integrated circuit, comprising input means (1) capable of inputting an operation command from the outside, equivalent circuit information regarding an equivalent circuit diagram (7), and wiring regarding a wiring layout diagram (8). Storage means (3, 4) for storing design information of the integrated circuit including arrangement information and control program information of the entire apparatus, image display means (5) for displaying an image, and the storage based on the operation command. Designing an integrated circuit comprising: control means (2) for processing the design information of the integrated circuit stored in the means to display an image relating to the design of the integrated circuit on the image display means (5). In the information display device (100), the control means (2) displays an arbitrary part of the equivalent circuit diagram (7) and a wiring layout diagram (8) corresponding to the arbitrary part in the image display means (100). 5) on top of each other When the arbitrary wirings (13) on the wiring layout diagram (8) are designated by the input means (1) so that they can be displayed simultaneously so that they can be illuminated, they correspond to the designated designated wirings (13). The signal line (10) and the signal line (9) corresponding to the output source wiring (12) of the designated wiring (13) and the signal line (1 corresponding to the input destination wiring (14) of the designated wiring (13).
A design information display device for an integrated circuit, characterized in that each display of 1) is controlled to be displayed on the image display means (5) differently from the display of other signal lines.