REGISTRY FOR ELECTRONIC DESIGN AUTOMATION OF INTEGRATED CIRCUITS

• US 20090113369A1
• Filed: 10/31/2007
• Published: 04/30/2009
• Est. Priority Date: 10/31/2007
• Status: Active Grant

• Current Assignee: Cadence Design Systems Incorporated (Cadence Group)
• Original Assignee: Cadence Design Systems Incorporated (Cadence Group)
• Inventors: Lamant, Gilles S.C., Colwell, Regis, Rosek, Timothy, Yurovsky, Alisa
• Granted Patent: US 7,945,890 B2
• Time in Patent Office: Days
• US Class Current: 716/119
• CPC Class Codes: G06F 30/30 Circuit design

Abstract

A method for registering constraints for EDA (Electronic Design Automation) of an IC (Integrated circuit) includes: associating a constraint with values for constraint identification that identify the constraint in an IC design; associating the constraint with values for constraint relationships that relate the constraint to at least one EDA application; saving the constraint identification values and the constraint relationship values in a constraint registry element; and providing an interface to a user for accessing values of the constraint registry element.

Claims

1. A method for registering constraints for Electronic Design Automation (EDA) of an Integrated Circuit (IC), comprising:

associating a constraint with values for constraint identification that identify the constraint in an IC design;

associating the constraint with values for constraint relationships that relate the constraint to at least one EDA application;

saving the constraint identification values and the constraint relationship values in a constraint registry element; and

providing an interface to a user for accessing values of the constraint registry element.

2. A method according to claim 1, wherein the constraint identification values include values for at least one of a name, a description, an image, or a scale.

3. A method according to claim 1, wherein the constraint relationship values include values for at least one of an EDA application, a design object, or a design constraint group.

4. A method according to claim 1, further comprising:

providing an interface to an EDA application developer for editing values in the constraint registry element.

5. A method according to claim 1, further comprising:

providing an interface to an EDA database that stores the IC design for transferring values from the EDA database to the constraint registry element.

6. A method according to claim 1, further comprising:

providing an interface between the user and an EDA database that stores the IC design for editing the IC design while accessing values from the constraint registry element.

7. A method according to claim 1, wherein providing the interface to the user includes organizing a display of constraints according to groupings of constraints and availability of editing by the user.

8. A method according to claim 1, further comprising:

mapping user inputs to values of the constraint registry element and corresponding values of the IC design and displaying mapping results to the user.

9. An apparatus for registering constraints for Electronic Design Automation (EDA) of an Integrated Circuit (IC), comprising:

a storage unit that stores a plurality of constraint registry elements for constraints in an IC design, each constraint registry element including values for constraint identification that identify the constraint in the IC design and constraint relationships that relate the constraint to at least one EDA application; and

a computer for executing computer instructions, wherein the computer includes computer instructions for providing an interface to a user for accessing values of the constraint registry elements.

10. An apparatus according to claim 9, wherein the constraint identification values include values for at least one of a name, a description, an image, or a scale.

11. An apparatus according to claim 9, wherein the constraint relationship values include values for at least one of an EDA application, a design object, or a design constraint group.

12. An apparatus according to claim 9, wherein the computer further includes computer instructions for providing an interface to an EDA application developer for editing values in the constraint registry element.

13. An apparatus according to claim 9, wherein the computer further includes computer instructions for providing an interface to an EDA database that stores the IC design for transferring values from the EDA database to the constraint registry element.

14. An apparatus according to claim 9, wherein the computer further includes computer instructions for providing an interface between the user and an EDA database that stores the IC design for editing the IC design while accessing values from the constraint registry element.

15. An apparatus according to claim 9, wherein providing the interface to the user includes organizing a display of constraints according to groupings of constraints and availability of editing by the user.

16. An apparatus according to claim 9, wherein the computer further includes computer instructions for mapping user inputs to values of the constraint registry element and corresponding values of the IC design and displaying mapping results to the user.

17. An apparatus according to claim 9, wherein the computer includes a processor with memory for executing at least some of the computer instructions.

18. An apparatus according to claim 9, wherein the computer includes circuitry for executing at least some of the computer instructions.

19. A computer-readable medium that stores a computer program for registering constraints for Electronic Design Automation (EDA) of an Integrated Circuit (IC), wherein the computer program includes instructions for:

associating a constraint with values for constraint identification that identify the constraint in an IC design;

associating the constraint with values for constraint relationships that relate the constraint to at least one EDA application;

saving the constraint identification values and the constraint relationship values in a constraint registry element; and

providing an interface to a user for accessing values of the constraint registry element.