IP Library Granted Patent US 8,589,851
Granted Patent B2
US 8,589,851 · App. 12/806,946 · Granted Nov 19, 2013

Intelligent memory system compiler

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Quick Facts
Patent No.
US 8,589,851
App. No.
12/806,946
Granted
Nov 19, 2013
Kind
B2
Abstract

Designing memory subsystems for integrated circuits can be time-consuming and costly task. To reduce development time and costs, an automated system and method for designing and constructing high-speed memory operations is disclosed. The automated system accepts a set of desired memory characteristics and then methodically selects different potential memory system design types and different implementations of each memory system design type. The potential memory system design types may include traditional memory systems, optimized traditional memory systems, intelligent memory systems, and hierarchical memory systems. A selected set of proposed memory systems that meet the specified set of desired memory characteristics is output to a circuit designer. When a circuit designer selects a proposed memory system, the automated system generates a complete memory system design, a model for the memory system, and a test suite for the memory system.

Claims (19)

1. A method of designing a digital memory system, said method comprising:

receiving a set of desired memory system performance characteristics from a circuit designer;

generating a plurality of possible memory designs that meet said desired memory system performance characteristics, at least one of said plurality of possible memory designs comprising

at least one intelligent memory controller, said intelligent memory controller implementing a memory algorithm to select a storage location, and

at least one fundamental memory circuit, said fundamental memory circuit for storing data;

selecting a subset of said plurality of possible memory designs, said subset of said plurality of possible memory designs optimized for a set of optimization parameters; and

outputting said subset of said plurality of possible memory designs.

2. The method of designing a digital memory system as set forth in claim 1 , said method further comprising:

receiving said set of optimization parameters from said circuit designer.

3. The method of designing a digital memory system as set forth in claim 1 wherein generating a plurality of possible memory designs comprises:

enumerating a set of memory design types that may fulfill said set of desired memory system performance characteristics; and

optimizing implementations of said set of memory design types to create said plurality of possible memory designs.

4. The method of designing a digital memory system as set forth in claim 3 wherein said memory design types include traditional memory systems.

5. The method of designing a digital memory system as set forth in claim 3 wherein said memory design types include intelligent memory systems.

6. The method of designing a digital memory system as set forth in claim 3 wherein said memory design types include hierarchical intelligent memory systems.

7. The method of designing a digital memory system as set forth in claim 3 wherein optimizing implementations of said set of memory design types comprises: calling a memory tile optimizer that generates optimized memory modules by combining selected fundamental physical memory modules.

8. The method of designing a digital memory system as set forth in claim 7 wherein said fundamental physical memory modules are obtained from a physical memory compiler.

9. The method of designing a digital memory system as set forth in claim 3 wherein optimizing implementations of said set of memory design types comprises: calling a memory packing optimizer that generates optimized memory modules by packing more than one data item into a data word of a traditional memory module.

10. The method of designing a digital memory system as set forth in claim 9 wherein said traditional memory module is obtained from a physical memory compiler.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR NAME PREVIOUSLY RECORDED AT REEL: 035474 FRAME: 0122. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Apr 24, 2015
From: MEMOIR SYSTEMS LLC
To: CISCO TECHNOLOGY, INC.
Reel/Frame 035497/0188 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2015
From: CISCO TECHNOLOGY, INC.
To: CISCO TECHNOLOGY, INC.
Reel/Frame 035474/0122 →
CHANGE OF NAME Recorded Apr 22, 2015
From: MEMOIR SYSTEMS, INC.
To: MEMOIR SYSTEMS LLC
Reel/Frame 035479/0644 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2010
From: IYER, SUNDAR; JOSHI, SANJEEV; CHUANG, SHANG-TSE
To: MEMOIR SYSTEMS
Reel/Frame 025086/0648 →