Method and apparatus for configuring a content-addressable memory (CAM) design as binary CAM or ternary CAM
US8130525B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2009 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | May 8, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for producing a configurable content-addressable memory (CAM) cell design, in which the method includes: inputting the configurable CAM cell design to a computer, the configurable CAM cell design capable of being configured as one of a binary CAM design and a ternary CAM design, depending on connections of a metal overlay; selecting one of a first metal overlay design for the binary CAM design and a second metal overlay design for a ternary CAM design; if the first metal overlay design is selected, then combining the first metal overlay design with the configurable CAM cell design to produce a binary CAM design including two binary CAM cells with a single search port, and outputting the binary CAM design; and if the second metal overlay design is selected, then combining the second metal overly design with the configurable CAM cell design to produce a ternary CAM design including a single ternary CAM cell with two search ports, and outputting the ternary CAM design by the computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.