Content addressable memory (CAM) device and method for flexible suppression of hit indications
US7565481B1 · kind B1 · utility
2Cited by
16References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2004 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Oct 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C15/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A content addressable memory (CAM) device (200) can provide for suppression of hit indications. Prioritized match indications (212) can be applied in parallel to both an encoding read-only-memory (ROM) (204-1) and suppression data store (206). A suppression data store (206) can output suppression bits (SH0 and SH1) that correspond to each CAM entry. Hit indications can be selectively suppressed according the values of suppression bits (SH0 and SH1). Hit suppression methods for a CAM device are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.