Content addressable memory with an internally-timed write operation
US6230237A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1998 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Sep 9, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C15/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A content addressable memory with an internally-timed write operation includes a data input for receiving a input word. Coupled to the data input are a plurality of storage registers comprising stored words. Each storage register includes a comparison circuit for comparing the stored word with the input word and producing therefrom a match output indicating a match when the stored word matches the input word, and indicating a miss when the stored word does not match the input word. Coupled to the storage registers is a miss detector for generating a miss signal responsive to each of the match outputs of the storage registers indicating a miss. Coupled to the miss detector is a write cycle circuit for writing the input word to at least one of the storage registers responsive to receiving the miss signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.