Method and apparatus for monitoring the status of CAM comparand registers using a free list and a busy list
US6772279B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jan 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99936
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a CAM system (100) may include a comparand register (CMPR) index block (106) for monitoring a status of comparand registers within the CAM blocks (104). A CMPR index block (106) may include a free index register set (120). A free head pointer (122) and a free tail pointer (124) can point to a start and end of a list of free comparand index values stored within a free index register set (120). A CMPR index block (106) may also include a busy index register set (126). A busy head pointer (128) and a busy tail pointer (130) can point to a start and end of a list of busy comparand index values stored within a busy index register set (126).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.