CN107527653A - 演算n搜寻/m写入的三元内容可寻址内存(tcam) - Google Patents
演算n搜寻/m写入的三元内容可寻址内存(tcam) Download PDFInfo
- Publication number
- CN107527653A CN107527653A CN201710457931.8A CN201710457931A CN107527653A CN 107527653 A CN107527653 A CN 107527653A CN 201710457931 A CN201710457931 A CN 201710457931A CN 107527653 A CN107527653 A CN 107527653A
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- cam
- row
- search
- write
- matrix
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- 239000011159 matrix material Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 14
- 230000003362 replicative effect Effects 0.000 claims 1
- 238000004364 calculation method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000003491 array Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C15/00—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C15/00—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
- G11C15/04—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores using semiconductor elements
Landscapes
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Memory System (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/185,956 US9859006B1 (en) | 2016-06-17 | 2016-06-17 | Algorithmic N search/M write ternary content addressable memory (TCAM) |
US15/185,956 | 2016-06-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107527653A true CN107527653A (zh) | 2017-12-29 |
CN107527653B CN107527653B (zh) | 2021-03-12 |
Family
ID=60481159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710457931.8A Expired - Fee Related CN107527653B (zh) | 2016-06-17 | 2017-06-16 | 演算n搜寻/m写入的三元内容可寻址内存(tcam) |
Country Status (4)
Country | Link |
---|---|
US (1) | US9859006B1 (zh) |
CN (1) | CN107527653B (zh) |
DE (1) | DE102016220328A1 (zh) |
TW (1) | TWI636458B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11133065B1 (en) * | 2020-03-06 | 2021-09-28 | Micron Technology, Inc. | Architecture for ternary content-addressable memory search |
CN112994886B (zh) * | 2021-05-21 | 2021-08-06 | 芯启源(南京)半导体科技有限公司 | 一种用于生成tcam搜索关键字的硬件及实现方法 |
Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1175016B (de) * | 1956-04-06 | 1964-07-30 | Int Computers & Tabulators Ltd | Vorrichtung zum Speichern von Informationen |
US5339268A (en) * | 1992-05-08 | 1994-08-16 | Mitsubishi Denki Kabushiki Kaisha | Content addressable memory cell and content addressable memory circuit for implementing a least recently used algorithm |
US6169685B1 (en) * | 1999-05-17 | 2001-01-02 | Cselt-Centro Studi E Laboratori Telecomuicazioni S.P.A. | Content addressable memories |
US6259620B1 (en) * | 2000-03-08 | 2001-07-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple entry matching in a content addressable memory |
US20020145899A1 (en) * | 2001-04-05 | 2002-10-10 | Fujitsu Limited | Content addressable memory devices determining entry data priority by valid data length |
US6493791B1 (en) * | 1999-12-20 | 2002-12-10 | Intel Corporation | Prioritized content addressable memory |
US20030081442A1 (en) * | 2001-10-31 | 2003-05-01 | Kawasaki Microelectronics, Inc. | Ternary content addressable memory with data and mask data settable therewithin by one write cycle |
CN1439160A (zh) * | 2000-05-01 | 2003-08-27 | 莫塞德技术公司 | 匹配线读出电路及方法 |
US6711665B1 (en) * | 1993-12-12 | 2004-03-23 | Neomagic Israel Ltd. | Associative processor |
CN1716449A (zh) * | 2004-06-30 | 2006-01-04 | 国际商业机器公司 | 用于检测cam阵列中的多次命中的设备和方法 |
US7304873B1 (en) * | 2005-01-25 | 2007-12-04 | Netlogic Microsystems, Inc. | Method for on-the-fly error correction in a content addressable memory (CAM) and device therefor |
CN101546291A (zh) * | 2009-05-12 | 2009-09-30 | 华为技术有限公司 | 提高内存数据健壮性的存取方法和装置 |
CN101937712A (zh) * | 2009-06-30 | 2011-01-05 | 海力士半导体有限公司 | 非易失性存储器件及其操作方法 |
CN102341863A (zh) * | 2009-03-06 | 2012-02-01 | 国际商业机器公司 | 使用相变器件的三元内容可寻址存储器 |
CN102473459A (zh) * | 2009-09-18 | 2012-05-23 | 株式会社东芝 | 半导体相联存储器装置 |
US8908407B1 (en) * | 2011-07-30 | 2014-12-09 | Rambus Inc. | Content addressable memory (“CAM”) |
CN104200838A (zh) * | 2014-08-28 | 2014-12-10 | 平湖凌云信息科技有限公司 | 内容可寻址存储器及相似度智能匹配方法 |
CN104240755A (zh) * | 2013-06-14 | 2014-12-24 | 联发科技股份有限公司 | 二元内容可寻址存储器单元和三元内容可寻址存储器单元 |
CN104778970A (zh) * | 2014-01-10 | 2015-07-15 | 台湾积体电路制造股份有限公司 | 存储单元 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7210003B2 (en) * | 2001-10-31 | 2007-04-24 | Netlogic Microsystems, Inc. | Comparand generation in a content addressable memory |
US7345897B2 (en) * | 2005-10-18 | 2008-03-18 | Cisco Technology, Inc. | Error protected ternary content-addressable memories and lookup operations performed thereon |
US9882809B2 (en) * | 2009-11-24 | 2018-01-30 | Verizon Patent And Licensing Inc. | Just-in time forwarding information base |
US9001828B2 (en) * | 2011-03-21 | 2015-04-07 | Marvell World Trade Ltd. | Method and apparatus for pre-classifying packets |
US9177646B2 (en) * | 2013-05-06 | 2015-11-03 | International Business Machines Corporation | Implementing computational memory from content-addressable memory |
US9255962B2 (en) * | 2013-08-15 | 2016-02-09 | GlobalFoundries, Inc. | Determining intra-die variation of an integrated circuit |
-
2016
- 2016-06-17 US US15/185,956 patent/US9859006B1/en not_active Expired - Fee Related
- 2016-08-22 TW TW105126730A patent/TWI636458B/zh not_active IP Right Cessation
- 2016-10-18 DE DE102016220328.2A patent/DE102016220328A1/de not_active Withdrawn
-
2017
- 2017-06-16 CN CN201710457931.8A patent/CN107527653B/zh not_active Expired - Fee Related
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1175016B (de) * | 1956-04-06 | 1964-07-30 | Int Computers & Tabulators Ltd | Vorrichtung zum Speichern von Informationen |
US5339268A (en) * | 1992-05-08 | 1994-08-16 | Mitsubishi Denki Kabushiki Kaisha | Content addressable memory cell and content addressable memory circuit for implementing a least recently used algorithm |
US6711665B1 (en) * | 1993-12-12 | 2004-03-23 | Neomagic Israel Ltd. | Associative processor |
US6169685B1 (en) * | 1999-05-17 | 2001-01-02 | Cselt-Centro Studi E Laboratori Telecomuicazioni S.P.A. | Content addressable memories |
US6493791B1 (en) * | 1999-12-20 | 2002-12-10 | Intel Corporation | Prioritized content addressable memory |
US6259620B1 (en) * | 2000-03-08 | 2001-07-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple entry matching in a content addressable memory |
CN1439160A (zh) * | 2000-05-01 | 2003-08-27 | 莫塞德技术公司 | 匹配线读出电路及方法 |
US20020145899A1 (en) * | 2001-04-05 | 2002-10-10 | Fujitsu Limited | Content addressable memory devices determining entry data priority by valid data length |
US20030081442A1 (en) * | 2001-10-31 | 2003-05-01 | Kawasaki Microelectronics, Inc. | Ternary content addressable memory with data and mask data settable therewithin by one write cycle |
CN1716449A (zh) * | 2004-06-30 | 2006-01-04 | 国际商业机器公司 | 用于检测cam阵列中的多次命中的设备和方法 |
US7304873B1 (en) * | 2005-01-25 | 2007-12-04 | Netlogic Microsystems, Inc. | Method for on-the-fly error correction in a content addressable memory (CAM) and device therefor |
CN102341863A (zh) * | 2009-03-06 | 2012-02-01 | 国际商业机器公司 | 使用相变器件的三元内容可寻址存储器 |
CN101546291A (zh) * | 2009-05-12 | 2009-09-30 | 华为技术有限公司 | 提高内存数据健壮性的存取方法和装置 |
CN101937712A (zh) * | 2009-06-30 | 2011-01-05 | 海力士半导体有限公司 | 非易失性存储器件及其操作方法 |
CN102473459A (zh) * | 2009-09-18 | 2012-05-23 | 株式会社东芝 | 半导体相联存储器装置 |
US8908407B1 (en) * | 2011-07-30 | 2014-12-09 | Rambus Inc. | Content addressable memory (“CAM”) |
CN104240755A (zh) * | 2013-06-14 | 2014-12-24 | 联发科技股份有限公司 | 二元内容可寻址存储器单元和三元内容可寻址存储器单元 |
CN104778970A (zh) * | 2014-01-10 | 2015-07-15 | 台湾积体电路制造股份有限公司 | 存储单元 |
CN104200838A (zh) * | 2014-08-28 | 2014-12-10 | 平湖凌云信息科技有限公司 | 内容可寻址存储器及相似度智能匹配方法 |
Also Published As
Publication number | Publication date |
---|---|
CN107527653B (zh) | 2021-03-12 |
DE102016220328A1 (de) | 2017-12-21 |
US20170365341A1 (en) | 2017-12-21 |
TWI636458B (zh) | 2018-09-21 |
TW201810272A (zh) | 2018-03-16 |
US9859006B1 (en) | 2018-01-02 |
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Effective date of registration: 20201012 Address after: Singapore City Applicant after: Marvell Asia Pte. Ltd. Address before: Greater Cayman Islands, British Cayman Islands Applicant before: Kawam International Inc. Effective date of registration: 20201012 Address after: Greater Cayman Islands, British Cayman Islands Applicant after: Kawam International Inc. Address before: Hamilton, Bermuda Applicant before: Marvell International Ltd. Effective date of registration: 20201012 Address after: Hamilton, Bermuda Applicant after: Marvell International Ltd. Address before: Greater Cayman Islands, British Cayman Islands Applicant before: GLOBALFOUNDRIES Inc. |
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