Presentation | 2004/8/12 Dynamic CAM based on One-Hot-Spot Block Code for Use in Network Router Satoru HANZAWA, Takeshi SAKATA, Kazuhiko KAJIGAYA, Riichiro TAKEMURA, Takayuki KAWAHARA, |
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PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | With the aim of realizing large-scale and low-power CAMs for million-entry lookup in a network router, the authors have devised a one-hot-spot block code and developed three circuit techniques. The proposed code enables one word to store wider range of IP addresses than before and reduces the entry count to 48% on average. The first and second techniques, a hierarchical match-line structure and an on-chip entry compression/extraction scheme, can use the proposed code in our new CAM. The third technique, a search-depth control scheme, restricts activating unneeded search lines and reduces power consumption to 55%. The simulated waveforms show that the proposed CAM, using commodity DRAM technologies, performs a search operation within 6 ns. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | CAM / Content Addressable Memory / Associative Memory / TCAM / Ternary CAM |
Paper # | SDM2004-120,ICD2004-62 |
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Conference Information | |
Committee | ICD |
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Conference Date | 2004/8/12(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Integrated Circuits and Devices (ICD) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Dynamic CAM based on One-Hot-Spot Block Code for Use in Network Router |
Sub Title (in English) | |
Keyword(1) | CAM |
Keyword(2) | Content Addressable Memory |
Keyword(3) | Associative Memory |
Keyword(4) | TCAM |
Keyword(5) | Ternary CAM |
1st Author's Name | Satoru HANZAWA |
1st Author's Affiliation | Central Research Laboratory, Hitachi, Ltd.,() |
2nd Author's Name | Takeshi SAKATA |
2nd Author's Affiliation | Research & Development Group, Hitachi, Ltd., |
3rd Author's Name | Kazuhiko KAJIGAYA |
3rd Author's Affiliation | Elpida Memory, Inc., |
4th Author's Name | Riichiro TAKEMURA |
4th Author's Affiliation | Central Research Laboratory, Hitachi, Ltd., |
5th Author's Name | Takayuki KAWAHARA |
5th Author's Affiliation | Central Research Laboratory, Hitachi, Ltd., |
Date | 2004/8/12 |
Paper # | SDM2004-120,ICD2004-62 |
Volume (vol) | vol.104 |
Number (no) | 250 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |