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Existing nonvolatile ternary content-addressable-memory (nvTCAM) suffers from limited word-length (WDL), large write-energy ($E_{W})$ and search-energy ($E_{S})$ , and large cell area (A). This paper develops a 3T1R nvTCAM cell using a single multiple-level cell (MLC)-resistive RAM (ReRAM) device to achieve long WDL, lower $E_{W}$ and $E_{S}$ , and reduced cell area. Two peripheral control schemes...
Ternary content-addressable memory (TCAM) is used in search engines for network and big-data processing [1]–[6]. Nonvolatile TCAM (nvTCAM) was developed to reduce cell area (A), search energy (ES), and standby power beyond what can be achieved using SRAM-based TCAM (sTCAM) [1]–[2]: particularly in applications with long idle times and frequent-search-few-write operations. nvTCAMs were previously designed...
Many big-data (BD) processors reduce power consumption by employing ternary content-addressable-memory (TCAM) [1-2] with pre-stored signature patterns as filters to reduce the amount of data sent for processing in the following stage (i.e., wireless transmission). To further reduce standby power, BD-processors commonly use nonvolatile memory (NVM) to back up the signature patterns of SRAM-based TCAM...
This study proposes an RC-filtered stress-decoupled (RCSD) 4T2R nonvolatile TCAM (nvTCAM) to 1) suppress match-line (ML) leakage current from match cells (IML-M), 2) reduce ML parasitic load (CML), 3) decouple NVM-stress from wordlength (WDL) and IML-MIS. RCSD reduces NVM-stress by 7+x, and achieves a 4+x improvement in speed-WDL-capacity-product. A 128×32b RCSD nvTCAM macro was fabricated using HfO...
Developing parallel programs imposes many debugging challenges on multicore systems. Many researchers were successful to detect parallel faults in background by hardware assistance. However, it is still an urgent issue to reproduce the same faulted circumstance after faults occurred. Tracing the causality between events is a popular solution in current multicore systems, but it is limited by onchip...
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