| Presentation | 2021-03-26 Non Stop Processor with Non Volatile Element Shota Nakabeppu, Nao Sugiyama, Nobuyuki Yamasaki, Kenta Suzuki, Keizo Hiraga, Yasuo Kanda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, embedded systems such as wearable devices and robots have become widespread. Wear-able devices often use energy harvesting, such as solar photovolatic power generation, as the main power source. However, since the power supply is unstable, the power supply may be lost and restored frequently. On the otherhand, in robots, strong vibration may cause poor contact of connectors, resulting in a temporary voltage drop. Inthis way, various power supply troubles may occur in embedded systems. Therefore, the state immediately beforethe power supply loss should be restored in a shorter time after the power is restored. In this paper, we design anon-stop processor that can create and restore backups in clock cycle units using non-volatile elements. By creatinga backup on the non-volatile element, the operation can be resumed promptly even if a power supply trouble occurs. Assuming a situation where power supply troubles occur frequently, the backup is created in clock cycle units, theoperation is guaranteed even if the power is turned off during backup creation, and the consistency of the memorysystem after backup restoration is guaranteed. The evaluation shows that the non-stop processor can restore thestate at the time when the backup was created, and the stored bit reduces the number of backup creations for thepurpose of guaranteeing the consistency of the memory system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Non Volatile Flip Flop / Non Volatile Memory / Embedded System / Real-time System / Computer Architecture |
| Paper # | CPSY2020-66,DC2020-96 |
| Date of Issue | 2021-03-18 (CPSY, DC) |
| Conference Information | |
| Committee | CPSY / DC / IPSJ-SLDM / IPSJ-EMB / IPSJ-ARC |
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| Conference Date | 2021/3/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | ETNET2021 |
| Chair | Hidetsugu Irie(Univ. of Tokyo) / Hiroshi Takahashi(Ehime Univ.) / Yuichi Nakamura(NEC) / / Hiroshi Inoue(Kyushu Univ.) |
| Vice Chair | Michihiro Koibuchi(NII) / Kota Nakajima(Fujitsu Lab.) / Tatsuhiro Tsuchiya(Osaka Univ.) |
| Secretary | Michihiro Koibuchi(Univ. of Tokyo) / Kota Nakajima(Nagoya Inst. of Tech.) / Tatsuhiro Tsuchiya(Nihon Univ.) / (Chiba Univ.) / (Tokyo City Univ.) / (Kochi Univ. of Tech.) |
| Assistant | Shugo Ogawa(Hitachi) / Eiji Arima(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Computer Systems / Technical Committee on Dependable Computing / Special Interest Group on System and LSI Design Methodology / Special Interest Group on Embedded Systems / Special Interest Group on System Architecture |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Non Stop Processor with Non Volatile Element |
| Sub Title (in English) | |
| Keyword(1) | Non Volatile Flip Flop |
| Keyword(2) | Non Volatile Memory |
| Keyword(3) | Embedded System |
| Keyword(4) | Real-time System |
| Keyword(5) | Computer Architecture |
| 1st Author's Name | Shota Nakabeppu |
| 1st Author's Affiliation | Keio University(Keio Univ.) |
| 2nd Author's Name | Nao Sugiyama |
| 2nd Author's Affiliation | Keio University(Keio Univ.) |
| 3rd Author's Name | Nobuyuki Yamasaki |
| 3rd Author's Affiliation | Keio University(Keio Univ.) |
| 4th Author's Name | Kenta Suzuki |
| 4th Author's Affiliation | Sony Semiconductor Solutions Corporation(Sony Semiconductor Solutions) |
| 5th Author's Name | Keizo Hiraga |
| 5th Author's Affiliation | Sony Semiconductor Solutions Corporation(Sony Semiconductor Solutions) |
| 6th Author's Name | Yasuo Kanda |
| 6th Author's Affiliation | Sony Semiconductor Solutions Corporation(Sony Semiconductor Solutions) |
| Date | 2021-03-26 |
| Paper # | CPSY2020-66,DC2020-96 |
| Volume (vol) | vol.120 |
| Number (no) | CPSY-435,DC-436 |
| Page | pp.pp.97-102(CPSY), pp.97-102(DC), |
| #Pages | 6 |
| Date of Issue | 2021-03-18 (CPSY, DC) |