| Paper Abstract and Keywords |
| Presentation |
2007-01-26 11:20
Development of pipelined bit-serial single-flux-quantum microprocessors
Masamitsu Tanaka (Nagoya Univ.), Yuki Yamanashi (Yokohama National Univ.), Naoki Irie (Nagoya Univ.), Heejoung Park (Yokohama National Univ.), Shingo Iwasaki (Nagoya Univ.), Kazuhiro Taketomi (Yokohama National Univ.), Akira Fujimaki (Nagoya Univ.), Nobuyuki Yoshikawa (Yokohama National Univ.), Hirotaka Terai (NICT), Shinichi Yorozu (NEC) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
A pipelined single-flux-quantum microprocessor, called CORE1$\beta$ has been designed and its perfect operations have been demonstrated by on-chip high-speed testing. High performance-to-power consumption ratio is achieved in this microprocessor, because bit-serial processing is employed for 16-bit instructions and 8-bit data and the high-throughput nature of single-flux-quantum circuit is utilized. In order to realize a complex pipeline processing effectively, we separated the clock signals for bit operations and instruction execution, and developed several component circuits including a controller designed with use of one-hot encoding, a register file which can be written and read independently, buffers for ease of the timing design. The CORE1$\beta$ is a large-scale circuit made up of over 10,000 junctions. We eliminated the harmful effects due to the large bias current supplying by introducing fully superconductively-shielded cell library and an 8-mm square chip. The designed CORE1β has operated correctly up to 25 GHz and 17 GHz for bit operations of instructions and data, respectively, consuming 3.4 mW powers. The peak performance has been estimated to be 1400 million operations per second (MOPS). |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Superconductive Device / Single-Flux-Quantum Logic / SFQ / Microprocessor / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 106, no. 503, SCE2006-33, pp. 19-24, Jan. 2007. |
| Paper # |
SCE2006-33 |
| Date of Issue |
2007-01-19 (SCE) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
SCE |
| Conference Date |
2007-01-26 - 2007-01-26 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
SRL |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Digital electronics, etc |
| Paper Information |
| Registration To |
SCE |
| Conference Code |
2007-01-SCE |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Development of pipelined bit-serial single-flux-quantum microprocessors |
| Sub Title (in English) |
|
| Keyword(1) |
Superconductive Device |
| Keyword(2) |
Single-Flux-Quantum Logic |
| Keyword(3) |
SFQ |
| Keyword(4) |
Microprocessor |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| 1st Author's Name |
Masamitsu Tanaka |
| 1st Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 2nd Author's Name |
Yuki Yamanashi |
| 2nd Author's Affiliation |
Yokohama National University (Yokohama National Univ.) |
| 3rd Author's Name |
Naoki Irie |
| 3rd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 4th Author's Name |
Heejoung Park |
| 4th Author's Affiliation |
Yokohama National University (Yokohama National Univ.) |
| 5th Author's Name |
Shingo Iwasaki |
| 5th Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 6th Author's Name |
Kazuhiro Taketomi |
| 6th Author's Affiliation |
Yokohama National University (Yokohama National Univ.) |
| 7th Author's Name |
Akira Fujimaki |
| 7th Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 8th Author's Name |
Nobuyuki Yoshikawa |
| 8th Author's Affiliation |
Yokohama National University (Yokohama National Univ.) |
| 9th Author's Name |
Hirotaka Terai |
| 9th Author's Affiliation |
National Institute of Information and Communications Technology (NICT) |
| 10th Author's Name |
Shinichi Yorozu |
| 10th Author's Affiliation |
NEC Corporation (NEC) |
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| Speaker |
Author-1 |
| Date Time |
2007-01-26 11:20:00 |
| Presentation Time |
25 minutes |
| Registration for |
SCE |
| Paper # |
SCE2006-33 |
| Volume (vol) |
vol.106 |
| Number (no) |
no.503 |
| Page |
pp.19-24 |
| #Pages |
6 |
| Date of Issue |
2007-01-19 (SCE) |