Presentation 1999/5/27
Access optimizer for embedded DRAMs
Seiji Miura, Kazushige Ayukawa, Makoto Toda, Takao Watanabe, Tetsuya Iwamura, Kouichi Hoshi, Jun Sato, Kazumasa Yanagisawa,
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Abstract(in English) Embedded DRAMs will be faced new walls in the future. The first one is the on Chip CPU-DRAM bottleneck. And the second one is the access conflict between DRAM masters. We propose an "access optimizer", an interface module for embedded DRAMs, to overcome these walls. The benchmark analysis shows that the acccess optimizer reduces the L1 cache fill latency by 30% and the chip performance with access conflict by 39%". Test chip, integrated the access optimizer and an 8Mbit DRAM macro, was fabricated.
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Keyword(in English) embedded DRAMs / embedded DRAM interface module / DRAM macro / access conflict
Paper # ICD99-23
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Conference Date 1999/5/27(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Access optimizer for embedded DRAMs
Sub Title (in English)
Keyword(1) embedded DRAMs
Keyword(2) embedded DRAM interface module
Keyword(3) DRAM macro
Keyword(4) access conflict
1st Author's Name Seiji Miura
1st Author's Affiliation Central Research Lab., Hitachi, Ltd()
2nd Author's Name Kazushige Ayukawa
2nd Author's Affiliation Central Research Lab., Hitachi, Ltd
3rd Author's Name Makoto Toda
3rd Author's Affiliation Central Research Lab., Hitachi, Ltd
4th Author's Name Takao Watanabe
4th Author's Affiliation Central Research Lab., Hitachi, Ltd
5th Author's Name Tetsuya Iwamura
5th Author's Affiliation Hitachi ULSI Systems co. Ltd
6th Author's Name Kouichi Hoshi
6th Author's Affiliation Hitachi ULSI Systems co. Ltd
7th Author's Name Jun Sato
7th Author's Affiliation Semiconductor & Integrated Circuit Div., Hitachi, Ltd
8th Author's Name Kazumasa Yanagisawa
8th Author's Affiliation Semiconductor & Integrated Circuit Div., Hitachi, Ltd
Date 1999/5/27
Paper # ICD99-23
Volume (vol) vol.99
Number (no) 93
Page pp.pp.-
#Pages 6
Date of Issue