Multimedia Accelerator ACE : A Practical Approach for Multimedia Applications

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概要

• 論文の詳細を見る

• In a highly information-oriented society, demands for information appliances are rapidly increasing, and high performance LSIs to meet this demand are being widely developed. In particular, an LSI that has high performance both in control tasks and signal-processing tasks is in high demand. There have been several approaches to address this issue, but they each have their respective strengths and limitations. In this paper a novel approach to solve conventional problems is proposed utilizing a DSP accelerator "ACE" that can be implemented with a general-purpose MCU. It features high programmability so that it can be adapted to various applications. Also it can be realized at low cost by limiting its usage as an accelerator. Moreover, in order to boost the total performance of the MCU-ACE system, independent parallel execution is exploited. In order to reduce the overhead of the transactions between the cores, a double-buffered shared memory and a well thought out simple interface are employed. A software development methodology to improve productivity in multi-processor systems by unifying the development platforms is also proposed. For a fair comparison with various architectures, an instruction set simulator and an instruction scheduler were developed. Using benchmark programs in the audio-voice area with these tools, the new approach performs 53-61% better than the conventional one. Thus the superiority of the proposed approach over conventional approaches is proven.

• 一般社団法人情報処理学会の論文
• 2002-09-15

著者

• IWADE Shuhei

  Osaka Institute of Technology

• ARAKAWA Takahiko

  Renesas Technology

• SATO Hisakazu

  Renesas Technology Corporation

• IWADE Shuhei

  System LSI Development Center,Mitsubishi Electric Corporation

• NAKANISHI CHIKAKO

  System LSI Development Center, Mitsubishi Electric Corporation

• MINEMATSU ISAO

  System LSI Development Center, Mitsubishi Electric Corporation

• SATO HISAKAZU

  System LSI Development Center, Mitsubishi Electric Corporation

• NAKAKIMURA KIYOSHI

  System LSI Development Center, Mitsubishi Electric Corporation

• ARAKAWA TAKAHIKO

  System LSI Development Center, Mitsubishi Electric Corporation

• Minematsu Isao

  System Lsi Development Center Mitsubishi Electric Corporation

• Nakanishi Chikako

  System Lsi Development Center Mitsubishi Electric Corporation

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• Multimedia Accelerator ACE : A Practical Approach for Multimedia Applications

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