TITAC-2: an asynchronous 32-bit microprocessor
TITAC-2: an asynchronous 32-bit microprocessor
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TITAC-2：异步 32 位微处理器
DOI：
10.1109/aspdac.1998.669480
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
T. Nanya
中科院分区：
文献类型：
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作者：
A. Takamura;M. Ozawa;Izumi Fukasaku;T. Fujii;Y. Ueno;Masashi Imai;M. Kuwako;T. Nanya
随着线延迟问题在超大规模集成电路芯片设计中占据主导地位，同步系统的性能和可靠性方面的一个基本限制正在显现出来，这些同步系统要求全局时钟分布尽可能少。最坏情况下的延迟不仅受设计和制造工艺的影响，而且还受工作环境的影响，例如电源电压和温度。没有全局时钟的异步系统本质上可以享受：1）平均情况下的性能而不是最坏情况下的性能，2）低功耗，3）易于模块化设计，以及4）时序容错。我们已经设计并实现了一个32位全异步微处理器，TITAC-2，这是最快的和最大的CMOS异步微处理器，有史以来运作。
With the wire-delay problem moving into dominance in VLSI chip design, a fundamental limitation is being revealed in performance and dependability of synchronous systems which require global clock distribution with as little skew as possible. The worst-case delay is influenced not only by design and fabrication process but also by the operating environment, e.g. the power supply voltage and temperature. Asynchronous systems, with no global clock, can intrinsically enjoy: 1) average case performance instead of worst-case performance, 2) low power consumption, 3) ease of modular design, and 4) timing fault tolerance. We have designed and implemented a 32-bit fully asynchronous microprocessor, TITAC-2, which is the fastest and largest CMOS asynchronous microprocessor that has ever been operational.