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尽管监听式虚拟总线方法才刚刚迈出了第一步,监听——目录混合式方案已经成为了嵌入式一致性领域的下一步发展趋势。毫无疑问,嵌入式单芯片集成系统正变得越来越“多软件化”,而且它们在单块芯片上集成的芯片也越来越多。这些变化背后的驱动力是制造工艺在摩尔定律驱使下的进步,这些进步是为了应对缩短产品从产生构想到投放市场的时间所带来的压力、更高的设计复杂性以及通过设计再利用分批逐步地清偿ASIC(applicationspecificintegratedcircuit,专用集成电路)的制造成本。
Although the snoop virtual bus approach has just taken the first step, the snoop-directory hybrid approach has become the next step in the area of embedded conformance. There is no doubt that embedded single-chip integrated systems are becoming more “multi-software” and more and more integrated on a single chip. The driving force behind these changes is the progress made by the manufacturing process driven by Moore’s Law, which addresses the pressure to shorten the time it takes for the product to be produced, put into production, higher design complexity, and design reuse Batch gradually settles the manufacturing costs of ASICs (application-specific integrated circuits).