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JSSC 2007第6期Other

Surfing Pipelines: Theory and Implementation

Surfing技术是一种无锁存的流水线技术,通过调制门和逻辑功能的传播延迟来减少时序不确定性。
无锁存流水线事件吸引器时序不确定性计算波芯片设计
创新点1:无锁存流水线技术(方法创新) - 提出了一种无需传统锁存器的流水线技术,通过调制门电路和其他逻辑功能的传播延迟来生成事件吸引器,显著简化了电路结构并提高了时序效率。
创新点2:事件吸引器减少时序不确定性(电路创新) - 利用事件吸引器动态调整时序事件,使数据路径中的事件与时序事件同步,有效降低了时序不确定性,提升了流水线的稳定性和可靠性。
创新点3:支持独立计算波(系统创新) - 实现了两个独立计算波的并行处理,仅通过冲浪效应分离,无需额外的锁存器或存储元件,展示了高并发的计算能力。
创新点4:长时间无错误运行(性能创新) - 芯片在连续运行48小时以上且处理超过50/49/48/49/53次冲浪事件后未出现任何错误,验证了技术的鲁棒性和稳定性。
Abstract
Surfing is a latchless pipelining technique where the propagation delays of gates and other logic functions are modu- lated to produce event attractors. Timing events are propagated along the pipeline and events in the data path are attracted to coin- cide with the timing events. These attractors reduce timing uncer- tainties and can reduce the delays of the pipeline. We demonstrate surfing by the design, fabrication, and test of a chip. The surfing ring in this chip supports two independent waves of computation separated only by the surfing effect—no latches or other storage el- ements are used. We operated the ring for over 48 h and /50 /49/48/49/53 surfing events and never observed an error.