半导体学报2008，Vol.29Issue(4)：724-732,9.
基于一种新的时空编码技术的片上总线的低延迟低能耗设计
Delay and Energy Efficient Design of an On-Chip Bus with Repeaters Using a New Spatial and Temporal Encoding Technique
张庆利 1王进祥 1喻明艳 1叶以正1
作者信息
- 1. 哈尔滨工业大学微电子中心,哈尔滨,150001
- 折叠
摘要
Abstract
On-chip global buses in deep sub-micron designs consume significant amounts of energy and have large propagation delays. Thus, minimizing energy dissipation and propagation delay is an important design objective. In this paper, we propose a new spatial and temporal encoding approach for generic on-chip global buses with repeaters that enables higher performance while reducing peak energy and average energy. The proposed encoding approach exploits the benefits of a temporal encoding circuit and spatial bus-invert coding techniques to simultaneously eliminate opposite transitions on adjacent wires and reduce the number of self-transitions and coupling-transitions. In the design process of applying encoding techniques for reduced bus delay and energy, we present a repeater insertion design methodology to determine the repeater size and inter-repeater bus length,which minimizes the total bus energy dissipation while satisfying target delay and slewrate constraints. This methodology is employed to obtain optimal energy versus delay trade-offs under slew-rate constraints for various encoding techniques.关键词
片上总线/延时/能量有效/编码/中继驱动器Key words
on-chip buses/ delay/ energy/ encoding/ repeaters分类
信息技术与安全科学引用本文复制引用
张庆利,王进祥,喻明艳,叶以正..基于一种新的时空编码技术的片上总线的低延迟低能耗设计[J].半导体学报,2008,29(4):724-732,9.
