摘要
研究了FPGA连接单元的版图自动生成方法,提出了一种用开关阵列结构实现FPGA连接单元版图的新方法,其主要步骤包括：编程连接的均匀化、交界的开关分配、开关与互连线的对应以及线网分裂的通道布线.该方法的优点是能够将连接单元的任意两条互连线进行编程连接,因而具有很好的灵活性.用该方法实现一个48×48的Wilton连接单元,与人工全定制相比版图面积增大12%~30%,大大缩短了版图的设计时间.
Method of layout auto-generation of intercormection-unit is studied. A new method of realizing the intercormection-unit layout based on switch array is proposed. The steps of the new method include even distribution of programmable connections, switch allocation of intersect, switch-segment mapping and net splitting channel routing. The advantage of the method is its flexibility to realize programmable connection between any two interconnection lines. The layout of a 48 × 48 Wilton intercormection-unit is demonstrated by using the proposed method, although its area is 12 to 30 percent larger, the time consumed is only a few seconds compared to three days by using fully custom method.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
2008年第1期26-32,39,共8页
Journal of Fudan University：Natural Science
基金
上海应用材料科技合作共同计划资助项目(AM0406)
