非对称GALS系统异步接口设计  

Unsymmetrical interface design in GALS

作　　者：徐阳扬[1] 周端[1] 杨银堂[1] 王青松[1] 廖峰[1] 

机构地区：[1]西安电子科技大学微电子学院,陕西西安710071

出　　处：《西安电子科技大学学报》2007年第2期294-297,共4页Journal of Xidian University

基　　金：国家自然科学基金资助项目(90407016)

摘　　要：设计了一种新型点对点全局异步局部同步方式异步互连接口,采用非对称握手协议进行通讯,并在数据路径上加入异步可控FIFO,比传统的对称式异步接口时间利用率更高,并且能够实现数据的高速连续传输.在0.25μm工艺下,该接口发送和接收的最高频率可以分别达到670 MHz和1.45 GHz.该接口适用于对数据传输有较高要求的片上系统设计.A new point-to-point Global Asynchronous Local Synchronous （GALS） interface is developed. With an unsymmetrical handshake protocol, the communication between the interfaces is realized. And an FIFO is embedded into the datapath of the interfaces. The time utilization of the unsymmetrical interface is more effective than that of traditional symmetrical interfaces. And the interface can achieve high-speed continuous data transmission. Based on the 0.25um CMOS processes, the highest rates of the sender and the receiver can reach 670 MHz and 1.45 GHz respectively. The unsymmetrical interfaces can be applied to the System On Chip（SOC） design of the high-speed data rate.

关 键 词：全局异步局部同步 非对称 同一异步接口 

分 类 号：TN47[电子电信—微电子学与固体电子学]