Design and implementation of control system for superconducting RSFQ circuit  

作　　者：张阔中 HUANG Junying ZHANG Hui TANG Guangming ZHANG Zhimin YE Xiaochun ZHANG Kuozhong;HUANG Junying;ZHANG Hui;TANG Guangming;ZHANG Zhimin;YE Xiaochun(State Key Laboratory of Processors,Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190,P.R.China;University of Chinese Academy of Sciences,Beijing 101408,P.R.China;Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,P.R.China)

机构地区：[1]State Key Laboratory of Processors,Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190,P.R.China [2]University of Chinese Academy of Sciences,Beijing 101408,P.R.China [3]Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,P.R.China

出　　处：《High Technology Letters》2023年第4期335-347,共13页高技术通讯（英文版）

基　　金：the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDA18000000);the National Natural Science Foundation of China(No.61732018,61872335).

摘　　要：The superconducting rapid single flux quantum(RSFQ)integrated circuit is a promising solu-tion for overcoming speed and power bottlenecks in high-performance computing systems in the post-Moore era.This paper presents an architecture designed to improve the speed and power limitations of high-performance computing systems using superconducting technology.Since superconducting microprocessors,which operate at cryogenic temperatures,require support from semiconductor cir-cuits,the proposed design utilizes the von Neumann architecture with a superconducting RSFQ mi-croprocessor,cryogenic semiconductor memory,a room temperature field programmable gate array(FPGA)controller,and a host computer for input/output.Additionally,the paper introduces two key circuit designs:a start/stop controllable superconducting clock generator and an asynchronous communication interface between the RSFQ and semiconductor chips used to implement the control system.Experimental results demonstrate that the proposed design is feasible and effective,provi-ding valuable insights for future superconducting computer systems.

关 键 词：single flux quantum superconducting rapid single flux quantum(RSFQ)circuit superconducting control system clock generator asynchronous communication interface circuit 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]