An RSFQ Superconductive Programmable Gate Array
An RSFQ Superconductive Programmable Gate Array
复制标题
RSFQ超导可编程门阵列
DOI：
10.1109/tasc.2007.897387
复制
发表时间：
2007
影响因子：
1.8
通讯作者：
H. van Heerden
中科院分区：
文献类型：
--
作者：
C. Fourie;H. van Heerden
现场可编程门阵列（fpga）允许在现场重新配置电路，这增加了电子系统的灵活性。应用于超导电子，可重新编程性允许系统功能的改变，而无需重新制造电路或拆除低温设置。我们讨论了超导可编程门阵列（SPGA）的相关设计问题，并报道了一个基本的4200结SPGA。SPGA是围绕互连的2输入逻辑块构建的，其中包含4位查找表。讨论了编程帧、地址解码、查找表和开关实现的设计，以及单通量量子（SFQ）传输线的单向性和大尺寸所带来的设计约束。
Field-programmable gate arrays (FPGAs) allow circuit reconfiguration in the field, which adds to the flexibility of electronic systems. Applied to superconductive electronics, reprogrammability allows system functionality to be changed without remanufacturing the circuit or dismantling a cryogenic setup. We discuss the design issues relevant to a superconducting programmable gate array (SPGA), and report an elementary 4200-junction SPGA. The SPGA is built around interconnected 2-input logic blocks which contain 4-bit lookup tables. Designs for the programming frame, address decoding, lookup tables and switch implementations are discussed, together with design constraints imposed by the unidirectional nature and large size of single flux quantum (SFQ) transmission lines.