A High-Density Optically Reconfigurable Gate Array Using Dynamic Method
A High-Density Optically Reconfigurable Gate Array Using Dynamic Method
复制标题
采用动态方法的高密度光学可重构门阵列
DOI：
10.1007/978-3-540-30117-2_28
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
F. Kobayashi
中科院分区：
文献类型：
--
作者：
Minoru Watanabe;F. Kobayashi
提出了一种高密度光学可重构门阵列(ORGA)，以提高现场可编程门阵列(FPGA)的栅密度。然而，与现场可编程门阵列不同的是，有机GA是用外部光学存储器进行光学重新配置的。与现场可编程门阵列一样，传统的ORGA也有许多编程元素。一种编程元件包括：用于检测光学重新配置信号的光电二极管；用于临时存储重新配置位的锁存器、触发器或存储器位；以及一些晶体管。在这些组件中，锁存器、触发器或存储器在典型的VLSI芯片上占据了很大的实现面积；它阻碍了高门密度ORGA的实现。本文提出了一种采用动态方法消除锁存器、触发器和存储器的高密度ORGA结构，并设计了一种具有四个光学可重构逻辑块、五个光学可重构开关矩阵和四个光学可重构I/O块(包括四个I/O位)的有机VLSI芯片。它采用0.35M3-μ金属工艺技术。这项研究还包括一些实验结果。
A high-density optically reconfigurable gate array (ORGA) is proposed to improve the gate density of conventional ORGAs, which are a type of Field Programmable Gate Array (FPGA). However, unlike FPGAs, an ORGA is reconfigured optically with external optical memories. A conventional ORGA has many programming elements, just as FPGAs do. One programming element consists of: a photodiode to detect an optical reconfiguration signal; a latch, a flip-flop or a bit of memory to temporarily store the reconfiguration bit; and some transistors. Among those components, the latch, flip-flop, or memory occupies a large implementation area on a typical VLSI chip; it prevents realization of a high-gate-density ORGA. This paper presents a high-density ORGA structure that eliminates latches, flip-flops, and memory using a dynamic method and a design of an ORGA-VLSI chip with four optically reconfigurable logic blocks, five optically reconfigurable switching matrices, and four optical reconfigurable I/O blocks including four I/O bits. It uses 0.35 μm 3-Metal CMOS process technology. This study also includes some experimental results.