FPGA实现程控数字交换

FPGA for Programmable Digital Exchange

目前，随着现场可编程门阵列（FPGA）技术的迅速发展和广泛应用，FPGA不仅可以实现一些简单数字逻辑电路的集成，而且可以实现数字系统的集成，即在片系统（SOC）。本文简单介绍数字程控交换的基本原理，提出了用单片FPGA实现数字交换的方法。

At present, with the rapid development and wide application of FIGA, FPGAcan not only realize the integration of some certain simple digital logic circuits, butalso the integration of complete digital systems, that is SOC——System On Chip.The paper outlines the basic principle of programmable digital exchange and givesthe method of how to realize digital exchange by the use of FPGA.