| 摘要: |
| 本文提出了一种基于FPGA的数字交换机的实现方案。方案中利用FPGA对PCM信号进行处理,在FPGA内实现了话路交换、控制接口、时钟信号与信号音产生等主要功能,大大简化了硬件电路,并且较之传统方案具有明显优越的可扩展性。 |
| 关键词: 数字交换系统 现场可编程门阵列 设计 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:August 10, 2004 |
| 基金项目: |
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| A Digital PBX System Based on FPGA |
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| () |
| Abstract: |
| This paper demonstrates a digital PBX system , in which FPGA is used to process the PCM data so that the functions such as switch , control interface, timing and system tone generation can be implemented in FPGA chip. This system is simpler in hardware, and more convenient to expand than traditional anolog PBX systems. |
| Key words: Digital switch system,FPGA,Design, |
