Application of SDRAM in Ethernet port of EOS

FENG Bo; XIAO Ding-zhong

doi:10.13756/j.gtxyj.2005.01.012

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Application of SDRAM in Ethernet port of EOS

- Application of SDRAM in Ethernet port of EOS
- Study on Optical communication Issue 1, Pages: 33-35(2005)
- 作者机构：
  
  1. 武汉邮电科学研究院
  2. 武汉邮电科学研究院湖北武汉　430074
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2005.01.012
  CLC： TN915
- Published：2005，
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[1]冯波,肖定中.SDRAM在EOS中以太网口的应用[J].光通信研究,2005(01):33-35.

FENG Bo, XIAO Ding-zhong. Application of SDRAM in Ethernet port of EOS. [J]. (1):33-35(2005)
[1]冯波,肖定中.SDRAM在EOS中以太网口的应用[J].光通信研究,2005(01):33-35. DOI： 10.13756/j.gtxyj.2005.01.012.

FENG Bo, XIAO Ding-zhong. Application of SDRAM in Ethernet port of EOS. [J]. (1):33-35(2005) DOI： 10.13756/j.gtxyj.2005.01.012.

摘要

在EOS（EthernetoverSDH）应用设计中

以太网侧收到的媒体访问控制（MAC）帧要先存储再由成帧器将数据取走。文章介绍了其实现过程

采用同步动态随机存储器（SDRAM）作为片外的存储器

利用SDRAM的特征

发挥其高速、大容量的优点

可确保专用集成电路（ASIC）芯片上缓存面积减少

并可将以太网数据准确映射到SDH传送网中。该设计已在现场可编程门阵列（FPGA）上得到验证

并通过网络分析仪进行了测试。

Abstract

In the design of EOS

the MAC frames received by Ethernet are stored firstly and then removed by eneapsulation engine. This paper describes the realization process in which the SDRAM is used as and off-chip memory.Utilizing the features of SDRAM

especially its advantages of high-speed and large capacity

the buffer area on ASIC chip can be certainly reduced and the Ethernet data can be accurately mapped into the SDH transport network. The design has been verified on FPGA and passed the IP network analyzer test.

关键词

同步动态随机存储器同步数字系列存储器成帧器预充电刷新

Keywords

SDRAMSDHbufferencapsulation engineprechargerefresh

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