摘要
NGN是一种可提供话音、数据和多媒体等业务的综合开放的网络构架,在NGN构建中,实现了与原有网络的互通。为了实现不同采集口的多协议关联、呼叫合成等功能,相应的测试仪表必须提供网卡和E1卡的测试接口。给出E1接口卡的驱动设计,遵循PCI2.2总线规范,实现E1数据的高速2 M、N×64 K模式的高速数据采集。
NGN is a kind of network structure which provide sound,data and muhidedia. The network card and E1 card are necessary in a NGN network tester for multi-protocal association and call instruction synthesizement between different data collectionn point. In this paper, the driving program of E1 data collection card which satisfy the PCI2.2 bus criterion is designed to implement the high-speed 2M, Nx64K mode data collection,
出处
《国外电子元器件》
2008年第4期39-41,44,共4页
International Electronic Elements
关键词
NGN
软交换
驱动设计
HDLC
API
BT8474
next generation network （NGN）
soft switch
driving design
high level data link control
API
BT8474
