Method and system for efficient framing on addressed buses
    1.
    发明授权
    Method and system for efficient framing on addressed buses 有权
    在寻址总线上有效框架的方法和系统

    公开(公告)号:US07664898B2

    公开(公告)日:2010-02-16

    申请号:US11345014

    申请日:2006-02-01

    CPC分类号: G06F13/4221

    摘要: A framing mechanism may be provided that enables passing of messages over an addressed bus. This creates a form of information hiding, which passes information by converting an addressed bus interface to a message-based bus interface. Address-based information in a transaction may be replaced with additional information that specifies framing details comprising, for example, a check pattern and length information. The check pattern provides a mechanism for determining whether frame information may be valid. An end device may utilize this length information to determine an actual length of an incoming frame. The combination of the check pattern and the length information may provide a pattern for resynchronizing a data stream when errors are detected. The framing mechanism may operate over existing addressed buses without requiring host side controller hardware modifications and additional host side software driver may be utilized to add the framing information.

    摘要翻译: 可以提供能够通过寻址总线传递消息的成帧机制。 这创建了一种信息隐藏的形式,其通过将寻址的总线接口转换为基于消息的总线接口来传递信息。 可以用附加信息来替换事务中的基于地址的信息,附加信息指定包括例如检查模式和长度信息的框架细节。 检查模式提供用于确定帧信息是否有效的机制。 终端设备可以利用该长度信息来确定进入帧的实际长度。 检查模式和长度信息的组合可以在检测到错误时提供用于重新同步数据流的模式。 成帧机制可以在现有的寻址总线上操作,而不需要主机侧控制器硬件修改,并且可以利用附加的主机端软件驱动器来添加成帧信息。