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    • 73. 发明授权
    • Semiconductor device, memory device and memory module having digital interface
    • 半导体器件,存储器件和具有数字接口的存储器模块
    • US07856072B2
    • 2010-12-21
    • US12481798
    • 2009-06-10
    • Hideki OsakaYoji NishioSeiji FunabaKazuyoshi Shoji
    • Hideki OsakaYoji NishioSeiji FunabaKazuyoshi Shoji
    • H03K9/00H03B1/00G05F1/10
    • H03K5/082H03K5/135
    • An object of the present invention is to reduce jitter dependent on data patterns by an interface receiver. Another object of the present invention is to provide an LSI capable of automatically adjusting a delay time for jitter reduction so as to be able to control its setting for each device. Since the jitter dependent on the data patterns can be expected according to how the previous state is being placed, the state of data received by the receiver is held, and the timing provided to fetch input data is adjusted according to the held state and the input data. As a control mechanism lying in the receiver, for determining a delay time dependent on the form of mounting, a driver transmits and receives pulse data set at one-cycle intervals and pulse data set at two-cycle intervals as test patterns. The receiver has an automatic control mechanism for determining a delay time optimal to a system from the difference between a rising time of each of pulses different in pulse width and its falling time.
    • 本发明的一个目的是通过接口接收机减少取决于数据模式的抖动。 本发明的另一个目的是提供一种LSI能够自动调整抖动减少的延迟时间,以便能够控制每个设备的设置。 由于根据数据模式的抖动可以根据先前状态如何被预期,所以保持由接收器接收到的数据的状态,并且根据保持的状态和输入来调整提取输入数据的定时 数据。 作为位于接收机中的控制机构,为了确定取决于安装形式的延迟时间,驱动器以一个周期的间隔发送和接收设置的脉冲数据,并以两个周期的间隔设置脉冲数据作为测试模式。 接收机具有自动控制机构,用于根据脉冲宽度不同的脉冲的上升时间与其下降时间之间的差来确定对系统最佳的延迟时间。