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1. 发明申请

US20090224809A1 SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND METHOD FOR EVALUATING AN EYE-OPENING MARGIN 有权
标题翻译：半导体集成电路装置和评估眼睛开放标志的方法
公开(公告)号：US20090224809A1
公开(公告)日：2009-09-10
申请号：US12367067
申请日：2009-02-06
申请人： Akira Matsumoto , Daisuke Hamano , Atsuhiro Hayashi , kzuhisa Suzuki
发明人： Akira Matsumoto , Daisuke Hamano , Atsuhiro Hayashi , kzuhisa Suzuki
IPC分类号： H03L7/00
CPC分类号： H03L7/08 , H04L1/205 , H04L7/0008 , H04L7/0331 , H04L7/043
摘要： An eye-opening margin measurement method for a high-speed serial data reception circuit which uses a circuit for eye-opening margin measurement involving operation of a clock data recovery circuit without fixing the clock phase. In this method, an error acceleration test can also be made on received data by giving an offset pulse signal to phase information to add a jitter component. The method uses a semiconductor integrated circuit device which includes a serializer/deserializer circuit (SerDes) for receiving serial data and a reference serializer/deserializer circuit (Ref_SerDes) for receiving an accompanying clock signal. The SerDes circuit converts received serial data into parallel data through a recovery clock whose phase is controlled using phase control signal P_CS generated by the Ref_SerDes circuit. An offset pulse signal Offset_Pulse from the pulse-forming circuit is applied to the phase control signal P_CS to make eye-opening margin measurement.
摘要翻译：一种用于高速串行数据接收电路的开眼边缘测量方法，其使用涉及在不固定时钟相位的情况下操作时钟数据恢复电路的眼睛开度边缘测量电路。在该方法中，也可以通过向相位信息给出偏移脉冲信号来添加抖动分量，来对接收到的数据进行误差加速度测试。该方法使用包括用于接收串行数据的串行器/解串行器电路（SerDes）和用于接收伴随时钟信号的参考串行器/解串行器电路（Ref_SerDes）的半导体集成电路器件。 SerDes电路通过恢复时钟将接收的串行数据转换成并行数据，恢复时钟的相位由Ref_SerDes电路生成的相位控制信号P_CS进行控制。来自脉冲形成电路的偏移脉冲信号Offset_Pulse被施加到相位控制信号P_CS以进行开眼余量测量。

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