METHODOLOGY AND SYSTEM FOR SETUP/HOLD TIME CHARACTERIZATION OF ANALOG IP
    1.
    发明申请
    METHODOLOGY AND SYSTEM FOR SETUP/HOLD TIME CHARACTERIZATION OF ANALOG IP 失效
    模拟IP的设置/保持时间表征的方法和系统

    公开(公告)号:US20080141198A1

    公开(公告)日:2008-06-12

    申请号:US11608248

    申请日:2006-12-08

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5036

    摘要: A fast methodology and system to characterize setup/hold time for analog IPs are provided. Partial circuits of clock and data paths are simulated instead of the simulation of entire IPs. The partial circuits include all those paths of clock pin and data input pins before reaching first level DFF. This methodology includes multi-path searching of hierarchical SPICE netlist for the path of clock pin and data pins, so as to reduce the circuit subset, merge the paths of clock pin and the data pins, and characterize the setup/hold time for the analog IP. The paths of data pins and clock pin before DFF are used for setup/hold time characterization.

    摘要翻译: 提供了一种用于表征模拟IP的设置/保持时间的快速方法和系统。 模拟时钟和数据路径的部分电路,而不是整个IP的仿真。 部分电路包括达到第一级DFF之前的时钟引脚和数据输入引脚的所有路径。 该方法包括多路径搜索时钟引脚和数据引脚路径的分层SPICE网表,以减少电路子集,合并时钟引脚和数据引脚的路径,并表征模拟的建立/保持时间 IP。 DFF之前的数据引脚和时钟引脚的路径用于建立/保持时间表征。

    Methodology and system for setup/hold time characterization of analog IP
    2.
    发明授权
    Methodology and system for setup/hold time characterization of analog IP 失效
    模拟IP的设置/保持时间表征的方法和系统

    公开(公告)号:US07596772B2

    公开(公告)日:2009-09-29

    申请号:US11608248

    申请日:2006-12-08

    IPC分类号: G06F17/50 G06F9/45

    CPC分类号: G06F17/5036

    摘要: A fast methodology and system to characterize setup/hold time for analog IPs are provided. Partial circuits of clock and data paths are simulated instead of the simulation of entire IPs. The partial circuits include all those paths of clock pin and data input pins before reaching first level DFF. This methodology includes multi-path searching of hierarchical SPICE netlist for the path of clock pin and data pins, so as to reduce the circuit subset, merge the paths of clock pin and the data pins, and characterize the setup/hold time for the analog IP. The paths of data pins and clock pin before DFF are used for setup/hold time characterization.

    摘要翻译: 提供了一种用于表征模拟IP的设置/保持时间的快速方法和系统。 模拟时钟和数据路径的部分电路,而不是整个IP的仿真。 部分电路包括达到第一级DFF之前的时钟引脚和数据输入引脚的所有路径。 该方法包括多路径搜索时钟引脚和数据引脚路径的分层SPICE网表,以减少电路子集,合并时钟引脚和数据引脚的路径,并表征模拟的建立/保持时间 IP。 DFF之前的数据引脚和时钟引脚的路径用于建立/保持时间表征。

    Input capacitance characterization method in IP library
    4.
    发明申请
    Input capacitance characterization method in IP library 失效
    IP库中的输入电容表征方法

    公开(公告)号:US20070033547A1

    公开(公告)日:2007-02-08

    申请号:US11197820

    申请日:2005-08-05

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5036

    摘要: A methodology for characterization of an IP (Intellectual Property) component is provided. Digital pins are recognized by skipping analog pins and special IO pins. First two layers of the IP component are classified in response to connection of the input pins. Partial circuits of the IP component are extracted for simulation. Three corners of IP library are generated. Therefore, input capacitance of the IP component is simulated.

    摘要翻译: 提供了一个用于表征知识产权(知识产权)组件的方法。 通过跳过模拟引脚和特殊IO引脚可识别数字引脚。 响应于输入引脚的连接,将IP组件的前两层分类。 提取IP组件的部分电路进行仿真。 生成IP库的三个角落。 因此,模拟IP组件的输入电容。

    Input capacitance characterization method in IP library
    5.
    发明授权
    Input capacitance characterization method in IP library 失效
    IP库中的输入电容表征方法

    公开(公告)号:US07516427B2

    公开(公告)日:2009-04-07

    申请号:US11197820

    申请日:2005-08-05

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5036

    摘要: A methodology for characterization of an IP (Intellectual Property) component is provided. Digital pins are recognized by skipping analog pins and special IO pins. First two layers of the IP component are classified in response to connection of the input pins. Partial circuits of the IP component are extracted for simulation. Three corners of IP library are generated. Therefore, input capacitance of the IP component is simulated.

    摘要翻译: 提供了一个用于表征知识产权(知识产权)组件的方法。 通过跳过模拟引脚和特殊IO引脚可识别数字引脚。 响应于输入引脚的连接,IP组件的前两层被分类。 提取IP组件的部分电路进行仿真。 生成IP库的三个角落。 因此,模拟IP组件的输入电容。