I/O cell configuration for multiple I/O standards
    7.
    发明授权
    I/O cell configuration for multiple I/O standards 有权
    多个I / O标准的I / O单元配置

    公开(公告)号:US06836151B1

    公开(公告)日:2004-12-28

    申请号:US10781334

    申请日:2004-02-17

    IPC分类号: H03K190195

    CPC分类号: H03K19/018585

    摘要: Circuitry is provided to individually configure each I/O of an integrated circuit to be compatible with a different LVTTL I/O standards. This can be done with only one I/O supply voltage, where that voltage is the highest of the I/O voltages needed in a particular application. The circuitry operates by regulating the output voltage of the I/O cell so that it is above the VOH and below the maximum VIH for the LVTTL standard for which it will comply with. Since each I/O cell is individually configurable, any I/O can drive out to any LVTTL specification.

    摘要翻译: 提供电路以单独配置集成电路的每个I / O以与不同的LVTTL I / O标准兼容。 这可以通过仅一个I / O电源电压完成,其中该电压是特定应用中所需的I / O电压中最高的。 电路通过调节I / O单元的输出电压进行操作,使其高于VOH并低于其符合的LVTTL标准的最大VIH。 由于每个I / O单元都可单独配置,任何I / O都可以驱动到任何LVTTL规范。

    Programmable logic device with enhanced multiplexing capabilities in interconnect resources
    9.
    发明授权
    Programmable logic device with enhanced multiplexing capabilities in interconnect resources 有权
    具有增强的互连资源复用能力的可编程逻辑器件

    公开(公告)号:US06278288B1

    公开(公告)日:2001-08-21

    申请号:US09574371

    申请日:2000-05-19

    IPC分类号: G06F738

    摘要: A programmable logic integrated circuit device is provided with enhanced capability for dynamically multiplexing signals on the device. Controllable connectors that are provided on the device for connecting any of several connector input signals to a connector output are controlled by control signals that can be programmable selected to be either constant or variable signals. If a control signal is selected to be a variable signal, then the connector controlled by that control signal can be operated as a dynamic multiplexer of the input signals to that connector. The controllable connectors may advantageously be used as the connectors that are employed for allowing several possible signal sources to effectively share a smaller of number of signal drivers.

    摘要翻译: 可编程逻辑集成电路器件具有增强的功能,用于在器件上动态地复用信号。 在设备上提供的用于将多个连接器输入信号中的任何一个连接到连接器输出的可控连接器由可编程选择为恒定或可变信号的控制信号控制。 如果控制信号被选择为可变信号,则由该控制信号控制的连接器可以作为到该连接器的输入信号的动态多路复用器来操作。 可控连接器可以有利地用作连接器,其用于允许几个可能的信号源有效地共享更少数量的信号驱动器。