Flexible I/O routing resources
    3.
    发明授权
    Flexible I/O routing resources 有权
    灵活的I / O路由资源

    公开(公告)号:US06826741B1

    公开(公告)日:2004-11-30

    申请号:US10289629

    申请日:2002-11-06

    IPC分类号: G06F1750

    CPC分类号: H03K19/17736 H03K19/17744

    摘要: In one aspect, flexible routing resources provided are comprising an arrangement of staggered line segments on a periphery of an electronic device. In another aspect, I/O bus lines a re coupled to receive signals from and to provide signals to other bus lines, core routing, and I/O circuitry, thus facilitating the use of the I/O bus for a variety of routes that may include I/O-to-core, core-to-I/O and core-to-core routes. In another aspect, a length of I/O bus lines is optimized for speed over long signal routes with high fanout. In another aspect, the loading effects of high fanout are minimized by using a plurality of tapping buffers to couple lines to both core routing and to I/O circuitry. In another aspect, a spiraling technique is provided that allows a continuous bus having line segments of consistent length whether or not the number of I/O blocks is an integral multiple of the selected logical length for line segments.

    摘要翻译: 在一个方面,提供的灵活路由资源包括在电子设备的外围上的交错线段的布置。 在另一方面,I / O总线线路被耦合以从其接收信号并向其它总线线路,核心路由和I / O电路提供信号,从而便于将I / O总线用于各种路由, 可能包括I / O到核心,核到I / O和核心到核心的路由。 在另一方面,I / O总线的长度针对具有高扇出的长信号路由的速度被优化。 在另一方面,通过使用多个分接缓冲器来将线耦合到核心路由和I / O电路两者,高扇出的负载效应被最小化。 在另一方面,提供一种螺旋式技术,其允许具有一致长度的线段的连续总线,无论I / O块的数量是否为线段的所选逻辑长度的整数倍。