Apparatus and method for topography dependent signaling
    12.
    发明授权
    Apparatus and method for topography dependent signaling 有权
    用于地形依赖信号的装置和方法

    公开(公告)号:US06684263B2

    公开(公告)日:2004-01-27

    申请号:US10359061

    申请日:2003-02-04

    IPC分类号: G06F1300

    摘要: Bus communications are optimized by adjusting signal characteristics in accordance with one or more topography dependent parameters. In a bus transmitter, a transmit signal characteristic is adjusted in accordance with a topography dependent parameter. A port in the bus transmitter receives the topography dependent parameter for later use by the parameter adjustment circuitry. The parameter adjustment circuitry adjusts a parameter control signal in accordance with the topography dependent parameter, which is coupled to the output driver. Prior to driving an output signal onto a bus, the output driver adjusts the transmit signal characteristic in accordance with the parameter control signal. In a bus receiver, a receive signal characteristic is adjusted in response to a topography dependent parameter. A port associated with the bus receiver receives the topography dependent parameter and stores it in a register. Parameter adjustment circuitry adjusts a control signal in accordance with the stored topography dependent parameter. An input buffer receives an input signal from a bus coupling the receiver to a transmitter of the input signal. The input buffer generates a first signal from the input signal by adjusting a the parameter of the input signal in accordance with the control signal.

    摘要翻译: 通过根据一个或多个地形相关参数调整信号特性来优化总线通信。 在总线发送器中,根据地形相关参数来调整发送信号特性。 总线发射器中的端口接收地形相关参数,供以后由参数调整电路使用。 参数调整电路根据与输出驱动器耦合的地形相关参数来调整参数控制信号。 在将输出信号驱动到总线之前,输出驱动器根据参数控制信号调整发送信号特性。 在总线接收机中,响应于地形相关参数来调整接收信号特性。 与总线接收器相关联的端口接收地形相关参数并将其存储在寄存器中。 参数调整电路根据所存储的地形相关参数调整控制信号。 输入缓冲器接收来自将接收器耦合到输入信号的发射器的总线的输入信号。 输入缓冲器根据控制信号通过调节输入信号的参数从输入信号产生第一信号。