Synchronous interface and method of operation
    1.
    发明申请
    Synchronous interface and method of operation 审中-公开
    同步接口和操作方法

    公开(公告)号:US20060095655A1

    公开(公告)日:2006-05-04

    申请号:US10981043

    申请日:2004-11-04

    IPC分类号: G06F12/14

    CPC分类号: G06F5/10 G06F2205/065

    摘要: In one embodiment, an interface facilitates communication of data between a source block and a sink block. The interface comprises a first register element that receives data from the source block via an input line, wherein the first register element changes value when a clock enable signal is applied to the first register element and maintains its value when the clock enable signal is not applied; a first multiplexer coupled to the input line and an output of the first register element; and a first shift register for receiving a signal from the sink block indicating that the sink block is retrieving data from the interface; wherein the first shift register outputs a delayed version of the signal from the sink block to provide the clock enable signal to the first register element and to control an output of the first multiplexer.

    摘要翻译: 在一个实施例中,接口便于在源块和宿块之间的数据通信。 接口包括经由输入线从源块接收数据的第一寄存器元件,其中当时钟使能信号被施加到第一寄存器元件时,第一寄存器元件改变值,并且当不施加时钟使能信号时保持其值 ; 耦合到输入线的第一多路复用器和第一寄存器元件的输出; 以及第一移位寄存器,用于从所述宿块接收指示所述宿块正在从所述接口检索数据的信号; 其中所述第一移位寄存器从所述宿块输出所述信号的延迟版本,以将所述时钟使能信号提供给所述第一寄存器元件并且控制所述第一多路复用器的输出。