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关于28377s与LAN9221连接设计问题



各位专家,麻烦指导一下,28377S的EMIF1接口有两个信号EM1RNW和EM1OE,这两个信号用法有什么区别,因为我在看读SRM的时序图中没有发现有EM1RNW的波形,只有EM1OE的波形。

我在设计28377s与LAN9221连接时,LAN9221有nRD信号,我是连接用EM1RNW,还是用EM1OE?

 


  • 各位专家,麻烦指导一下,28377S的EMIF1接口有两个信号EM1RNW和EM1OE,这两个信号用法有什么区别,因为我在看读SRM的时序图中没有发现有EM1RNW的波形,只有EM1OE的波形。

    我在设计28377s与LAN9221连接时,LAN9221有nRD信号,我是连接用EM1RNW,还是用EM1OE?“
    ERic:
    EM1OE O Active-low pin enable for asynchronous devices.
    This pin provides a signal which is active-low during the strobe period of an asynchronous read
    access cycle.
    EM1RNW O EMIF asynchronous read/write control.
    This pin stays high during reads and stays low during writes (same duration as CS)
    看说明要接EM1OE。
  • 请问以上描述在手册的那页描述?
  • TMS320F2837xD Dual-Core Delfino
    Microcontrollers
    Technical Reference Manual
    在这个文档里面关于EMIF的章节中。