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C5502与SDRAM布线问题

目前在进行C5502与SDRAM的布线,其中数据线为了方便走线,

1)是否可以组内调换。如C5502的D0~D7,随便接SDRAM的D0~D7的任意引脚。

2)是否可以整组调换,如C5502的D0~D7,接至SDRAM的D8~D15上去?同时字节控制引脚BE0,BE1与SDRAM的连线是否也需要调换。

3)是否有官方的PCBLayout可以下载,作为布线参考。

求指教,谢谢!