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6678的emif16手册上提到emif16的地址线有24位，数据线最多有16bit，有效空间只有16M*16bit,怎么能充分利用0x70000000起始的64MB的空间？
如果接的是nor flash, SRAM,地址线线性寻址的限制，没法充分利用64MB，NAND flash没有此限制。请看下面数据手册Table 2-2 Memory Map Summary (Sheet 7 of 7)表格下面的note。 32MB per chip select for 16-bit NOR and SRAM. 16MB per chip select for 8-bit NOR and SRAM. The 32MB and 16MB size restrictions do not apply to NANDhttps://www.ti.com/lit/ds/symlink/tms320c6678.pdf
