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TMS320DM8168 DDR3数据线连接方式

我做硬件设计时,参照官方下载的原理图evm816x_Schematics_RevD,我发现DDR0的接线方式如下

数据线DDR0_D5连接的是DDR3的MEM00_D5,DDR0_D0连接的是MEM00_D2,DDR0_D4连接的是MEM00_D0,MEM00_D5连接的是DDR0_D4,是必须要这么接还是DDR3的DQ[0:7]是可以进行调线的?