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如题，C6678的DDR3由原来的2G扩展至4G，配置XMC中的MPAX，corepac可以正常访问高2G的DDR3。EDMA访问高2G的DDR3，需要设置MSMC中MPAX的哪些寄存器呢？
见
KeyStone Architecture Multicore Shared Memory Controller (MSMC) User Guide 3.5章节
MSMC的MPAX和XMC的MPAX原理是一样的。
