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关于C6678 PCIe的Maximum Read Request Size的问题



按照sprugs6d 

maximum remote read request size 是256字节

而DEV_STAT_CTRL寄存器中bit[14:12] MAX_REQ_SZ Maximum Read Request Size 默认值为2,表示512字节

我的问题是,请问,maximum remote read request size 和 Maximum Read Request Size是否一个意思?

如果是,那么256和512是否冲突了?以那个为准?