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28335外扩2片1M*16的RAM，分别对应ZONE6和ZONE7；连线时，把20根地址线，16根数据线，读/XRD， 写/XWE0都并到芯片引脚，然后把/XZCS6和/XZCS7分别接到两片RAM上，通过片选来进行读写。这样是否正确？
这样接线式可以的
