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您好,指针寄存器就指的红色框这些寄存器,比如我们要对配置寄存器进行配置,那么根据Register maps中的可知Configuration Register的地址为01h。那么P3P2P1P0=0001.加上前面4位,8bit地址为00000001.时序后面Data register N MSB 指的是寄存器01h的高8bit data。