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怎么找到ADDR[9:2]进而控制对某些GPIO口的读写功能

Other Parts Discussed in Thread: SW-TM4C

我想使用寄存器对GPIO进行控制,但数据手册上说对GPIODATA的读写受ADDR【9:2】的影响,但我却找不到,不知道怎么弄