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希望大神解惑,AIOMUX到底是干什么的?



希望大神讲解一下28035的AIOMUX到底有什么用,才鸟之前接触2812但是2812里面并没有这个寄存器,想问一下这个寄存器有什么用?

 GpioCtrlRegs.AIOMUX1.bit.AIO2 = 2;    // Configure AIO2 for A2 (analog input) operation  

GpioCtrlRegs.AIOMUX1.bit.AIO4 = 2;    // Configure AIO4 for A4 (analog input) operation
    GpioCtrlRegs.AIOMUX1.bit.AIO6 = 2;    // Configure AIO6 for A6 (analog input) operation
    GpioCtrlRegs.AIOMUX1.bit.AIO10 = 2;   // Configure AIO10 for B2 (analog input) operation
    GpioCtrlRegs.AIOMUX1.bit.AIO12 = 2;   // Configure AIO14 for B6 (analog input) operation

这样配置到底是干什么的?