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1.DVSYS:MCU数字IO的电源,注意该MCU中IO只能提供拉电流的方式,若做成灌电流则有可能造成MCU复位。
2.VDSYS:MCU数字部分的电源输出(从DVCC,AUXVCC1,AUXVCC2中三选一作为),需要与VSS之间接滤波电容,推荐为4.7uF
3.VASYS:MCU模拟部分电源的输出,需要与VSS之间接滤波电容,推荐为4.7uF