
上图的DVDD口我都接了3V3,是不是说明使用power group A/B/C的口都是LVCMOS33标准?upp也是3V3?

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是的,数据手册中有说明。
These groups can be operated at 3.3V or 1.8V nominal. The three groups can be operated at independent voltages but all pins withina group will operate at the same voltage. Group A operates at the voltage of power supply DVDD3318_A. Group B operates at the voltage of power supply DVDD3318_B. Group C operates at the voltage of power supply DVDD3318_C.