F28377数据手册对上电顺序的说明：
The voltage on VDDIO should be greater than or equal to the voltage on VDD during power up. Before
powering the device, no voltage larger than 0.3 V above VDDIO should be applied to any digital pin, and no
voltage larger than 0.3 V above VDDA should be applied to any analog pin. The internal power-on-reset
circuit will ensure glitchless IOs during power up.
其中VDDIO是3.3V，VDD是1.2V
它的意思是需要3.3V先上电，1.2V后上电，我可以像下图那样用3.3V去产生1.2V吗？
