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Linux/AM3358: VDDSHV3 power supply

Part Number: AM3358

Tool/software: Linux

Hi TI:

I have a self-developed AM3358 board with AR8031 to realize 1000M Enet in RGMII2

When I supply 3.3V to VDDSHV3 and ”ping ip -p 0xf0 -s 65000" , the probability of time out is about 30%

When I supply 2.5V to VDDSHV3 and ”ping ip -p 0xf0 -s 65000" , the probability of time out is less than 0.01%

When I supply 1.8V to VDDSHV3 and ”ping ip -p 0xf0 -s 65000" , the probability of time out is about  1%

According to AM3358 datasheet, VDDSHV3 can run in 3.3/1.8V power supply, can I supply VDDSHV3 with 2.5V Voltage?