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TUSB4041I USB 过流检测

Hi TI,

datasheet中怎么没有看到USB过流检测是怎么判断的?可以通过i2c读取寄存器判断吗?还是说,一定要接外接电路,通过GPIO引脚来获取状态?

芯片检测到过流后,HUB的 vbus电源是自动关闭还是说也需要外部GPIO来控制?