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TUSB2046B 设备描述符请求失败

各位大神,跪求帮助

HUB连接电脑,一直显示"设备描述符请求失败".电路是参考官网参考图设计的,5V和3.3V正常。EEPROM目前写入的参数是 00000(00),00001(01),00010(01),不知道对不对。实在是没思路了。请大神们多多指点啊。

P001.102-HUB-00-134152B.pdf