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C5517 USB数据电平

user6043231
Prodigy 30 points
Other Parts Discussed in Thread: TMS320C5517

测量时发现，TMS320C5517 作为USB device，测量USB FULL Speed数据信号，信号幅度有3.4V左右，供电为3.3V

规格书要求高电平MAX为USB_VDDA3P3

该IC有什么手段可以调整该电平？

目前的测试手段是接USB HOST直接测量信号，5517有没有办法发出标准USB测试波形测试？