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中文

USB 2.0 被用于使能VBUS，并检测VBUS的有效状态。这是USB 3.0正常运行所必需的。

对于USB 3.0的所有三种模式，都需要USB 2.0。正常配置USB 2.0，才能保证USB 3.0的功能和兼容性。

原文

AR# 68856 Zynq UltraScale+ MPSoC - USB 3.0 – Is it possible to disable USB 2.0 features while enabling USB 3.0 in the PS?

Description

Is it possible to disable USB 2.0 features while enabling USB 3.0 in the Processing System (PS)?

Solution

The USB 2.0 ULPI Bus role is to enable VBUS regulators on Board and Detect a VBUS Valid condition from the board.

This is required for proper functioning of USB 3.0.

For all the three modes of USB 3.0, it is mandatory to program and use USB 2.0 MIOs as part of compliance for configuration and use of USB 3.0 in the PS.

原文链接

https://www.xilinx.com/support/answers/68856.html

【翻译】MPSoC是否可以只使用USB 3.0，而不使用USB 2.0？

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原文地址：https://www.cnblogs.com/hankfu/p/14069498.html