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TUSB422如何配置为source power 模式

Other Parts Discussed in Thread: TUSB422

现在想做一个可供手机充电,同时手机可以DP输出视频 使用USB TYPE C接口

  • MESSAGE_HEADER_INFO POWER_ROLE = 1,那么TUSB422为source 请参考datasheet 7.3.12部分VBUS Power Source Requirements的介绍。
    如果MESSAGE_HEADER_INFO POWER_ROLE = 0, 那么TUSB422为sink。
  • Config Standard Output Register (address = 0x18) [reset = 0x60]中说明如下
    MUX Control 00b: No connection (default)
    01b: USB3.1 Connected 10b: DP Alternate Mode – 4 lanes
    11b: USB3.1 + Display Port Lanes 0 & 1
    For TUSB422 this field has no meaning
    TUSB422能配置DP替代模式输出吗