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TUSB321: TUSB321+HD3SS3212IRKSR配合时,插拔时DIR管脚电平不正常

Part Number: TUSB321

现在我司在使用TUSB321RWBR和HD3SS3212IRKSR做TYPE C使用过程中,DIR管脚不能正常切换,详细描述如下:
我司设备为TYPE C 摄像机, 线材为一端为USB3.0 的A口,连接电脑,另外一端为C口,如图,在不停插拔C口端过程中或者慢慢插入的时候,出现TUSB321RWBR的dir管脚电平不对(用示波器检测CC脚电平,插拔过程中都保持420mv左右,但是DIR脚电平却不对,理论上应低电平,实际上变为为高电平,),造成HD3SS3212IRKSR不能正确切换,然后USB3.0识别异常,请问这是什么原因

camera100-main-v1.0-20210606.pdfcamera-main-v1.0-.pdf