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TUSB4020BI: TUSB4020和TUSB8020硬件外围可以设计兼容,当GRSTz采用接电容到地的连接方式时,4020需要将VDD先上电,8020手册中,没有提到这种接法需要特殊处理;如果软件想兼容这两颗芯片,上电时序如何配置呢。 - 接口论坛-
TI Designs TIDA-00845: Reference Design of Two-Port Automotive USB 2.0 Hub with Short-to-Battery Protection (Rev. A)
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