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TUSB4020BI-Q1: TUSB4020BI Q1 Hub not detecting - Interface forum - Interface - TI E2E support forums
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TI Designs TIDA-00845: Reference Design of Two-Port Automotive USB 2.0 Hub with Short-to-Battery Protection (Rev. A)
![TUSB4020BI-Q1: Hub unresponsive, drawing lots of current. - Interface forum - Interface - TI E2E support forums TUSB4020BI-Q1: Hub unresponsive, drawing lots of current. - Interface forum - Interface - TI E2E support forums](https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/138/2500.USB.png)
TUSB4020BI-Q1: Hub unresponsive, drawing lots of current. - Interface forum - Interface - TI E2E support forums
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![TUSB4020BI: controlling on/off of downstream communication by I2C - Interface forum - Interface - TI E2E support forums TUSB4020BI: controlling on/off of downstream communication by I2C - Interface forum - Interface - TI E2E support forums](https://e2e.ti.com/resized-image/__size/1230x0/__key/communityserver-discussions-components-files/138/4532.TUSB4020BI.png)
TUSB4020BI: controlling on/off of downstream communication by I2C - Interface forum - Interface - TI E2E support forums
![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- 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-](https://e2echina.ti.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/59/pastedimage1661221784634v2.png)
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-
![TUSB4020BI-Q1: TUSB4020BI Q1 Hub not detecting - Interface forum - Interface - TI E2E support forums TUSB4020BI-Q1: TUSB4020BI Q1 Hub not detecting - Interface forum - Interface - TI E2E support forums](https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/138/controller.jpg)
TUSB4020BI-Q1: TUSB4020BI Q1 Hub not detecting - Interface forum - Interface - TI E2E support forums
![TUSB4020BI: Pls help review schematic diagram designing and give same suggestion. - Interface forum - Interface - TI E2E support forums TUSB4020BI: Pls help review schematic diagram designing and give same suggestion. - Interface forum - Interface - TI E2E support forums](https://e2e.ti.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/138/2438.TUSB4020.jpg)