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Part Number: AM5728
I have a question about AM572x USB2.0 .My customer are planning to use USB2.0 2port, one port is USB Host and other is USB Device.They have a question about how to control VBUS detection.
I understood that the companion PMIC need to sense the VBUS when using AM572x.On the AM5728 IDK EVM, USB2.0 are Device function. External VBUS are supplied to TPS659037 and GPIO_1 pin of TPS659037 are connected to one of GPIO pin of AM572x to tell the VBUS detection.
In AM572x Technical Referenc Manual(spruhz6k) page.6179 and page.6180, there are each connection diagram for USB 2.0 Host and USB2.0 Device but not both cases.As I mention above, the customer want to use USB2.0 2 port(Host and Device) simutaneouly.In such case, I guess PMIC need 2 input ports for VBUS and 2 VBUS detection signals are needed. But TPS659037 have only one VBUS input pin and one VBUS detection pin.So, how to detect 2 VBUS and who will send the two VBUS detection signal to AM572x?Please show me the example of signal connection when using USB2.0 2port(Host and Device)?
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In reply to -DK-:
In reply to g.f.:
Yes, For Host mode operation VBUS sensing is optional.
EDIT: Above response is for AM57xx devices. Each device in the Sitara family of devices may have different requirements.
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