TUSB8041: Clock Disabled if no activity?

Ishay Shavit24

Part Number: TUSB8041

Hi,

In debug, I saw no clock on XO pin.

After a long time, managed to get the Evaluation Board, and I also could not see a clock - until there were host and device connected.

Is this documented somewhere?

Thanks.

over 5 years ago

0 JMMN over 5 years ago

TI__Guru 60870 points

Hello Ishay,

Yes, the clock is disabled when the hub is in suspend (low power mode). To force a USB host to keep the hub out of suspend, connect a device to one of the downstream ports.

Regards,

JMMN

0 Ishay Shavit24 over 5 years ago in reply to JMMN

Intellectual 310 points

Thanks.

I couldn't find this information in the datasheet, and suggests to have it there.

(If it's already there - I apologize.)

Wish you a happy new year.

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TUSB8041: Clock Disabled if no activity?