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USB EZ-PD™ Type-C Forum Discussions

JoRe_4770041
Level 1
Level 1

In an x 2 configuration, shall the DP_SYS <-> DP_TOP/DP_BOTTOM passthrough be omitted and the lines connected directly?

We intend to dynamically support two configurations:

Config 1: First connector in USB 3.2 Gen1 x 2 mode, second connector in USB 2.0 mode

Config 2: Both connectors in USB 3.2 Gen1 x 1 mode

Is it possible to use the CCG6DF to dynamically switch between these two configurations? If not, can you suggest another solution?

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YiZ_31
Moderator
Moderator
Moderator
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Hi Johannes,

If you do not need the USB 2.0 MUX feature in CCG6DF, then you can omit it.

As you can see, the USB superspeed signal does not go through CCG6DF. The type-c controller cannot decide a USB port support USB 3.2 Gen1x2 or USB 3.2 Gen1x1. What we can do it to notify the opponent that we support other alternate modes.

For receptacle design, a data mux for USB 3.0 signal is needed. You can dynamically cut the USB 3.0 signal, then the only thing left is USB 2.0

Regards,
Eddie

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YiZ_31
Moderator
Moderator
Moderator
1000 replies posted 750 replies posted 500 replies posted

Hi Johannes,

If you do not need the USB 2.0 MUX feature in CCG6DF, then you can omit it.

As you can see, the USB superspeed signal does not go through CCG6DF. The type-c controller cannot decide a USB port support USB 3.2 Gen1x2 or USB 3.2 Gen1x1. What we can do it to notify the opponent that we support other alternate modes.

For receptacle design, a data mux for USB 3.0 signal is needed. You can dynamically cut the USB 3.0 signal, then the only thing left is USB 2.0

Regards,
Eddie

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Hi Eddie,

thanks for clarification. It seems I have intermixed USB 2 and USB 3 signals ...

May you recommend an USB 3.0 data mux?

Regards,

Johannes

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YiZ_31
Moderator
Moderator
Moderator
1000 replies posted 750 replies posted 500 replies posted

Hi Johannes,

You can take a look at PS8823.


Regards,
Eddie

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