[sdiy] Does usb c alternative mode allow analog signals on the multi-purpose pins?

[cheater cheater]

There is a wiring diagram in Appendix A with a schematic.

On Fri, Nov 18, 2022 at 1:45 AM Didrik Madheden via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
> Hmm. On that note, how are those wired? There are pins reserved for two rx and two tx differential pairs, which are somewhat protocol agnostic. Those can be used for PCIe within the USB 3 standard, or to transfer video data. Whether any given adapter is fully standards compliant is a different issue, but those would be logical pins to use. Or do those adapters use other pins for PCIe lanes as well like USB2 D+ and D- or CC/SBU?
>
> /Didrik
>
> On Tue, 15 Nov 2022, 23:42 Mike Bryant, <mbryant at futurehorizons.com> wrote:
>>
>> Well that was effective then ... NOT :-)
>>
>> All the Chinese vendors have now agreed on a standard wiring for PCIe extension over the USB-C cable.
>>
>> ________________________________
>> From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Chromatest J. Pantsmaker via Synth-diy <synth-diy at synth-diy.org>
>> Sent: 15 November 2022 20:23
>> To: cheater cheater <cheater00social at gmail.com>
>> Cc: synth-diy <synth-diy at synth-diy.org>
>> Subject: Re: [sdiy] Does usb c alternative mode allow analog signals on the multi-purpose pins?
>>
>> "NOTE: Adopters may only use the USB Type-C® cable and connector to implement USB or third party functionality as expressly described in this Specification; all other uses are prohibited."
>> From:
>> https://www.usb.org/sites/default/files/USB%20Type-C%20Spec%20R2.0%20-%20August%202019.pdf
>>
>>
>> On Tue, Nov 15, 2022 at 11:08 AM cheater cheater via Synth-diy <synth-diy at synth-diy.org> wrote:
>>
>> As in subject. Is there anything in the spec that speaks against this?
>> Where would one go in order to get a definitive answer to this?
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