Am Freitag, den 04.05.2018, 08:59 +0000 schrieb Jun Li:
>
> > > > Can one implement a device that can operate as either DFP or UFP,
> > > > but not implements the dynamic role switch that a DRP must support?
> > >
> > > You mean a port with DRD on data but not DRP on power?
> > >
> > > The data-role is newly added as the data role is not coupled with
> > > power
> >
> > No, I meant data role. As far as I can tell for a DRP you need to implement
> > the
> > detection logic described in chapter 4 of the spec.
>
> Could you please point me the "detection logic" of typec spec chapter 4
> you are referring to?
Chapter 4.5.2.2, especially state diagramms 4.15 and 4.16
It just seems to me that a DRP and a physical port that can be switched
between UFP and DFP are not the same thing, but can be implemented.
Regards
Oliver
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