Manu Abraham wrote:
> So, if the resistor is the STRONG_PULLUP, then why
> mention in the software flowchart, that STRONG_PULLUP is required in
> parasite mode ?

Probably because it is.  In parasite mode the device gets its power from th=
e
data line.  That data line therefore has to be able to source current withi=
n
some range.  At the low end, it must source enough current to keep the
device powered.  At the high end, it must not source so much current that i=
t
and other devices on the bus can't pull the line low.

When it's not operating in parasitic power mode, then the data line doesn't
need to source as much current since it's not powering the device.
Therefore the pullup can be more weak.


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