RE: hibernation and HIRD threshold

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> From: Felipe Balbi [mailto:balbi@xxxxxx]
> Sent: Thursday, December 19, 2013 11:49 AM
> 
> Hi Paul,
> 
> I'm reading section 12.3.6.1 on Databook 2.70a. In step 5, databook
> mentions we should "set DCTL.HIRD_Thres[4] to 1, and
> DCTL.HIRD_Thres[3:0] to an appropriate value", but on Table 6-61 Device
> Control Register: DCTL (page 540) there's a note stating that "This
> field must be set to ‘0’ during SuperSpeed mode of operation"
> 
> So, how can we support hibernation on Superspeed scenario ? That seems
> to be a bit conflicting.

Hi Felipe,

What you should do is, when you get a Connect Done event, check the
speed of the connection. If it is SuperSpeed, set HIRD_Thres to 0. If
it is any other speed, set HIRD_Thres to the "appropriate value".

I will talk to the doc folks about describing that better.

-- 
Paul

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