We are using BF527 internal USB OTG in host mode.
For sometime, we make the processor to go to SLEEP mode.
During this time, it is observed that USB DP and USB DM lines are at 1.6V level.
But as per our requirement we need to cut down these lines also during SLEEP mode.
Also, We observed that because of always available VDD_USB these lines are powered up. If VDD_USB is removed, then USB DP and USB DM are at 0 V.
We would like to clarify ,
1. Will Blackfin allow such kind of dynamic controlling of VDD_USB power rail?
2. Else is there any way to cut DP and DM lines down through some register settings ?