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TPS 65930 PMIC DEGUG meaning

I am using TPS 65930 PMIC and AM 3730 processor.I am facing problem in OTG host mode for High speed devices during BOOT.

During this case i found the DEGUG register value is 0x11(0001 0001).But the same register holds  the value of  0x10(0001 0000) during working condition(For LS(Low speed) devices).

My question is,what does this register least two significant bits indicate? can any one explain what is DP and DM signals means?????