How to process unused USB pins of DM6446
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- M24XI: leave open
- M24X0: leave open
- M24Vdd: DVdd18
- M24Vss : Gnd
- USB_VBUS: either pull-down or pull-up
- USB_ID: either pull-down or pull-up
- USB_DP: pull-up
- USB_DM: pull-down
- USB_R1: 10k resistor to USB_Vssref
- USB_Vssref: Gnd
- USB_Vdda3p3: DVdd33 , digital is fine
- USB_Vssa3p3: Gnd, digital is fine
- USB_Vdd1p8: DVdd18, digital is fine
- USB_Vss1p8: Gnd, digital is fine
- USB_Vdda1p2ldo: Be connected via a 1uF capacitor to Vss
- USB_Vssa1p2ldo: Gnd, digital is fine
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