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MTK platform maintenance analysis--D660 USB disk, charging, ringtone, photo taking

  • 2013-09-20
  • 745.51KB
  • Points it Requires : 2

Mobile phone USB flash drive related signals: USB_PWR: USB LDO power supply input from I/O interface VUSB: CPU USB module power supply input 3.3V from U403 USB_DM: USB data input/output negative 1.2V USB_DP: USB data input/output positive 1.2V GP02_USB_EN: USB LDO power supply enable signal EINT3_USB: USB interrupt signal

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