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XuhDN（差分数据﹣） Connect to USB Host Data Minus. 15Kohm Pull-down resistor is required. Connect 15Kohm series resistor to GND. XuhDP（差分数据+） Connect to USB Hot Data plus . 15Kohm Pull-down resistor is required. Connect 15Kohm series resistor to GND. USB OTG XusbDP（差分数据+） Connect to USB Data pin DATA(+) Leave as a No Connect XusbDM（差分数据﹣） Connect to USB Data pin DATA(-) Leave as a No Connect XusbXTI（晶振连接） Connect to Crystal XI signal if using Crystal. Connect to GND if using Oscillator. Connect to 1M Ohm resistor between XusbXTI and XusbXTO (case of using Crystal) Connect to GND. Connect like left column in order to supply 48MHz clock for other IPs (USB Host, IrDA, HSMMC, SPI) XusbXTO（晶振连接0 Connect to Crystal/Oscillator XO signal Connect to 1M Ohm resistor between XusbXTI and XusbXTO(case of using Crystal) Connect to GND Connect like left column in order to supply 48MHz clock for other IPs (USB Host, IrDA, HSMMC, SPI) XusbREXT Connect to External 44.2ohm(+/- 1%) resistor to GND Leave as a No Connect Connect like left column in order to supply 48MHz clock for other IPs (USB Host, IrDA, HSMMC, SPI XusbVBUS（电源） Connect USB mini-receptacle VBUS Leave as a No Connect XusbID（身份认证） Connect USB mini-receptacle Identifier .Device Mode : leave as a no connect Leave as a No Connect XusbDRVVBUS Connect to Drive Vbus for Off-Chip Charge Pump. Device Mode : leave as a no connect Leave as a No Connect
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