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LPC18S50 Datasheet(PDF) 136 Page - NXP Semiconductors |
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LPC18S50 Datasheet(HTML) 136 Page - NXP Semiconductors |
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136 / 151 page  LPC18S50_S30_S10 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 1 — 23 February 2015 136 of 151 NXP Semiconductors LPC18S50/S30/S10 32-bit ARM Cortex-M3 microcontroller Remark: If the VBUS function of the USB1 interface is not connected, configure the pin function for GPIO using the function control bits in the SYSCON block. Remark: In OTG mode, it is important to be able to detect the VBUS level and to charge and discharge VBUS. This requires adding active devices that disconnect the link when VDDIO is not present. Fig 47. USB interface on a bus-powered device Fig 48. USB interface if the USB operates in OTG mode REGULATOR VBUS USBn_VBUS LPC18xx VDDREG USB-B connector USB aaa-013016 VBUS USBn_VBUS LPC18xx VDDIO USB-B connector USB aaa-013017 T2 T1 R1 R2 R3 |
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