UM10360 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
User manual Rev. 3 — 19 December 2013 277 of 841
NXP Semiconductors
UM10360
Chapter 13: LPC176x/5x USB OTG
13.7.2 Connecting USB as a host
The USB port is connected as host using an embedded USB transceiver. There is no
OTG functionality on the port.
13.7.3 Connecting USB as device
The USB port is connected as device. There is no OTG functionality on the USB port.
Fig 36. USB host port configuration
USB_UP_LED
USB_D+
USB_D−
USB_PWRD
15 kΩ 15 kΩ
LPC176x
USB-A
connector
33 Ω
33 Ω
graphicID
V
DD
USB_OVRCR
USB_PPWR
LM3526-L
ENA
IN
5 V
FLAGA
OUTA
V
DD
D+
D−
V
BUS
V
SS
Fig 37. USB device port configuration
LPC176x
USB-B
connector
33 Ω
33 Ω
graphicID
USB_UP_LED
USB_CONNECT
V
DD
V
DD
D+
D−
USB_D+
USB_D−
V
BUS
V
BUS
V
SS
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