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| UM10360 Datasheet, PDF (274/835 Pages) NXP Semiconductors – LPC17xx User manual | |||
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NXP Semiconductors
UM10360
Chapter 13: LPC17xx USB OTG controller
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.
VDD
USB_UP_LED
LPC176x
USB_D+
33 Ω
USB_Dâ
33 Ω
15 kΩ 15 kΩ
USB_PWRD
USB_OVRCR
USB_PPWR
ENA
5V
IN
LM3526-L
FLAGA
OUTA
VSS
D+
Dâ
VDD
VBUS
USB-A
connector
Fig 35. USB host port configuration
graphicID
7.3 Connecting USB as device
The USB port is connected as device. There is no OTG functionality on the USB port.
VDD
USB_UP_LED
VDD
LPC176x
USB_CONNECT
USB_D+
33 Ω
USB_Dâ
33 Ω
VBUS
Fig 36. USB device port configuration
VSS
D+
Dâ
VBUS
USB-B
connector
graphicID
UM10360_1
User manual
Rev. 01 â 4 January 2010
© NXP B.V. 2010. All rights reserved.
274 of 835
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