NXP Semiconductors LPC24XX UM10237 - Manual (Page 399)

UM10237_4 © NXP B.V. 2009. All rights reserved.
User manual Rev. 04 — 26 August 2009 399 of 792
NXP Semiconductors
UM10237
Chapter 15: LPC24XX USB OTG controller
6.2 Connecting USB as a two-port host
Both ports U1 and U2 are connected as hosts using an embedded USB transceiver. There
is no OTG functionality on either port.
6.3 Connecting USB as one port host and one port device
Port U2 is connected as device, and port U1 is connected as host using an embedded
USB transceiver. There is no OTG functionality on either port.
Fig 55. USB OTG port configuration: port U2 host, port U1 host
USB_UP_LED1
USB_D+1
USB_D −1
USB_PWRD1
USB_PWRD2
15
k
Ω
15
k
Ω
15
k
Ω
15
k
Ω
LPC24XX
USB-A
connector
USB-A
connector
33 Ω
33 Ω
33 Ω
33 Ω
002aac709
V DD
USB_UP_LED2
V DD
USB_OVRCR1
USB_OVRCR2
USB_PPWR1
LM3526-L
ENA
ENB
IN
5 V
FLAGA
OUTA
OUTB
FLAGB
V DD
V DD
D+
D −
D+
D −
V BUS
V
BUS
USB_PPWR2
USB_D+2
USB_D −2
V SS
V SS