10K
10
LX2160A
5V0
USB
3.0
type A
USB1_DRVVBUS
USB1_RESREF
USB1_PWRFAULT
USB1_VBUS
“USB1”
90
W
diff. imp.
USB1_D_[P,M]
USB1_ID
USB1_TX_[P,M]
USB1_RX_[P,M]
<=2A
USB1
NX5P3090
USB1
mode
5V0
USB2_DRVVBUS
USB2_RESREF
USB2_PWRFAULT
USB2_VBUS
“USB2”
90
W
diff. imp.
USB2_DP,DM
USB2_ID
USB2_TXP,TXM
USB2_RXP,RXM
<=2A
USB2
NX5P3090
USB2
mode
USB3.0
vertical
right-angle
USB
3.0
micro-
AB
10K
10
Figure 2-17. USB architecture
The USBx_DRVVBUS and USBx_PWRFAULT pins of each USB controller are
connected to a programmable-current USB switch, NX5P3090UK (from NXP), for
individual port management. The USB switch is powered from +5 V USB power supply.
The USB1_DRVVBUS/USB2_DRVVBUS signal controls the VBUS drive for USB1/
USB2 port. The USB1_PWRFAULT/USB2_PWRFAULT signal gets power fault
indications through the USB switch. The maximum allowed current consumption of a
USB connected device is 2 A per channel.
Each USB connector has an LED nearby, USB1_5V and USB2_5V, which are active
when the +5 V USB power supply is enabled.
Chapter 2 LX2160ARDB Functional Description
QorIQ LX2160A Reference Design Board Reference Manual, Rev. 0, 09/2018
NXP Semiconductors 41
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