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LS1046A
EMI2_MDIO
EMI1_MDIO
RTL8211FS
Addr: 4
RTL8211FS
Addr: 3
EMI1_MDC
EMI2_MDC
AQR107
Addr: 0
LVDD=1
.8V
TVDD=2.5V
RTL8211FS
Addr: 2
RTL8211FS
Addr: 1
Figure 11. EMI routing
2.7 USB interface
The LS1046A processor has three integrated USB 3.0 controllers (USB1, USB2, and USB3) that allow direct connection to the
USB ports with appropriate protection circuitry and power supplies. USB1 and USB2 ports are powered by a NX5P2190UK device,
which supplies 5 V power at up to 1.2 A. The power enable and power-fault-detect pins are connected to the LS1046A processor
via CPLD for individual port management.
The figure below shows the LS1046ARDB USB architecture.
USB interface
QorIQ LS1046A Reference Design Board Reference Manual, Rev. 2, 30 May 2019
NXP Semiconductors
29