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LS1046A
USB1_TX/RX, UDP/UDM
USB1
Mini-PCIe
USB2
USB3
USB2_TX/RX, UDP/UDM
USB3_UDP/UDM
USB_DRVVBUS
USB_PWRFAULT
NX5P2190UK
+5 _ 0 V
AND
USB1PWR_FLT_B
USB1_P1_PWR
USB1_PWRFAULT_IN
USB1_DRVVBUS
USB2_DRVVBUS
USB2_PWRFAULT
NX5P2190UK
+5 _ 0 V
AND
USB2PWR_FLT_B
USB2_P2_PWR
USB2_PWRFAULT
USB2_DRVVBUS
USB1 data bus
USB2 data bus
USB3 data bus
USB2_VBUS
USB1_VBUS
USB3_VBUS
J 2
CPLD
J 1
Figure 12. USB architecture
2.8 IFC interface
The LS1046ARDB integrated flash controller (IFC) has the following features:
• Supports 1.8 V I/O voltage
• Implements little endian support
• Supports 28-bit addressing and 16-bit data bus
• Supports 512 MB SLC NAND flash memory (async/sync - ONFI 1.0 compatible)
The figure below shows the IFC block diagram.
LS1046ARDB Functional Description
QorIQ LS1046A Reference Design Board Reference Manual, Rev. 2, 30 May 2019
30
NXP Semiconductors