NXP Semiconductors QorIQ LX2160A - 1.3 Block diagrams

Chapter 2
LX2160ARDB Functional Description
The LX2160ARDB architecture is primarily determined by the LX2160A processor, with the need to evaluate the LX2160A
processor features and to deliver an easily usable, off-the-shelf software development platform.
This chapter explains all major functional components of the LX2160ARDB. The chapter is divided into the following sections:
• Power supplies
• Clocks
• DDR interface
• SerDes interface
• Ethernet controller interface
• Ethernet management interface
• eSDHC interface
• XSPI interface
• USB interface
• I2C interface
• UART interface
• CAN interface
• JTAG port
• Interrupt controller
• GPIO access
• Temperature measurement
• LEDs
• DIP switches
• System controller
2.1 Power supplies
The LX2160ARDB provides all the voltages necessary for the correct operation of the LX2160A processor, DDR4 UDIMM, PHYs,
and numerous other peripherals. All power is derived from an external power supply, which supplies bulk +12 V, +5 V, +3.3 V,
as well as +5 V standby power.
The ATX-compatible supply is managed by the system controller CPLD and drives the power supplies shown in the figures below.
NXP Semiconductors
QorIQ LX2160A Reference Design Board Reference Manual, Rev. 4, 07/2020
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