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Table 3. LS1046ARDB features (continued)
Board feature
Processor feature used
Description
IFC 2.0
Integrated flash controller (NOR,
NAND)
• Supports two 64 MB QSPI NOR flash memories (1.8 V);
QSPI is default boot source
• Supports a QSPI emulator (1.8 V) for offboard QSPI
emulation
• Supports a 4 Gbit (512 Mbit x 8) SLC NAND flash
memory (1.8 V) with ECC support
SDHC
One enhanced secure digital host
controller (eSDHC)
• Connects to an onboard SDHC connector (for connecting
an external SDHC card) or an onboard 4 GB eMMC
memory; selection through a 1x2 multiplexer
• Operates at EVDD (1.8 V for SDHC card / 3.3 V for
eMMC memory)
UART
Two DUART modules (DUART1 and
DUART2), each containing two
UARTs
• UART1 and UART2 are connected to a 1x2 RJ45
connector through two RS-232 transceivers
• UART1 can be connected to a micro-USB connector
through a CMSIS-DAP interface; selection through DIP
switch, SW4[4]
I2C
Two I2C controllers (I2C1 and I2C4)
• I2C1: Controls DDR4 DIMM socket, XFI retimer, SFP+
cage, PMIC, clock generator, current monitor, thermal
monitor, EEPROM, mini-PCIe slot, and one PCIe slot
• I2C4: Controls the other PCIe slot and RTC
Table continues on the next page...
Board features
QorIQ LS1046A Reference Design Board Reference Manual, Rev. 2, 30 May 2019
NXP Semiconductors
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