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Kintex Ult FPGA SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.4.2
Processor Memory
2.4.2.1
DDR4 SDRAM with ECC for LS1021A
The Kintex Ult FPGA SOM supports 32bit, 2GB DDR4 RAM memory for LS1021A. Two 16 bit, 1GB DDR4 SDRAM ICs are used
to support a total on board RAM memory of 2GB. Also, Kintex Ult FPGA SOM supports one 4bit ECC for RAM memory.
These DDR4 devices operates at 1600MTps data rate. DDR4 memory is connected to the DDR4 SDRAM controller of the LS1021A
Processor. The RAM size can be expandable up to maximum of 8GB based on the availability of higher density 16bit DDR4 device.
2.4.2.2
NOR Flash
The Kintex Ult FPGA SOM supports 250MB NOR Flash memory as boot-device of LS1021A Processor. The NOR Flash is used
for programming RCW and U-boot for LS1021A booting purpose. This NOR Flash memory is connected to the Integrated Flash
Controller of the LS1021A Processor and operates at 3.3V Voltage level.
2.4.2.3
MRAM
The Kintex Ult FPGA SOM supports 4MB MRAM memory for storage purpose for Layerscape LS1021A Processor. This
MRAM memory is connected to the Integrated Flash Controller of the LS1021A Processor and operates at 3.3V Voltage level.
2.4.2.4
SRAM
The Kintex Ult FPGA SOM supports 512KB SPI Serial SRAM memory for storage purpose of LS1021A Processor. This SRAM
memory is connected to the SPI2 lane of LS1021A and operates at 1.8V Voltage level.
