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Kintex Ult FPGA SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.3.2
FPGA Memory
2.3.2.1
DDR4 SDRAM1 with ECC
The Kintex Ult FPGA SOM supports 64bit, 4GB DDR4 RAM memory for FPGA. Four 16 bit, 1GB DDR4 SDRAM ICs is used to
support RAM memory of 4GB. These DDR4 devices operates at 2666Mbps data rate. In Kintex Ult FPGA SOM, Bank64, 65
& 66 is used for FPGA DDR4 SDRAM1 interface. The RAM size can be expandable up to maximum of 16GB based on the availability
of higher density 16bit DDR4 device.
The Kintex Ult FPGA SOM supports 300MHz LVDS DDR4 reference clock from on board clock synthesizer and connected to
Bank64 AT21 & AT22 dedicated clock input pins through AC Coupling capacitors.
Note: Kintex Ult FPGA SOM with -2 & -3 speed grade FPGA can support up to 2666Mbps data rate for FPGA DDR4.
2.3.2.2
DDR4 SDRAM2 with ECC
The Kintex Ult FPGA SOM supports 64bit, 4GB DDR4 RAM memory for FPGA
’s FPGA.
Four 16 bit, 1GB DDR4 SDRAM ICs is
used to support RAM memory of 4GB. These DDR4 devices operates at 2666Mbps data rate. In Kintex Ult FPGA SOM,
Bank69, 70 & 71 is used for FPGA SDRAM2 DDR4 interface. Also, Both SDRAM1 and SDRAM2 supports two 4bit ECC for RAM
memory. The RAM size can be expandable up to maximum of 16GB based on the availability of higher density 16bit DDR4 device.
The Kintex Ult FPGA SOM supports 300MHz LVDS DDR4 reference clock from on board clock synthesizer and connected to
Bank71 J26 & H26 dedicated clock input pins through AC Coupling capacitors.
Note: Kintex Ult FPGA SOM with -2 & -3 speed grade FPGA can support up to 2666Mbps data rate for FPGA DDR4.
