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Zynq Ult MPSoC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.5
Memory
2.5.1
DDR4 SDRAM with ECC for PS
The Zynq Ult MPSoC SOM supports 64bit, 4GB DDR4 RAM memory for
MPSoC’s
PS. Four 16 bit, 1GB DDR4
SDRAM ICs are used to support a total on board RAM memory of 4GB. Also, Zynq Ult MPSoC SOM supports
8bit ECC for RAM memory. These DDR4 devices operates at 1.2 voltage level. DDR4 memory is connected to the hard
memory controller of the MPSoC PS. The RAM size can be expandable up to maximum of 32GB based on the
availability of higher density 16bit DDR4 device.
section for exact RAM size used on the SOM based on the Product Part
Number.
2.5.2
DDR4 SDRAM for PL
The Zynq Ult MPSoC SOM supports 16bit, 1GB DDR4 RAM memory for
MPSoC’s
PL. One 16 bit, 1GB DDR4
SDRAM IC is used to support RAM memory of 1GB for PL. This device operates at 1.2 voltage level. In Zynq
Ult MPSoC SOM, Bank65 is used for PL DDR4 interface. The RAM size can be expandable up to maximum of
4GB based on the availability of higher density 16bit DDR4 device.
The Zynq Ult MPSoC SOM supports 300MHz LVDS Oscillator on board for PL DDR4 reference clock and
connected to Bank65 AG8 & AH8 dedicated clock input pins through AC Coupling capacitors.
section for exact RAM size used on the SOM based on the Product Part
Number.
2.5.3
eMMC Flash
The Zynq Ult MPSoC SOM supports 8GB eMMC Flash memory for Boot & Storage of Zynq Ult MPSoC
PS. This eMMC Flash memory is directly connected to the SD0 controller of the
MPSOC’s
PS through MIO pins and
operates at 1.8V Voltage level. This SD/SDIO controller supports eMMC4.51 standard with up to 8bit HS200 mode.
The eMMC Flash size can be expandable up to maximum of 128GB based on the availability of higher density eMMC
Flash device.
section for exact eMMC Flash size used on the SOM based on the Product Part
Number.