ZYNQ Ultr FPGA Board AXU2CGA/B User Manual
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Part 3: DDR4 DRAM
There are two Micron DDR4 chips on the PS side of the AXU2CGA board,
which form a 32-bit data bus bandwidth and a total capacity of 1GB. There are
4 Micron DDR4 chips on the PS side of the AXU2CGB board, which form a
64-bit data bus bandwidth and a total capacity of 2GB. The maximum operating
speed of DDR4 SDRAM on the PS side can reach 1200MHz (data rate
2400Mbps). The specific configuration of DDR4 SDRAM is shown below.
Among them, U71 and U72 are only AXU2CGB mounted.
Location
Capacity
Manufacturer
U3,U5,(U71,U72)
256M x 16bit
Micron
Table 3-1: DDR4 SDRAM Configuration
The hardware connection of DDR4 on the PS side is shown in Figure 3-1:
Figure 3-1: PS Side DDR4 DRAM Schematic
AXU2CGA PS side DDR4 SDRAM Pin Assignment:
Signal Name
Pin Name
Pin Number
PS_DDR4_DQS0_P
PS_DDR_DQS_P0_504
AF21
PS_DDR4_DQS0_N
PS_DDR_DQS_N0_504
AG21
PS_DDR4_DQS1_P
PS_DDR_DQS_P1_504
AF23
PS_DDR4_DQS1_N
PS_DDR_DQS_N1_504
AG23
