Designing DDR3 SDRAM controllers with today's FPGAs
This article outlines the major differences between DDR3 and DDR2 SDRAM architecture and reviews them in the context of an FPGA-based reference design tested in hardware at 800 Mbps.
Vendor:
Xilinx, Inc.
Category:
DDR
DDR4 Controller
The Xilinx DDR4 controller is high performance (2667Mbps in UItraScale+) and supports a wide range of configurations from low cos…
Overview
The Xilinx DDR4 controller is high performance (2667Mbps in UItraScale+) and supports a wide range of configurations from low cost components to dense 128GB RDIMMs.
Key features
- Component support for interface width of 8 to 80 bits (RDIMM, UDIMM, and SODIMM support)
- 128 GB density device support
- x4, x8, and x16 device support
- 8:1 DQ:DQS ratio support for x8 and x16 devices
- 4:1 DQ:DQS ratio support for x4 devices
- Dual slot support for DDR4 DIMMs
- 8-word burst support
- Support for 9 to 24 cycles of column-address strobe (CAS) latency (CL)
- Self-Refresh and Save-Restore
- ODT / DBI support
- Support for 9 to 18 cycles of CAS write latency
- Write leveling support for DDR4 (fly-by routing topology required component designs)
- JEDEC-compliant DDR4 initialization support
- Source code delivery in Verilog
- 4:1 memory to FPGA logic interface clock ratio
- Open, closed, and transaction based pre-charge controller policy
- Interface calibration and training information available through the Vivado hardware manager
Specifications
Identity
Part Number
DDR4 Controller
Vendor
Xilinx, Inc.
Type
Silicon IP
Controller / PHY
Controller
Standards & Interfaces
Memory
DDR4
Files
Note: some files may require an NDA depending on provider policy.
Provider
HQ:
USA
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Frequently asked questions about DDR Interface IP
What is DDR4 Controller?
DDR4 Controller is a DDR IP core from Xilinx, Inc. listed on Semi IP Hub.
How should engineers evaluate this DDR?
Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this DDR IP.
Can this semiconductor IP be compared with similar products?
Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.