DDR interface provides full support for the DDR interface, compatible with JESD79F specification and DFI-version 2.0 or higher Specification Compliant. Through its DDR compatibility, it provides a simple interface to a wide range of low-cost devices. DDR IP is proven in FPGA environment. The host interface of the DDR can be simple interface or can be AMBA AHB, AMBA AHB-Lite, AMBA APB, AMBA AXI, AMBA AXI-Lite, Tilelink, OCP, VCI, Avalon, PLB, Wishbone or Custom protocol.
Supports DDR protocol standard JESD79F Specification.
Compliant with DFI-version 2.0 or higher Specification.
Supports all the DDR commands as per the specs. Supports up to 16 AXI ports with data width upto 512 bits.
Supports controllable outstanding transactions for AXI write and read channels
Supports in port arbitration and multi port arbitration.
Supports user programmable page policy.
Supports Error Checking and correction (ECC).
Supports retry on ECC error, with retry limit user controllable.
Supports high clock speeds in ASIC and FPGA. Supports low latency for write and read path. Supports reordering of transactions for higher performance.
Supports all device speeds as per specification. Supports Programmable CAS latency.
Supports Programmable burst lengths: 2,4 and 8. Supports Write data Mask.
Supports the X4, X8, X16 devices.
Supports the 64MB, 128MB, 256MB, 512MB, 1GB memory densities.
Supports the following burst types.
Supports burst order.
Supports for All Mode registers programming. Supports for Extended Mode registers
programming.
Supports Auto refresh & self refresh modes.
Supports Auto precharge option for each burst access.
Supports Power Down features.
Supports input clock stop and frequency change. Supports DLL operation.
Fully synthesizable
Static synchronous design.
Positive edge clocking and no internal tri-states. Scan test ready
Simple interface allows easy connection to microprocessor/microcontroller devices
Deliverables
The DDR interface is available in Source and netlist products.
The Source product is delivered in plain text Verilog. If needed VHDL, SystemC code can also be provided.
Easy to use Verilog Test Environment with Verilog Testcases
Lint, CDC, Synthesis, Simulation Scripts with waiver files
IP-XACT RDL generated address map
Firmware code and Linux driver package Documentation contains User's Guide and Release notes.
Benefits
Single site license option is provided to companies designing in a single site.
Multi sites license option is provided to companies designing in multiple sites.
Single Design license allows implementation of the IP Core in a single FPGA bitstream and ASIC.
Unlimited Designs, license allows implementation of the IP Core in unlimited number of FPGA bitstreams and ASIC designs.
