DDR2 interface provides full support for the DDR2 interface, compatible with JESD79-2F specification and DFI-version 2.0 or higher Specification Compliant. Through its DDR2 compatibility, it provides a simple interface to a wide range of low-cost devices. DDR2 IIP is proven in FPGA environment. The host interface of the DDR2 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.
DDR2 Controller IIP is supported natively in Verilog and VHDL
- Features
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- Supports DDR2 protocol standard JESD79-2F Specification.
- Compliant with DFI-version 2.0 or higher Specification.
- Supports all the DDR2 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.
- Closed page policy
- Open 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 double data rate interface.
- Supports the following densities.
- 128MB
- 256MB
- 512MB
- 1GB
- 2GB
- 4GB
- Supports 8 internal banks.
- Supports the following devices.
- Supports all speed grades as per specification.
- Quickly validates the implementation of the DDR2 standard JESD79-2F.
- Supports Programmable Write latency and Read latency.
- Supports Programmable burst lengths: 4,8.
- Supports the following burst types.
- Supports for burst sequence.
- Supports for All Mode registers programming.
- Supports for Extended Mode registers programming.
- Supports for Write data Mask.
- Supports for Power Down features.
- Supports for Self Refresh mode.
- Supports Auto precharge option for each burst access.
- Supports for input clock stop and frequency change.
- Supports for ODT(On-Die Termination).
- Supports for DLL.
- 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
- Benefits
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- 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.
- Deliverables
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SmartDV's DDR2 IP contains following
- The DDR2 interface is available in Source and netlist products.
- The Source product is delivered in 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.
