DDR4 DB Memory Model

Overview

DDR4 DB Memory Model provides an smart way to verify the DDR4 DB component of a SOC or a ASIC. The SmartDV's DDR4 DB memory model is fully compliant with DDR4 DB Standard of JESD82-32A and DDR4 Standard JESD79-4B and provides the following features. Better than Denali Models.

DDR4 DB Memory Model is supported natively in SystemVerilog, VMM, RVM, AVM, OVM, UVM, Verilog, SystemC, VERA, Specman E and non-standard verification env

DDR4 DB Memory Model comes with optional Smart Visual Protocol Debugger (Smart ViPDebug), which is GUI based debugger to speed up debugging.

Key Features

  • Supports DDR4 DB devices from all leading vendors.
  • Supports 100% of DDR4 DB protocol standard JESD82-32A and DDR4 Protocol standard JESD79-4B.
  • Supports all the DDR4 DB commands as per the specs.
  • Supports all speed grades as per specification.
  • Supports Data buffer power down modes.
  • Supports Dual frequency(Input clock frequency change).
  • Supports for parity checking.
  • Supports Command sequence error detection and error handling.
  • Supports read commands and MPR override reads.
  • Supports Per DRAM Addressability.
  • Supports for BCW write and read commands.
  • Supports for Function spaces(F0-F7).
  • Supports Per Buffer Addressability.
  • Supports for transparent mode.
  • Supports following training modes
    • DRAM Interface write leveling
    • Host interface write leveling
    • DRAM-to-DB Read delay(MRD) Training mode
    • DB-to-DRAM Write Delay (MWD) Training Mode
    • Host interface Read training
    • Host interface Write training(HIW) mode
  • Supports for optional NVDIMM feature.
  • Quickly validates the implementation of the DDR4 DB standard JESD82-3A.
  • Checks for following
    • Check-points include power up initialization and power off rules
    • State based rules, Active Command rules
    • Read/Write Command rules etc.,
  • Protocol checker fully compliant with DDR4 DB Specification JESD82-32A.
  • Constantly monitors DDR4 DB behavior during simulation.
  • Models, detects and notifies the test bench of significant events such as transactions, warnings, timing and protocol violations.
  • Built in functional coverage analysis.
  • Supports Callbacks, so that user can access the data observed by monitor.

Benefits

  • Faster testbench development and more complete verification of DDR4 DB designs.
  • Easy to use command interface simplifies monitor control and configuration.
  • Simplifies results analysis.
  • Runs in every major simulation environment.

Block Diagram

DDR4 DB Memory Model Block Diagram

Deliverables

  • Complete regression suite containing all the DDR4 DB testcases.
  • Examples showing how to connect and usage of Model.
  • Detailed documentation of all class, task and function's used in verification env.
  • Documentation also contains User's Guide and Release notes.

Technical Specifications

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