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GDDR5X Memory Model

GDDR5X Memory Model

GDDR5X Memory Model provides an smart way to verify the GDDR5X component of a SOC or a ASIC. The SmartDV's GDDR5X memory model is fully compliant with standard GDDR5X Specification and provides the following features. Better than Denali Memory Models.

GDDR5X Memory Model is supported natively in SystemVerilog, VMM, RVM, AVM, OVM, UVM, Verilog, SystemC, VERA, Specman E and non-standard verification env

GDDR5X Memory Model comes with optional Smart Visual Protocol Debugger (Smart ViPDebug), which is GUI based debugger to speed up debugging.

Features
  • Supports GDDR5X memory devices from all leading vendors.
  • Supports 100% of GDDR5X protocol standard JESD232 and JESD232A.
  • Supports all the GDDR5X commands as per the specs.
  • Quickly validates the implementation of the GDDR5X standard JESD232 and JESD232A.
  • Supports for all types of timing and protocol violation detection.
  • Supports up to 16GB device density.
  • Supports the following device modes.
    • X16
    • X32
  • Supports for All Mode register programming.
  • Checks for following
    • Check-points include power on, Initialization and power off rules,
    • State based rules, Active Command rules,
    • Read/Write Command rules etc.
    • All timing violations.
  • Supports for Single ended interface for command, address and data.
  • Supports for QDR and DDR operating mode.
  • Supports for Programmable read latency and write latency.
  • Supports for Write data mask function via address bus.
  • Supports for Data bus inversion (DBI) & address bus inversion (ABI).
  • Supports for Input/output PLL/DLL.
  • Supports for Address training.
  • Supports for RDQS Mode.
  • Supports for Bank group features.
  • Supports for DQ preamble.
  • Supports for cyclic redundancy check (CRC-8).
  • Supports for Programmable CRC read latency and write latency.
  • Supports for Low Power modes.
  • Supports for Auto Precharge option for each burst access.
  • Supports for On-die termination (ODT) for all high-speed inputs.
  • Supports Mirror function with MF pin.
  • Supports IEEE 1149.1 compliant boundary scan.
  • Supports for input clock stop and frequency change.
  • Constantly monitors GDDR5X behavior during simulation.
  • Protocol checker fully compliant with GDDR5X Specification JESD232 and JESD232A.
  • 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 GDDR5X designs.
  • Easy to use command interface simplifies monitor control and configuration.
  • Simplifies results analysis.
  • Runs in every major simulation environment.
GDDR5X Verification Env

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    SmartDV's GDDR5X Verification env contains following.

  • Complete regression suite containing all the GDDR5X 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.

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