GDDR7 Memory Model

Overview

Key Features

• Supports GDDR7 memory devices from all leading vendors.
• Supports 100% of GDDR7 protocol draft JEDEC specification.
• Supports all the GDDR7 commands as per the specs.
• Supports 4 separate independent channels with point-to-point interface for data, address and command.
• Supports command parity
• Supports Double Data Rate (DDR)
• Supports Pseudo channel mode operation.
• Supports 16 - 64 Gbit densities
• Supports X8 mode.
• Supports RDQS Mode.
• Supports DQ preamble.
• Supports Bank group features.
• Supports Programmable Read/Write latency.
• Supports Bank grouping and 16 internal banks per channel.
• Supports Data bus inversion (DBI) & Command Address bus inversion (CABI).
• Supports Read/Write data transmission integrity secured by cyclic redundancy check.
• Supports ECC.
• Supports Input/output PLL/DLL on/off mode.
• Supports Read/Write EDC on/off mode.
• Supports Programmable EDC hold pattern for CDR.
• Supports Programmable CRC Read/Write latency.
• Supports Low Power modes.
• Supports Auto refresh & self-refresh modes.
• Supports On-die termination operation.
• Supports Command Address, WCK2CK, Read and Write Training mode’s.
• Supports IEEE.1149.1 boundary scan operation.
• 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 callbacks for user to get command data on bus.
• Supports all mode registers programming.
• Supports for power down features.
• Supports for input clock stop and frequency change.
• Quickly validates the implementation of the draft GDDR7 protocol JEDEC specification.
• Bus-accurate timing for min, max and typical values.
• Constantly monitors GDDR7 behavior during simulation.
• Protocol checker fully compliant with GDDR7 draft JEDEC specification.
• 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 GDDR7 designs.
• Easy to use command interface simplifies monitor control and configuration.
• Simplifies results analysis.
• Runs in every major simulation environment.

Block Diagram

Deliverables

• Complete regression suite containing all the GDDR7 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