DDR4/5 Controller

Overview

DDR4 (Double Data Rate 4) is the fourth generation of synchronous dynamic random-access memory (SDRAM) used in modern computing systems. DDR4 RAM is a type of computer memory widely utilised in modern computing devices. It represents an advancement over its predecessor, DDR3 RAM, providing enhanced data transfer rates, greater bandwidth, and improved power efficiency.

DDR5 Verification IP provides an effective & efficient way to verify the components interfacing with DDR5 interface of an ASIC/FPGA or SoC. DDR5 VIP is fully compliant with Standard DDR5 specification from JEDEC. This VIP is a light weight with an easy plug-and-play interface so that there is no hit on the design time and the simulation time.

diagram

Features

DDR4

  • Improved Performance: DDR4 RAM outperforms DDR3 with higher data transfer rates, boosting overall system performance. Achieved through advancements like increased prefetch length, higher frequency support, and improved command bus efficiency.
  • Increased Bandwidth: DDR4 offers greater bandwidth per module compared to DDR3, facilitating simultaneous transfer of larger data volumes. Crucial for demanding tasks such as gaming, video editing, and scientific simulations.
  • Lower Voltage Requirements: Operating at 1.2V (versus DDR3’s 1.5V), DDR4 enhances power efficiency and reduces heat generation. Contributes to extended battery life in mobile devices and lowers overall power consumption in desktops and servers.
  • Increased Higher Density and Capacity: Supports higher module densities and capacities per module than DDR3, enabling larger memory configurations. Essential for managing complex applications and extensive datasets in servers and high-end workstations.
  • Improved Reliability: Integrates enhanced error detection and correction (ECC) capabilities, ensuring robust data integrity. Critical for mission-critical applications where data accuracy and reliability are paramount.
  • Backward Compatibility: While DDR4 operates differently (voltage and physical slot) from DDR3, modern motherboards support both DDR3 and DDR4 modules. Provides flexibility for upgrades and system compatibility, accommodating diverse user needs and hardware configurations.

DDR5

  • Compliant to JEDEC DDR5 SDRAM Specification.
  • Supports connection to any DDR5 Memory Controller IP communicating with a JEDEC compliant DDR5 Memory Model.
  • Supports configurable SDRAM addressing of different sizes (x4,x8 and x16).
  • Available in all memory sizes from up to 64 Gb.
  • Supports Data Bus Inversion(DBI).
  • Supports Cyclic Redundancy Check (CRC).
  • Support for all speed-grades/speed-bins.
  • Supports Programmable burst lengths.
  • Supports configurable timing parameters and rank associations.
  • Supports capturing all the valid DDR5 commands including Activate, Read Write, Precharge.
  • Supports CA parity for command/address bus.
  • Supports Power-up Reset and initialization sequences.
  • Supports Precharge Power-Down, Active Power-Down, Self-Refresh operation.
  • Reports various timing errors, which can be used to check any timing violations.
  • Provides full control to the user to enable / disable various types of messages.
  • Supports full timing models or bus functional models.
  • Support for Multiple Ranks architecture.
  • Supports advanced SystemVerilog features like constrained random testing.
  • Supports dynamically configurable modes.
  • Strong Protocol Monitor with real time exhaustive programmable checks.
  • Supports Dynamic as well as Static Error Injection scenarios.
  • On the fly protocol checking using protocol check functions, static and dynamic assertion.
  • Built in Coverage analysis.
  • Provides a comprehensive user API (callbacks) in Monitor, Controller and Memory Model BFMs.
  • Graphical analyser to show transactions for easy debugging.

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