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T2M DDR GDDR6X Controller IP

GDDR6X Controller IP

Description and Features

GDDR6X interface provides full support for the GDDR6X interface, compatible with GDDR6X protocol draft specification and DFI-version 4.0 or 5.0 Specification Compliant. Through its GDDR6X compatibility, it provides a simple interface to a wide range of low-cost devices. GDDR6X IP is proven in FPGA environment. The host interface of the GDDR6X 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.



  • Supports GDDR6X protocol draft specification.
  • Compliant with DFI-version 4.0 or 5.0 Specification.
  • Supports all the GDDR6X 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 2 separate independent channels with point-to-point interface for data, address and command.
  • Supports Double Data Rate (DDR).
  • Supports up to 8GB device density.
  • Supports X8 and X16 Mode.
  • 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 WRITE Data mask function (single/double byte mask).
  • 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 Vendor ID for device identification.
  • Supports COMMAND ADDRESS, WCK2CK,READ/WRITE Training mode’s.
  • Supports IEEE.1149.1 boundary scan operation.
  • Supports all mode registers programming.
  • Supports for power down features.
  • Supports programmable clock frequency of operation.
  • 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


  • The GDDR6X interface is available in Source and netlist products.
  • The Source product is delivered in plain text 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.