External Memory Interface Handbook Volume 3: Reference Material: For UniPHY-based Device Families

ID 683841
Date 3/06/2023
Document Table of Contents

8.2. Features

The RLDRAM 3 UniPHY-based IP supports features available from major RLDRAM 3 device vendors at speeds of up to 800 MHz.

The following list summarizes key features of the RLDRAM 3 UniPHY-based IP:

  • support for Arria V GZ and Stratix V devices
  • standard AFI interface between the PHY and the memory controller
  • quarter-rate and half-rate AFI interface
  • maximum frequency of 533 MHz for half-rate operation and 800 MHz for quarter-rate operation
  • burst length of 2, 4, or 8
  • x18 and x36 memory organization
  • common I/O device support
  • nonmultiplexed addressing
  • multibank write and refresh protocol (programmable through mode register)
  • optional use of data mask pins

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