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

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

5. Functional Description—HPC II Controller

The High Performance Controller II works with the UniPHY-based DDR2, DDR3, and LPDDR2 interfaces. The controller provides high memory bandwidth, high clock rate performance, and run-time programmability. The controller can reorder data to reduce row conflicts and bus turn-around time by grouping reads and writes together, allowing for efficient traffic patterns and reduced latency.

Note: The controller described here is the High Performance Controller II (HPC II) with advanced features for designs generated in the Quartus II software version 11.0 and later, and the Quartus Prime software. Designs created in earlier versions and regenerated in version 11.0 and later do not inherit the new advanced features; for information on HPC II without the version 11.0 and later advanced features, refer to the External Memory Interface Handbook for Quartus II version 10.1.