Cyclone® V Hard Processor System Technical Reference Manual
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Ixiasoft
Visible to Intel only — GUID: sfo1410067609694
Ixiasoft
2.2.4.1. SDRAM Controller Subsystem
HPS and FPGA fabric masters have access to the SDRAM controller subsystem.
The SDRAM controller subsystem implements the following high‑level features:
- Support for double data rate 2 (DDR2), DDR3, and low-power double data rate 2 (LPDDR2) devices
- Error correction code (ECC) support, including calculation, single‑bit error correction and write-back, and error counters
- Fully-programmable timing parameter support for all JEDEC‑specified timing parameters
- All ports support memory protection and mutual accesses
- FPGA fabric interface with up to six ports that can be combined for a data width up to 256-bits wide using Avalon-MM and AXI interfaces.
The SDRAM controller subsystem is composed of the SDRAM controller, DDR PHY, control and status registers and their associated interfaces.