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Ixiasoft
Visible to Intel only — GUID: hfc1551901785971
Ixiasoft
1.9. External Memory and General Purpose I/O
Intel® Agilex™ devices offer substantial external memory bandwidth. This bandwidth is provided along with the ease of design, lower power, and resource efficiencies of hardened high-performance memory controllers. The external memory interfaces can be configured up to a maximum width of 72 bits when using either hard or soft memory controllers.
Each I/O bank contains 96 general purpose I/Os and two high-efficiency hard memory controllers capable of supporting many different memory types, each with different performance capabilities. The hard memory controller is also capable of being bypassed and replaced by a soft controller implemented in the user logic. The I/Os each have a hardened double data rate (DDR) read/write path (PHY) capable of performing key memory interface functionality such as:
- Read/Write leveling
- FIFO buffering to lower latency and improve margin
- Timing calibration
- On-chip termination
The timing calibration is aided by the inclusion of hard microcontrollers based on Nios® II technology, specifically tailored to control the calibration of multiple memory interfaces. This calibration allows the Intel® Agilex™ device to compensate for any changes in process, voltage, or temperature either within the Intel® Agilex™ device itself or within the external memory device. The advanced calibration algorithms ensure maximum bandwidth and robust timing margin across all operating conditions.
External Memory Interface | Memory Controller Type | Performance |
---|---|---|
DDR4 | Hard | 3,200 Mbps |
QDRIV | Soft | 2,133 Mbps |
External Memory Interface | Memory Controller Type | Performance |
---|---|---|
DDR4 | Hard | 3,200 Mbps |
DDR5 | Hard | 5,600 Mbps |
QDRIV | Soft | 2,133 Mbps |
LPDDR5 | Hard | 5,500 Mbps |
Intel® Agilex™ devices also feature general purpose I/Os capable of supporting a wide range of single-ended and differential I/O interfaces, including 1.5 V true differential signaling compatible with LVDS/ RSDS/ Mini-LVDS/ LVPECL. The LVDS compatible solution rates up to 1.6 Gbps are supported.