OVERVIEW

The AXI Network Interconnect (AXI NIC) is a scalable, high-performance IP for connecting processors, memory controllers, and peripherals in modern SoCs. Based on a configurable crossbar architecture, it provides low-latency, high-bandwidth, and protocol-compliant data transfer

The AXI NIC uses a scalable crossbar to traverse read and write transactions with deterministic latency of 4 cycles for requests and 3 cycles for responses. It supports cascading with NoC fabrics to scale to larger master and slave counts.

The AXI NIC provides extensive configurability to optimize system performance and integration. Arbitration policy is fully configurable to support different fairness, priority, and throughput requirements. Register mapping is configurable, enabling flexible address space organization aligned with system software and memory maps. A configurable AXI ordering block allows fine-grained control over transaction ordering behaviour to meet application-specific performance needs. The internal network data width is configurable, allowing designers to trade off bandwidth, power, and silicon area based on target system requirements.

Robust system control and reliability features are integrated into the AXI NIC. Advanced interrupt management enables efficient event signalling and system monitoring. Configurable per-channel watchdog timers detect stalled or abnormal transactions and support fault recovery mechanisms. Independent software-controlled reset for each master and slave interface enables localized reset and fault isolation without disrupting the entire interconnect.

To support complex clocking and power architectures, the AXI NIC allows each master and slave interface to operate at an independent clock frequency. Register slicing is supported for asynchronous interfaces, simplifying clock-domain crossings and improving timing closure. Internal clock gating is supported to reduce dynamic power consumption during idle or low-activity periods.

Delivered as a fully synthesizable RTL IP optimized for power, performance, and area (PPA), the AXI NIC integrates seamlessly into AMBA-based SoC infrastructures.By combining a scalable crossbar architecture, NoC cascade capability, rich configurability, and robust system management features, the AXI NIC provides a production-ready interconnect solution for embedded, compute, and high-performance SoC platforms.