AMBA AXI

Integrates MAC IP to a broad range of PHY and SerDes IP

Overview

AMBA AXI (Advanced eXtensible Interface) is a widely used protocol in System-on-Chip (SoC) designs, developed by ARM Holdings. It facilitates communication between IP cores in an SoC, providing a high-performance, low-latency interface. AMBA AXI is part of the ARM Advanced Microcontroller Bus Architecture (AMBA) specifications, designed to support the requirements of high-bandwidth, low-latency interconnects for on-chip communication.

The AMBA AXI protocol is a high performance, high throughput bus interface standard designed for modern SoCs. It offers a synchronous, asynchronous and non blocking approach to data transfer, enabling efficient communication between different components like processors, memory controllers, peripherals and custom logic. AXI defines a set of specific signals for addressing data transfer and control operations ensuring standardized communication between diverse components within an SoC.

diagram

Features

  • High Bandwidth: AXI is known for its high bandwidth capabilities, enabling efficient data transfer at high speeds. This is achieved through the use of dedicated channels for address and data transfer, along with the non-blocking nature of the protocol.
  • Scalability: AXI is highly scalable, allowing for the interconnection of multiple masters and slaves, facilitating complex SoC designs. The protocol’s flexibility allows for the creation of hierarchical bus structures, enabling the efficient interconnection of various components.
  • Flexibility: AXI offers flexibility in its implementation, allowing for customised configurations to meet specific design requirements. This includes support for different data widths, burst lengths, and access modes, catering to diverse application scenarios.
  • Interoperability: AXI’s standardisation promotes interoperability between different components from various vendors, ensuring seamless integration and reducing design complexities. This interoperability fosters innovation and allows for the adoption of diverse components within SoCs..

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