AMBA® AXI4 (Advanced eXtensible Interface 4) is the fourth generation of the AMBA interface specification from ARM®. Xilinx Vivado Design Suite and. The protocol used by many SoC today is AXI, or Advanced eXtensible Interface, and is part of the ARM Advanced Microcontroller Bus Architecture (AMBA). Advanced eXtensible Interface, or AXI, is part of ARM’s AMBA The AXI protocol is based on a point to point interconnect to avoid bus sharing.

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Advanced Microcontroller Bus Architecture – Wikipedia

A detailed overview on the use of cookies and other website information is located in our Privacy Policy. This subset simplifies the design for a bus with a single master. Interfaces are listed by their speed in the roughly ascending order, so the interface at the end of each section should be the fastest. Ajba is supported by ARM Limited with wide cross-industry participation.

In the case of writing information, the response channel is used at the completion of the data transfer.

This page was last edited on 28 Novemberat Your question was not submitted. Key features of the protocol are:.

Views Read Edit View history. The key pdotocol of the AXI4-Lite interfaces are: It includes the following enhancements: Since its inception, the scope of AMBA has, despite its name, gone far beyond microcontroller devices. Introduction to AXI Protocol.

AXIthe third generation of AMBA interface defined in the AMBA 3 specification, is targeted at high performance, high clock frequency system protoco and includes features that make it suitable for high speed sub-micrometer interconnect:. We use cookies to ensure we give you the best user experience and to provide you with content we believe will be of relevance to you.


An important aspect of a SoC is not only which components or blocks it houses, but also how ambw interconnect. Enables you to build the most compelling products for your target markets. Ask Us a Question x. Performance, Area, and Power. Knowing the differences between these devices, I was interested in why each IP Core was able to share this common interface. Key features of the protocol are: All interface subsets use the same transfer protocol Fully specified: The timing aspects and the voltage levels on the bus are not dictated by the specifications.

Retrieved from ” https: Please upgrade to a Xilinx. Xilinx users will enjoy a wide protocpl of benefits with the transition to AXI4 as a common user interface peotocol IP. The key features of the AXI4-Lite interfaces are:.

AMBA AXI and ACE Protocol Specification AXI3, AXI4, and AXI4-Lite, ACE and ACE-Lite

AXI4-Lite is a subset of the AXI4 protocol intended for communication with simpler, smaller control register-style interfaces in components. Access to the target device is controlled through a MUX non-tristatethereby admitting bus-access to one bus-master at a time. After both signals are active, transmission may occur on that channel. The AXI4-Stream protocol is protcool for unidirectional data transfers from master to slave with greatly reduced signal routing. All transactions lrotocol a burst length of one All data accesses are the same size as the width of the data bus Exclusive accesses are not supported AXI4-Stream The AXI4-Stream protocol is designed for unidirectional data transfers from master to slave with greatly reduced signal routing.

AMBA AXI4 Interface Protocol

azi The AXI4 protocol is an update to AXI3 which is designed to enhance the performance and utilization of the interconnect when used by multiple masters.

For this prrotocol protocols need to be established, such as letting others speak without interruption, or facing those you are addressing. Burst type communication allows for continuous transfer of data.


Consolidates broad array of interfaces into one AXI4so users only need to know one family of interfaces Makes integrating IP from different domains, as well as developing your own or anba party partner IP easier Saves design effort because AXI4 IP are already optimized for the highest performance, maximum throughput and lowest latency.

When part of a team, your group can become more capable than a single individual, but only if your team can work together and communicate effectively. Once I understood the basic idea of the AXI protocol it was much easier to understand the tutorial I was going through.

The specifications of the protocol are quite simple, and are summarized below: Enables Xilinx to efficiently deliver enhanced native memory, external memory interface and memory controller solutions across all application domains. Supports both memory mapped and streaming type interfaces Provides a unified interface on IP across communications, video, embedded and DSP functions Is easy to use, with features like automatic pipeline instantiation to help you more easily hit a specific performance target Is wxi to or better than current solutions in key attributes, such as fMAX, LUT usage, latency, and bandwidth.

The protocol is that easy!

The project I was building in Amha was no longer just a bunch of blocks with random connections, but instead were the various peripherals of the TySOM board all connected with a common bus interface. Tailor the interconnect to meet system goals: It includes the following enhancements:. A simple transaction on the AHB consists of an address phase and a subsequent data phase without wait states: Please contact us using Feedback form.