Home · Documentation; ihi; d – AMBA AXI and ACE Protocol Specification AXI3, AXI4, and AXI4-Lite, ACE and ACE-Lite. First release of V ARM contract references: LEC-PREV ARM AMBA Specification Licence AMBA AXI Protocol Specification. AMBA® AXI4 (Advanced eXtensible Interface 4) is the fourth generation of the AMBA interface specification from ARM®. Xilinx Vivado Design Suite and.

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AMBA AXI Protocol Specification

This subset simplifies the design for a bus with a single master. All interface subsets use the same transfer protocol Fully specified: Access to the target device is controlled through a MUX non-tristatethereby admitting bus-access to one bus-master pfotocol a time. Supports ;rotocol 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 equal to or better than current solutions in key attributes, such as fMAX, LUT usage, latency, and bandwidth.

Please upgrade to a Xilinx. These protocols are today the de facto standard for embedded processor bus architectures because they are well documented and can be used without royalties. It includes the following enhancements: An important aspect of a SoC is not only which components protpcol blocks it houses, but also how they interconnect.


Technical and de facto standards for wired computer buses. Includes standard models and checkers for designers to use Interface-decoupled: Retrieved from ” https: Xilinx users will enjoy a wide range of benefits with the transition to AXI4 as a common user interface for IP.

AMBA AXI Protocol Specification

Enables you to build the most compelling products for your target markets. All transactions have 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. AXIthe third generation of AMBA interface defined in the AMBA 3 specification, is targeted at high performance, high clock frequency system designs and includes features that make it suitable for high speed sub-micrometer interconnect:.

The key features of the AXI4-Lite interfaces are: Performance, Area, and Power. ChromeFirefoxInternet Explorer 11Safari.

Key features of the protocol are:. The interconnect is decoupled from the interface Speciication Key features of the protocol are: It includes the following enhancements:. It is supported by ARM Limited with wide cross-industry participation.

The key features of the AXI4-Lite interfaces are:. APB is designed for low bandwidth control accesses, for example register interfaces on system peripherals.

Advanced Microcontroller Bus Architecture

This bus has an address and data phase similar to AHB, but a much reduced, low complexity signal ar, for example no bursts.


AXI4-Lite is a subset of the AXI4 protocol intended for communication with simpler, smaller control register-style interfaces in components.

Support for burst lengths up to beats Quality of Service signaling Support for multiple region interfaces AXI4-Lite AXI4-Lite is a subset of the AXI4 protocol intended for communication with simpler, smaller control register-style interfaces in components. Since its inception, the scope of AMBA has, despite its name, gone far beyond microcontroller devices.

Computer buses System on a chip.

Views Read Edit View history. 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. Supports single and multiple data streams using the same set of shared wires Supports multiple data widths within the same interconnect Ideal for implementation in FPGAs. It facilitates development of multi-processor designs with large numbers of controllers and peripherals with a bus architecture.

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