AMBA AXI and ACE Protocol Specification AXI3, AXI4, and AXI4-Lite, ACE and ACE-Lite. This document is only available in a PDF version to registered ARM. AMBA® AXI4 (Advanced eXtensible Interface 4) is the fourth generation of the AMBA interface specification from ARM®. Xilinx Vivado Design Suite and. Download both the ABMA AXI4-Stream Protocol Specification and AMBA AXI Protocol. Specification v What is AXI? AXI is part of ARM.
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The AXI4-Stream protocol is designed for unidirectional data transfers from master to slave with greatly reduced signal routing. Key features of the protocol are: This bus has an address and data phase similar to AHB, but a much reduced, low complexity signal list for example no bursts.
AMBA AXI and ACE Protocol Specification AXI3, AXI4, and AXI4-Lite, ACE and ACE-Lite
Enables Xilinx to efficiently deliver enhanced native memory, external memory interface and memory controller solutions across spscification application domains. 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 3rd party partner IP easier Saves design effort because AXI4 IP are already optimized for the specificaation performance, maximum throughput and lowest latency.
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:.
Key features of the protocol are:. Views Read Edit View history.
The interconnect is decoupled from the interface Extendable: APB is designed for low bandwidth control accesses, for example register interfaces on system peripherals. All interface subsets specifiation the same transfer protocol Fully specified: It facilitates development of multi-processor designs with large numbers of controllers and peripherals with a bus architecture.
Since its inception, the scope of AMBA has, despite its name, gone far beyond microcontroller devices.
AMBA AXI Protocol Specification
ChromeFirefoxInternet Explorer 11Safari. The AXI4 protocol is an update to AXI3 which is xxi to enhance the performance and utilization of the interconnect when used by multiple masters. The AMBA specification defines an on-chip communications standard for designing high-performance embedded microcontrollers.
It includes the following enhancements: The key features of the AXI4-Lite interfaces are:. Please upgrade to a Xilinx.
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 includes the following enhancements:. Tailor the interconnect to meet system goals: Includes standard models and checkers for designers to use Interface-decoupled: Computer buses System on a chip.
AMBA AXI4 Interface Protocol
AMBA is a solution for the blocks to interface with each other. Access to the target device is controlled through a MUX aithereby admitting bus-access to one bus-master at a time. Interfaces are listed by their speed in the roughly ascending order, so the interface at the end of each section should be the fastest.
Supports both memory mapped and streaming type interfaces Provides akba unified interface on IP across communications, video, embedded and DSP functions Is easy to use, with features specificatio 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.
Enables you to build the most compelling products for your target markets.
Performance, Area, and Power. AXI4-Lite is a subset of the AXI4 protocol intended for communication with simpler, smaller specificatioon register-style interfaces in components. The key features of the AXI4-Lite interfaces are: These protocols are today the de facto standard for embedded processor bus architectures because they are well documented and can be used without royalties.
Advanced Microcontroller Bus Architecture
Forgot your username or password? Ready for adoption by customers Standardized: This subset simplifies the design for a bus with a single master. The timing aspects and the voltage levels on the bus are not dictated by the specifications. 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.
An important aspect of a SoC is not only which components or blocks it houses, but also how they interconnect. Xilinx users will enjoy a wide range of benefits with the transition apecification AXI4 as a common user interface for IP.