Home · Documentation; ihi; d – AMBA AXI and ACE Protocol Specification AXI3, AXI4, and AXI4-Lite, ACE and ACE-Lite. AMBA Specification. (Rev ). © Copyright to design modules that conform to the AMBA specification. .. Interfacing rev D APB peripherals to rev APB. . purpose of AMBA AHB or APB protocol descriptions is defined. 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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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. 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. The key features of the AXI4-Lite interfaces are: Performance, Area, and Power.
The interconnect is decoupled from the interface Extendable: It includes the following enhancements:.
AMBA AXI Protocol Specification
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The AXI4-Stream specifictaion is designed for unidirectional data transfers from master to slave with greatly reduced signal routing. Xilinx users will enjoy a wide range of benefits with the transition to AXI4 as a common user interface for IP.
All transactions have a burst length of one All data accesses are the same size as the width of the data bus Exclusive specificayion are not supported AXI4-Stream The AXI4-Stream protocol is designed for unidirectional data transfers from master to slave with greatly reduced signal routing. Ready for adoption by customers Standardized: AXI4 is open-ended to support future needs Additional benefits: 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.
Enables Xilinx to efficiently deliver enhanced native memory, external memory interface and memory controller solutions across all application domains.
Key v.0 of the protocol are:.
All interface subsets use the same transfer protocol Fully specified: Key features of the protocol are: The key features of the AXI4-Lite interfaces are:. It includes the following enhancements: AXI4-Lite is a subset of the AXI4 protocol intended for communication with simpler, smaller control register-style interfaces in components.
AMBA AXI4 Interface Protocol
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 highest performance, wmba throughput and lowest latency.
Tailor the interconnect to meet system goals: Enables you to build the most compelling products for your target markets. 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 equal to or better than current solutions in key attributes, such as fMAX, LUT usage, latency, and bandwidth.
Includes standard models and checkers for designers to use Interface-decoupled: