ARM releases AMBA 4 specification to improve performance and efficiency of on-chip communication systems
ARM today introduced the brand-new AMBA 4 first-stage specification, which provides more powerful functions and higher efficiency for complex media-rich on-chip communications.
The AMBA specification is the de facto standard for system-on-chip interconnection. It has been introduced by ARM for more than 15 years. Similar to the previous version of AMBA 3 launched in 2003, the AMBA 4 specification was designed for the industry by up to 35 companies including industry-leading OEMs, semiconductors, and EDA suppliers.
The AMBA 4 Phase 1 specification includes a definition of the extended AXI interconnect protocol series (including AXI4, AXI4-Lite, and AXI4-Stream). The AXI4 protocol adds support for longer Burst operation and quality of service (QoS) signals, and is a natural upgrade of the AMBA3 specification. Long Burst operation can better achieve the transmission of large amounts of data at the device integration level, and quality of service (QoS) signals can help manage the delay and bandwidth in complex multi-host systems.
The newly introduced AMBA4 specification and AXI4 protocol have also been extended to meet the needs of FPGA implementation. As a subset of the AXI4 specification, AXI4-Lite is mainly aimed at a simple control register interface, helping to reduce the wiring congestion of the system-on-chip and simplify the implementation. The AXI4-Stream protocol provides an effective streaming interface for non-address-based, point-to-point communications (such as video and audio data).
Keith Clarke, vice president and general manager of the ARM Fabric IP processor division, said: "These specifications fully reflect ARM's continuous technological development and innovation in the field of on-chip communications, and the unremitting efforts to push the AMBA specification to many new areas (such as the FPGA community) . Standards widely used in the industry such as AMBA can not only bring significant benefits in design reuse, but also improve efficiency and interoperability. These can be applied to all aspects of design. The AMBA4 specification will enable embedded system design in performance and The level of efficiency reaches the level that only desktop computers, laptops and network equipment can reach in the past. "
The first companies to adopt these new specifications include: Arteris, Cadence, Mentor, Sonics, Synopsys, and Xilinx.
Vin Ratford, senior vice president of global marketing and business development at Xilinx, said: "We have worked very closely with ARM on the definition, formulation and review of the AMBA 4 AXI4-Lite and AXI4-Stream specifications. With the chip The dividing line between the system and the system is becoming increasingly blurred. We need to adopt open standards like AMBA to make it possible for developers to combine the high-speed parallel processing performance that FPGAs can achieve with traditional processor systems. "
The second phase of the new AMBA 4 specification will be announced later in 2010. At that time, functions such as storage consistency and barrier support will be enhanced, which will simplify software developers' understanding of the computer subsystem while reducing the flow of traffic to external storage, further maximizing performance and power consumption efficiency.
The AMBA4 Phase 1 specifications include AXI4, AXI4-Lite and AXI4-Stream, which are available for download.
Balcony Light, Led Flat Panel Light, Ceiling Light Outdoor, Ceiling Light with Plug
Shenzhen Dianjiang Engineering Co. LTD , https://www.isourceled.com