The Advanced Microcontroller Bus Architecture (AMBA) specification defines an on-chip Even though the arbitration protocol is fixed, any arbitration algorithm. The ARM Advanced Microcontroller Bus Architecture (AMBA) is an open- standard, on-chip In the AMBA 4 specifications were introduced starting with AMBA 4 AXI4, AHB is a bus protocol introduced in Advanced Microcontroller Bus. Following diagram (reference from the AMBA spec) illustrates a traditional AMBA based SOC design that uses the AHB (Advanced High.

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Technical and de facto standards for wired computer buses.

Retrieved from ” https: Interfaces are listed by their speed in the roughly ascending ajb, so the interface at the end of each ah should be the fastest. By using this site, you agree to the Terms of Use and Privacy Policy. It is supported by ARM Limited with wide cross-industry participation. This page was last edited on 28 Novemberat A simple transaction on the AHB consists of an address phase and a subsequent data phase without wait states: Views Read Edit View history.


ARM AMBA 5 AHB Protocol Specification

This bus has an address and data phase similar to AHB, but a much reduced, low complexity signal list for example no bursts. These protocols are today the de facto standard for embedded processor bus architectures because they are well documented and can be used without royalties. AMBA is a solution for the blocks to interface with each other. Access to the target device is controlled through a MUX non-tristatethereby admitting bus-access to one bus-master at a time.

The AMBA specification defines an on-chip communications standard for designing high-performance embedded microcontrollers. APB is designed for low bandwidth control accesses, for example register interfaces on system peripherals.

It facilitates development of multi-processor designs with large numbers of controllers and peripherals with a bus architecture. The timing aspects and the voltage levels on the bus are not dictated by the specifications.

Since its inception, the scope of AMBA has, despite its name, gone far beyond microcontroller devices. An important aspect of a SoC is not only which components or blocks it houses, but also how they interconnect. From Wikipedia, the free encyclopedia.


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 protoocol. This subset simplifies the design for a bus with a single master.

Computer buses System on a chip.