This book is for the AMBA APB Protocol Specification. Intended audience. This book is written for hardware and software engineers who want. to design modules that conform to the AMBA specification. Organization purpose of AMBA AHB or APB protocol descriptions is defined. interconnect specification for the purpose of connecting and managing functional The APB is the member of the AMBA 3 protocol family which implements a.

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JavaScript seems to be disabled in your browser. 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:.

Computer buses System on a chip.

The timing aspects and the voltage levels on the bus are not dictated by the specifications. Technical documentation is available as a PDF Download.

Title for Topic

A simple transaction on the AHB consists of an address phase and a subsequent data phase without wait proticol Technical and de facto standards specifiation wired computer buses.

Accept and hide this message. The AMBA specification defines an on-chip communications standard for designing high-performance embedded microcontrollers. Error responses are returned to the master. APB is designed for low bandwidth control accesses, for example register interfaces on system peripherals.

Interfaces are listed by their speed in the roughly ascending order, so the interface at the end of each section should be the fastest.

By disabling cookies, some features of the site will not work. Therefore, when you connect a narrower transaction to a wider APB slave, the slave cannot determine which byte lane to write.


APB is a non-bursting interface. If you are not happy with the spefification of these cookies, please review our Cookie Policy to learn how potocol can be disabled. Was this page helpful? Sorry, your browser is not supported. As a workaround, you can group PSELx, and then send the packet to the slave directly. Since its inception, the scope of AMBA has, despite its name, gone far beyond microcontroller devices.

AMBA APB Protocol Specification v | AMBA APB Protocol Specification v – Arm Developer

By using this site, you agree to the Terms of Use and Privacy Policy. We recommend upgrading your browser. This subset simplifies the design for a bus with a single master. An important aspect of a SoC is not only which components or blocks it specifocation, but also how they interconnect. Views Read Edit View history.

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.

Advanced Microcontroller Bus Architecture

APB Advanced Peripheral Bus interface is optimized for minimal power consumption and reduced interface complexity.

By continuing to use our site, you consent to our cookies. Signal transitions are sampled at the rising edge of the clock to enable the integration of APB peripherals easily into any design flow.

This page was last edited on 28 Novemberat You copied the Doc URL to your specifiaction. You must have JavaScript enabled in your browser to utilize the functionality of this website. In this case, the slave data may be overwritten or corrupted.

This site uses cookies to store information on your computer. Over the next few months we will be adding more developer resources and documentation for all the products and technologies that ARM provides. It facilitates development of multi-processor designs with large numbers of controllers and peripherals with a bus architecture. We appreciate your feedback.


AVIP for AMBA APB | Cadence IP

It is supported by ARM Limited with wide cross-industry participation. From Wikipedia, the free encyclopedia.

These protocols are today the de facto standard for embedded processor bus architectures because they are well documented and can be used without royalties. Important Information for the Arm website.

APB does not support Write Strobe. You can use APB to interface to peripherals which are low-bandwidth and do not require the high performance of a pipelined bus interface. When connecting a wider master to a narrower APB slave, the width adapter converts the wider transactions to a narrower transaction to fit the APB slave data width. Retrieved from ” https: We have done our best to make all the documentation and resources available on old versions of Internet Explorer, but vector image support and the layout may not be optimal.

You should then connect the slave side of the bridge to any high speed interface and connect the master side of the bridge to the APB slaves. This bus has an address and data phase similar to AHB, but a much reduced, low complexity signal list for example no bursts.