AMBA AHB

Overview

In System-on-Chip (SoC) designs, the Advanced High-Performance Bus (AMBA AHB) is a commonly used on-chip bus protocol. It is a component of the Advanced Microcontroller Bus Architecture (ARM AMBA) specification, which offers a collection of open standards for on-chip communication between different SoC components.

AMBA 5 Verification of AHB IP offers a practical and efficient means of confirming the parts of an IP or SoC that interface with the AMBA 5 AHB bus.
The AMBA 5 AHB VIP is complete with the ARM standard AMBA 5 AHB specification. With its lightweight design and simple plug-and-play interface, this VIP minimises any impact on the design cycle time.

diagram

Features

  • Master-Slave Architecture: AHB employs a master-slave architecture in which slaves—such as memory and peripherals—respond to requests for data transfers made by masters, which are usually CPUs or DMA controllers.
  • Support for Single-Cycle Bus Access: For the majority of transfers, AHB allows single-cycle bus access, which makes it effective for high-performance systems.
  • Burst Transfers: With its support for burst transfers, there is less overhead when transferring numerous pieces of data across consecutive addresses.
  • Split Transactions: Split transactions, which allow the address and data portions of a transfer to be divided, are used by AHB. This makes handling transfers more flexible and effective.
  • Multiple Masters and Arbitration: Multiple masters on the bus are supported by AHB. To regulate access and set priorities among competing masters, it employs an arbitration process.
  • Pipeline Structure: To achieve high throughput, AHB uses a pipelined topology for continuous data flow.
  • Error Handling: It includes mechanisms for error detection and handling, ensuring data integrity and system reliability.
  • Support for Different Transfer Types: AHB can handle a variety of data handling needs by supporting many transfer types, such as single, burst, and block transfers.
  • Bus Width and Clocking: Different bus widths and clocking systems can be supported by AHB, giving system designers and performance optimisers more freedom in their work.
  • Compatibility and Interoperability: Designed to guarantee compatibility and interoperability among various system components and peripherals, AHB is extensively utilized in ARM-based systems.

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