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AHB to APB bridge is a bus-to-bus interface that connects the high-performance bus (AHB) and the peripheral bus (APB) in ARM systems. This project report presents the synthesizable design, testbench and simulation results of the bridge in verilog HDL.
Learn how to design and simulate a synthesizable AHB to APB bridge interface using Verilog. The bridge is an AHB slave and the only APB master that converts AHB transfers into equivalent APB transfers.
Learn how to use the AHB to APB sync-down bridge, cmsdk_ahb_to_apb.v, to connect APB2, APB3, and APB4 peripherals to an AHB bus. See the features, parameters, and characteristics of this module.
Learn how the AHB-APB bridge connects the high-speed AHB domain and the low-power APB domain in Microchip devices. See the features, protocols, enhancements and examples of the bridge operation.
- Contents
- Introduction
- Specifications
- Configurations
- Interfaces
- Resources
- GeneratedCaptionsTabForHeroSec
The Roa Logic AHB-Lite APB4 Bridge is a fully parameterized soft IP interconnect bridge between the AMBA 3 AHB-Lite v1.0 and AMBA APB v2.0bus protocols. The AHB-Lite APB4 Bridge natively supports a single peripheral, however multiple APB4 peripherals may be connected to a single bridge by including supporting multiplexer logic – See the AMBA APB v2...
Functional Description
The Roa Logic AHB-Lite APB4 Bridge is a highly configurable, fully parameterized soft IP interconnect bridge between the AMBA 3 AHB-Lite v1.0 and AMBA APB v2.0bus protocols. These protocols are commonly referred to as AHB-Lite and APB4 respectively – these terms will be used throughout this datasheet. All signals defined in the AHB-Lite and APB4 specifications are fully supported. The IP contains 2 interfaces; an AHB-Lite Slave Interface and an APB4 Master Interface. Transactions received on...
AHB-Lite Interface
An AHB-Lite Bus Master connects to the AHB interface of the AHB-Lite APB4 Bridge. The AHB interface is implemented as a regular AHB-Lite Slave Interface, supporting all signals in the AMBA 3 AHB-Lite v1.0protocol specification
APB4 Interface
An APB4 Bus Slave connects to the APB interface of the Bridge IP. The APB port is implemented as a regular APB4 Master Interface supporting all signals of the AMBA APB v2.0protocol specification. This allows a single APB4 Peripheral to be connected directly to the Interface without further logic requirements. Multiple peripherals can share the APB4 Interface through appropriate decoding and multiplexing of the interface signals. Roa Logic provides an additional APB4 Multiplexer IP to implemen...
Introduction
The Roa Logic AHB-Lite APB4 Bridge is a fully configurable bridge IP to enable AHB-Lite based hosts to communicate with APB4 based peripherals. The core parameters and configuration options are described in this section.
AHB-Lite Interface
The AHB-Lite interface is a regular AHB-Lite slave port. All signals are supported. See the AMBA 3 AHB-Lite Specificationfor a complete description of the signals.
APB4 (Peripheral) Interface
The APB4Interface is a regular APB4 Master Interface. All signals defined in the protocol are supported as described below. See the AMBA APB Protocol v2.0 Specificationsfor a complete description of the signals.
Below are some example implementations for various platforms. All implementations are push button, no effort has been undertaken to reduce area or improve performance. (This table will be updated in future)
Learn how to connect AHB-Lite and APB4 bus protocols using the Roa Logic AHB-Lite APB4 Bridge IP. The bridge supports configurable parameters, cross-domain synchronization, and burst transactions.
Jun 5, 2024 · This paper presents a Verilog design and FPGA implementation of a bridge that connects the AHB and APB bus protocols in SoC architectures. The bridge enables data and control signal transfer between high-performance and low-power peripherals, improving the interconnectivity and functionality of the system.
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