There are a few key differences between the AHB advanced high-performance bus and the AXI advanced eXtensible interface. The first is that AHB is based on a simpler, more streamlined architecture, while AXI is designed to be more versatile. AHB is also typically faster than AXI, making it better suited for real-time applications. Finally, AHB is available in both master and slave configurations, while AXI can only be used as a slave protocol.
What is AHB?
- AHB is the industry-standard bus interface for high-performance systems. AHB was introduced in 1996 as a successor to AMBA, the industry-standard bus for low-cost systems. AHB provides a high-speed, low-cost bus interface that is compatible with a wide range of devices and peripherals.
- AHB is used in a variety of applications, including DSPs, microcontrollers, and system-on-chips. AHB provides a high-bandwidth, low-latency interface that is ideal for applications requiring high throughput and low response times. AHB is also scalable, allowing it to be used in systems with a wide range of performance requirements.
- AHB is an important part of the ARM architecture and is used in a variety of ARM processor families. AHB has been adopted by many other companies and is used in a variety of non-ARM systems. AHB is one of the most popular bus interfaces in use today.
What is AXI?
AXI bus interface is a high-speed, multi-layered bus used for communication between AXI masters and slaves. It supports data transfers at speeds of up to 5 Gbps. AXI bus interface allows for high bandwidth and low latency communication between AXI masters and slaves. AXI masters can be connected to AXI slaves using either an AXI4-Lite or an AXI4 interface.
AXI4-Lite is a simple, lightweight AXI interface that supports only basic AXI transactions. AXI4 is a full-featured AXI interface that supports all AXI transactions. In addition, AXI4-Lite supports only a single data width, while AXI4 supports multiple data widths. As a result, AXI4 is more flexible and efficient than AXI4-Lite.
Difference between AHB and AXI
AHB and AXI are both high-performance bus interfaces that are used in a variety of electronic devices. AHB is an older standard that was developed in the 1990s, while AXI is a newer standard that was developed in the 2000s. Both AHB and AXI are used to transfer data between different components within a device, but they differ in several key ways.
AHB is a simpler bus interface than AXI, with a smaller number of signals and a more limited feature set. AXI, on the other hand, is a more complex bus interface with a larger number of signals and a more extensive feature set. As a result, AXI is typically used in devices that require higher data transfer rates or more features than AHB can provide.
Conclusion
The AXI Advanced eXtensible Interface is a newer, more versatile standard that has been gaining traction in the industry. AHB has been around for longer and is more widely used, but AXI offers some advantages that could make it a better choice for your specific application.
