Arm recently announced the availability of the next iteration of the Arm® AMBA® 5 AXI and APB – AXI Issue J (AXI-J) and APB issue E (APB-E). These new specifications introduce several exciting features related to the latest Arm architecture and optimized transaction flows.
In this blog we will review the newest features released as part of the Arm® AMBA® ACE5-Lite protocol, said to improve throughput and meet the low power demands of ever evolving complex multicore SoCs including cache coherency.
The Arm® AMBA® 5 AXI protocol specification supports high-performance, high-frequency system designs for communication between manager and subordinate components. AMBA AXI5 protocols extend prior specification generations and add several important performance and scalability features which closely align these protocols to Arm AMBA CHI. Let’s look at some of the features of the AXI5 protocol in detail.
Arm recently announced the availability of the next iteration of the Arm® AMBA® 5 CHI protocol – CHI Issue F (CHI-F). AMBA 5 CHI-F is built on top of the existing AMBA CHI Issue E (CHI-E) specification (read our blog on AMBA CHI-E here), and introduces several exciting features related to the latest Arm architecture and optimized transaction flows.
Coherent Hub Interface, popularly known as CHI, is an Interface specification that is part of 5th generation of AMBA® protocols (AMBA® 5) from Arm, released in 2013. AMBA® 5 CHI defines the interfaces for connection of fully coherent processors and dynamic memory controllers, to high performance non-blocking interconnects.
Network-on-Chip (NoC) is a critical building block for many advanced and complex system-on-chips (SoCs). Having a complete verification solution to verify the functionality along with the performance (latency/bandwidth) is a must to ensure there are no functional bugs and no performance bottlenecks.