Advanced Microcontroller Bus Architecture

The Arm Advanced Microcontroller Bus Architecture (AMBA) is an open-standard, on-chip interconnect specification for the connection and management of functional blocks in system-on-a-chip (SoC) designs. It facilitates development of multi-processor designs with large numbers of controllers and components with a bus architecture.

Source: Wikipedia — Advanced Microcontroller Bus Architecture (CC BY-SA 4.0)