Understanding of AMBA, AHB, APB and Axi

1. Background knowledge

AHB(Advanced High-performance Bus), High speed bus , Used to connect high-speed peripherals .APB (Advanced Peripheral Bus) Low speed bus , Used to connect low-speed peripherals .
https://zhuanlan.zhihu.com/p/157808097

AMBA、AHB、APB、AXI Bus introduction and comparison
https://zhuanlan.zhihu.com/p/161077476

2. Personal understanding Welcome to correct

AMBA Is the bus system ： Include AHB、APB、AXI
AHB Than APB Fast
AXI Than AHB Support simultaneous reading and writing , More powerful

therefore CPU And peripherals AXI Connect , Peripherals can pass X2P（AXI <->AHB） And AHB Bus connection , Other peripherals can also be connected AHB, Slow peripheral passing H2P（AHB <->APB） And AHB Bus connection