ARM公司提出的总线协议AHB和APB的中文资料，可作为参考资料-ARM s proposed AHB and APB bus protocol of the Chinese data, can be used as reference

AHBtoAPB设计基于AMBA总线协议的APB Bridge设计-AHB to APB designThe AHB to APB bridge interface is an AHB slave. When accessed (in normal operation or system test) it initiates an access to the APB.