AMBA（Advanced Microcontroller Bus Architecture）线是由ARM公司提出的一种开放性的片上总线标准。AMBA规范定义了芯片上和芯片外的接口和协议，用于多个市场领域的应用。AMBA 5是最新一代的规范，包括两个关键的AMBA协议：CHI和AXI。截至目前，AMBA主要规格：CHI、ACE、AXI、AHB、APB。
AMBA协议标准详见官网：ARM-AMBA specifications
AMBA５快速下载包：AMBA5接口协议文档汇总：CHI、ACE、AXI、AHB、APB
- AMBA 5
AMBA CHI Architecture Specification
AMBA CHI C2C Specification
AMBA AXI Protocol Specification
AMBA ACE Protocol Specification (superseded by CHI)
AMBA AHB Protocol Specification
AMBA AXI-Stream Protocol Specification
AMBA APB Protocol Specification
AMBA ATB Protocol Specification
AMBA CXS Protocol Specification
AMBA Adaptive Traffic Profiles Specification
AMBA Generic Flash Bus Protocol Specification
AMBA DTI Protocol Specification
AMBA LTI Protocol Specification
AMBA Low Power Interface Specification - AMBA 4
AMBA AXI and ACE Protocol Specification
AMBA 4 AXI4-Stream Protocol Specification
AMBA 4 ATB Protocol Specification
AMBA APB Protocol Specification
AMBA Low Power Interface (Arm Q-Channel and P-Channel Interfaces) - AMBA 3
AMBA AXI Protocol Specification
AMBA 3 AHB-Lite Protocol Specification
AMBA APB Protocol Specification
AMBA 3 ATB Protocol Specification
Multi-layer AHB Overview Specification - AMBA 2
AMBA Specification