AMBA..........what is this.........?

[Guru59]

AMBA name stands for Advanced Microprocessor Bus Architecture

Where and What is this................

can anyone explain this..................


Thanks

 

[dtn_me]

AMBA is intended to address the requirements of high performance designs. AMBA bus protocol is designed to be used with a central multiplexer interconnection scheme. AMBA AHB(Advanced High Performance Bus) is a new level of bus which sits above the APB(Advanced Peripheral Bus) and implements the features required for high performance & high clock frequency systems. All bus masters drive out the address & control signals indicating the transfer they wish to perform and the arbiter decides which master has it's address & control signals routed to all the slaves.

 

[eltonjohn]

AMBA is a standart for SoIC bus ,there are several others like whishbone that is free
when you write a Core or Ip for a wide use .You want to use it as soon as possible ,by adopting a comun Bus is only a matter of hooking the core up to the system .

 

[vlsi_whiz]

AMBA is an SoC Interconnect Bus standard just as PCI and PCI Express is for peripheral devices. AMBA consists of the following components:

1. AHB - Advanced HighPerformance Bus
2. APB - Advanced Peripheral Bus
3. ASB - Advanced System Bus

Each of these buses can be used independently when required and are designed for SoC (System-on-a-Chip) designs as communication/link between blocks or components in an SoC.

AMBA is a standard put forth by ARM Inc, targetting their ARM based processors. Thus AMBA is an ARM based SoC Interconnect Bus. AMBA is a de-multiplexed bus, meaning it has seperate address and data lines unlike the Intel PCI bus which has multiplexed Address/Data lines.

There are other bus architectures also such as:

1. IBM CoreConnect
2. OpenCores Wishbone

All these have been designed for high-speed & high-perfoemance SoC Designs.

 

[cetc_llh]

www.arm.com

 

[archillios]

amba is not good, lots of bugs in AHB modules, even from arm.

also, amba is not high performance, especially in amba-based SOC environment.