转贴个东东，不过是E文的

This is a summary of System-on-Chip (SoC) interconnection buses that we\'ve found. They are used to interconnect IP cores together in SoC applications. No attempt has been made to include external system buses such as PCI, VMEbus, USB and so forth.
The purpose of this examination is to understand: (a) what interconnection buses are available, (b) if they are open or proprietary, (c) if they are available under license agreement, (d) to attempt to understand what (if any) copyright, trademark and/or patent protection exists for these architectures and (e) to provide hotlinks for more information. They are presented in alphabetical order by bus name.
In the descriptions below the term \'open\' is used if the following conditions are met: (a) no license agreement is needed to use the SoC interconnection and (b) there are no royalties or other fees that need to be paid to the steward or owner of the SoC interconnection.
Submissions to this list are encouraged. If you know of additional SoC interconnection buses, please send any information to: wadep@silicore.net.
AMBA
Bus Name: Advanced Microcontroller Bus Architecture (AMBA)
Stewardship: ARM
Status: proprietary. ARM claims that this bus is \'open\', but they require a restrictive license agreement.
Possible patent protection. See: US5525971.pdf (48 Kb)
Hotlink: www.arm.com

Avalon?
Bus Name: Avalon?
Stewardship: Altera Corporation
Status: proprietary. License restricts useage to Altera devices only (checked MAR 2002).
Hotlink: www.altera.com/products/devices/excalibur/features/exc-nios_avalon_bus.html

CoreConnect?
Bus Name: CoreConnect?
Stewardship: IBM
Status: proprietary. IBM claims that this bus is \'open\', but they require a restrictive license agreement.
Hotlink: www.chips.ibm.com/products/powerpc/cores/crcon_ug.html

CoreFrame?
Bus Name: CoreFrame?
Stewardship: Palmchip
Status: proprietary, available under license agreement.
Hotlink: www.palmchip.com

FISPbus?
Bus Name: FISPbus?
Stewardship: Mentor Graphics - Inventra Business Unit
Status: proprietary, available under license agreement.
Hotlink: www.mentorg.com

IPbus?
Bus Name: IDT Peripheral Bus (IPbus?)
Stewardship: Integrated Device Technology
Status: proprietary, license not available.
White paper from IDT: idtipbus.pdf (Adobe Acrobat? 4.0 file, 55 Kb)

IP Interface
Bus Name: IP Interface
Stewardship: Motorola, Inc.
Status: proprietary, available under license agreement
Hotlink: e-www.motorola.com/technology/srs

MARBLE
Bus Name: Manchester AsynchRonous Bus for Low Energy (MARBLE)
Stewardship: University of Manchester
Status: unknown if proprietary or open
Hotlink: www.cs.man.ac.uk/amulet/index.html
Note: at hotlink, look under \'publications\', and then find the group paper by:
W.J. Bainbridge and S.B. Furber; Asynchronous Macrocell Interconnect using MARBLE
Proceedings Async\'98, IEEE Computer Society Press; April 1998

OCP-IP
Bus Name: Open Core Protocol - International Partnership (OCP-IP)
Stewardship: OCP-IP Internaltional Partnership
Status: proprietary. OCP-IP claims that it is \'open\', but they require a restrictive license agreement.
Hotlink: www.ocpip.org

PI-Bus
Bus Name: Peripheral Interconnect Bus (PI-Bus)
Stewardship: Open Microprocessor Systems Initiative (OMI)
Status: proprietary, available under license agreement.
Hotlink: www.sussex.ac.uk/engg/research_groups/vlsi/projects/pibus/

SiliconBackplane?
Bus Name: SiliconBackplane Network and Open Core Protocol (OCP)
Stewardship: Sonics, Inc.
Status: proprietary, available under license agreement.
Possible patent protection. See: US5948089.pdf (52 Kb) and US6182183.pdf (45 Kb)
Hotlink: www.sonicsinc.com

VSIA On-chip Bus
Bus Name: VSIA On-Chip Bus
Stewardship: Virtual Socket Interface Alliance
Status: proprietary, available under license agreement.
Hotlink: www.vsia.com

WISHBONE Interconnect
Bus Name: WISHBONE Interconnect
Stewardship: Silicore Corporation
Status: open standard, no license required
Hotlink: www.silicore.net/wishbone.htm
 
Avalon? is a trademark of Altera Corporation
CoreConnect? is a trademark of International Business Machines (IBM)
CoreFrame? is a registered trademark of Palmchip Corporation
FISPbus? is a trademark of Mentor Graphics.
IPbus? is a trademark of Integrated Device Technology.
SiliconBackplane? is a trademark of Sonics, Inc.
Silicore is a trademark and registered service mark of Silicore Corporation.
This page last updated: 25 MAR 2002
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老兄现在在研究片上互联总线么

这篇文章好像是opencores上提供的吧

这是我老早以前在Opencore上看到DL的，现在并没有专门研究。

我也看过

大家准备用什么方法、从什么角度去研究这些片上互联结构呢？如果说单纯只使用某一种结构，我想花上十天半月的时间便能在rtl级解决问题；如果寻求一种最优的解决方案，做一篇博士论文也是可以的