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Article: The Common System Interface: Intel's Future Interconnect

By: David Kanter (dkanter.delete@this.realworldtech.com), August 28, 2007 2:16 am

Dear RWT Readers,

I have waited a rather long time to put this article online (since February when I first started researching). As many of you know, Intel is in the midst of redesigning their entire system architecture. The last time something of this magnitude happened was when the split transaction P6 bus debuted in 1995 - a bus that lasted for roughly a decade.

Next year, the Common System Interface will ship in two products (Nehalem and Tukwila), ushering in a new system architecture from Intel.

I have put up an extremely in-depth report that is the work of roughly 5 months of research, studying Intel's patent disclosures. In this article, I describe CSI is exquisite detail, including the physical layer, link layer, coherency protocol and I provide some speculation as to how CSI will be used in future products.

http://www.realworldtech.com/page.cfm?ArticleID=RWT082807020032&p=1

I hope you all enjoy the read. I'd also like to thank everyone who helped with this article. I relied on the technical expertise of quite a few friends, and without their help this article wouldn't be nearly as compete or understandable.

Regards,

David Kanter

Next Post in Thread >

Topic	Posted By	Date
New article - The Common System Interface: Intel's Future Interconnect	David Kanter	2007/08/28 02:16 AM
New article - The Common System Interface: Intel's Future Interconnect	Vincent Diepeveen	2007/08/28 06:02 AM
New article - The Common System Interface: Intel's Future Interconnect	Richard Cownie	2007/08/28 11:28 AM
New article - The Common System Interface: Intel's Future Interconnect	Vincent Diepeveen	2007/08/31 12:44 PM
New article - The Common System Interface: Intel's Future Interconnect	Richard Cownie	2007/08/31 09:53 PM
New article - The Common System Interface: Intel's Future Interconnect	Vincent Diepeveen	2007/09/01 03:21 AM
Adding layers can simplify design	Paul A. Clayton	2007/09/01 08:39 AM
New article - The Common System Interface: Intel's Future Interconnect	Michael S	2007/09/02 03:25 AM
New article - The Common System Interface: Intel's Future Interconnect	Jonathan Kang	2007/09/14 01:47 PM
New article - The Common System Interface: Intel's Future Interconnect	David Kanter	2007/09/14 09:47 PM
New article - The Common System Interface: Intel's Future Interconnect	Paul	2007/08/28 12:04 PM
New article - The Common System Interface: Intel's Future Interconnect	David Kanter	2007/08/28 01:43 PM
New article - The Common System Interface: Intel's Future Interconnect	Joe Chang	2007/08/28 07:17 PM
New article - The Common System Interface: Intel's Future Interconnect	Joe Chang	2007/08/29 05:27 PM
Thanks for the work	Wouter Tinus	2007/08/28 01:33 PM
Thanks for the work	mac	2007/08/29 01:44 PM
New article - The Common System Interface: Intel's Future Interconnect	Herbert Hum	2007/08/28 02:22 PM
Thanks	David Kanter	2007/08/28 05:13 PM
Many thanks, very, very interesting! (NT)	Cameron Jack	2007/08/29 02:51 AM
very nice article + memory ctrl integration	Marcin Niewiadomski	2007/08/29 12:46 PM
very nice article + memory ctrl integration	David Kanter	2007/09/14 09:50 PM
very nice article + memory ctrl integration	Marcin Niewiadomski	2007/09/16 09:48 PM
Coherency: Forwarding and Owned	Peter Gerdes	2007/08/29 03:11 PM
Coherency: Forwarding and Owned	David Kanter	2007/08/29 07:29 PM
Coherency: Forwarding and Owned	nick	2007/08/29 08:03 PM
Coherency: Forwarding and Owned	David Kanter	2007/08/30 12:08 AM
Coherency: Forwarding and Owned	Michael S	2007/08/30 02:17 AM
Coherency: Forwarding and Owned	David Kanter	2007/08/30 08:31 AM
Coherency: Forwarding and Owned	Peter Gerdes	2007/08/30 12:46 PM
Coherency: Forwarding and Owned	David Kanter	2007/08/30 02:46 PM
Coherency: Forwarding and Owned	Peter Gerdes	2007/08/30 08:03 PM
Coherency: Forwarding and Owned	David Kanter	2007/09/14 09:44 PM
Node Interleave	unknown	2007/09/15 04:14 AM
Node Interleave	David Kanter	2007/09/15 08:50 AM
Node Interleave	Howard Chu	2007/09/16 01:14 PM
Coherency: Forwarding and Owned	Peter Gerdes	2007/09/16 01:50 PM
Coherency: Forwarding and Owned	David Kanter	2007/09/16 05:34 PM
Coherency: Forwarding and Owned	EduardoS	2007/09/16 05:52 PM
Coherency: Forwarding and Owned	Jonathan Kang	2007/09/17 06:16 AM
Coherency: Forwarding and Owned	Matthias	2007/09/17 07:59 AM
Coherency: Forwarding and Owned - addition	Matthias	2007/09/17 08:01 AM
Coherency: Forwarding and Owned	anonymous	2007/09/17 10:15 AM
Coherency: Forwarding and Owned	Peter Gerdes	2007/09/17 01:44 PM
New article - The Common System Interface: Intel's Future Interconnect	Mr. Camel	2007/08/30 04:16 PM
New article - The Common System Interface: Intel's Future Interconnect	Michael S	2007/08/31 02:11 AM
New article - The Common System Interface: Intel's Future Interconnect	Mr. Camel	2007/08/31 04:13 AM
New article - The Common System Interface: Intel's Future Interconnect	Michael S	2007/08/31 04:24 AM
New article - The Common System Interface: Intel's Future Interconnect	David Kanter	2007/08/31 06:39 AM
New article - The Common System Interface: Intel's Future Interconnect	Michael S	2007/08/31 07:53 AM
New article - The Common System Interface: Intel's Future Interconnect	David Kanter	2007/08/31 06:41 AM
New article - The Common System Interface: Intel's Future Interconnect	Michael S	2007/08/31 07:36 AM
New article - The Common System Interface: Intel's Future Interconnect	Mr. Camel	2007/08/31 09:36 AM
Thanks and excellent work!	Jack A.	2007/08/30 08:41 PM
Lamport's TLA	Konrad Schwarz	2007/09/02 02:57 AM
Lamport's TLA	David Kanter	2007/09/02 08:55 PM
Lamport's TLA	Brannon	2007/09/03 08:12 AM
Lamport's TLA	Konrad Schwarz	2007/09/18 11:21 AM
Lamport's TLA	Brannon	2007/09/18 02:58 PM
New article - The Common System Interface: Intel's Future Interconnect	José Javier Zarate	2007/09/09 05:01 PM
New article - The Common System Interface: Intel's Future Interconnect	Jonathan Kang	2007/09/16 06:42 PM
Remote prefetch	David Kanter	2007/09/17 08:51 AM
New article - The Common System Interface: Intel's Future Interconnect	Jigal	2007/09/22 03:39 PM
New article - The Common System Interface: Intel's Future Interconnect	David Kanter	2007/09/22 05:35 PM
New article - The Common System Interface: Intel's Future Interconnect	8B/10B Latency	2007/09/22 07:16 PM
New article - The Common System Interface: Intel's Future Interconnect	anon	2007/09/22 09:05 PM
New article - The Common System Interface: Intel's Future Interconnect	David W. Hess	2007/09/22 09:50 PM
Clocking in CSI	David Kanter	2007/09/23 09:46 AM
Hypertransport 3 AC Coupling	David W. Hess	2007/09/23 10:32 AM
Hypertransport 3 AC Coupling	anon	2007/09/23 10:53 AM
Clocking lanes	David Kanter	2007/09/23 11:51 AM
New article - The Common System Interface: Intel's Future Interconnect	David Kanter	2007/09/22 09:34 PM
New article - The Common System Interface: Intel's Future Interconnect	David W. Hess	2007/09/22 10:10 PM
New article - The Common System Interface: Intel's Future Interconnect	Jonathan Kang	2007/09/25 08:15 AM
New article - The Common System Interface: Intel's Future Interconnect	Michael S	2007/09/23 02:06 AM
New article - The Common System Interface: Intel's Future Interconnect	David W. Hess	2007/09/23 04:41 AM
Serialization delay	David Kanter	2007/09/23 09:57 AM
Serialization delay	Michael S	2007/09/23 12:20 PM
Serialization delay	David Kanter	2007/09/23 01:43 PM
Serialization delay	Michael S	2007/09/24 01:40 AM
Serialization delay	Michael S	2007/09/24 05:28 AM
Serialization delay	Aaron Spink	2007/09/24 01:19 PM
Serialization delay	Michael S	2007/09/25 04:38 AM
Serialization delay	Jonathan Kang	2007/09/25 09:10 AM
Serialization delay	David W. Hess	2007/09/26 01:22 AM
Serialization delay	Aaron Spink	2007/09/25 01:13 PM
Thank you (NT)	Michael S	2007/09/25 01:53 PM
Serialization delay	Jonathan Kang	2007/09/25 08:26 AM
Serialization delay	Michael S	2007/09/25 02:57 PM
Serialization delay	Jonathan Kang	2007/09/26 06:24 AM
Serialization delay	David W. Hess	2007/09/26 07:39 AM
Serialization delay	Jonathan Kang	2007/09/26 10:56 AM
Serialization delay	David W. Hess	2007/09/27 03:21 AM
Serialization delay	Jonathan Kang	2007/09/27 05:36 AM
Serialization delay	David W. Hess	2007/09/27 06:31 PM
Serialization delay	rwessel	2007/09/26 02:26 PM
Serialization delay	Jonathan Kang	2007/09/27 08:16 AM
Serialization delay	rwessel	2007/09/27 01:20 PM
Serialization delay	Jonathan Kang	2007/09/28 05:38 AM
Serialization delay	rwessel	2007/09/28 02:00 PM
Serialization delay	Jonathan Kang	2007/10/01 08:07 AM
Cache coherent latency	David Kanter	2007/10/01 08:20 AM
Cache coherent latency	blaine	2007/10/01 11:36 AM
Critical word first on coherent interconnects	David Kanter	2007/10/01 12:10 PM
Does ccHT do critical word first?	blaine	2007/10/02 08:10 AM
Cache coherent latency	Jonathan Kang	2007/10/01 01:34 PM
Cache coherent latency	David Kanter	2007/10/01 02:13 PM
Serialization delay	Michael S	2007/09/28 05:32 AM
Serialization delay	anonymous	2007/09/28 11:25 AM
Serialization delay	Michael S	2007/09/29 10:06 AM
New article - The Common System Interface: Intel's Future Interconnect	Jonathan Kang	2007/09/25 08:05 AM
New article - The Common System Interface: Intel's Future Interconnect	jigal	2007/09/23 01:37 PM
CSI, PCI and HT	David Kanter	2007/09/23 01:46 PM
New article - The Common System Interface: Intel's Future Interconnect	Jonathan Kang	2007/09/25 08:39 AM
New article - The Common System Interface: Intel's Future Interconnect	jigal	2007/09/25 03:16 PM
New article - The Common System Interface: Intel's Future Interconnect	Michael S	2007/09/26 04:14 AM
New article - The Common System Interface: Intel's Future Interconnect	Anonymous	2007/09/26 10:41 AM
New article - The Common System Interface: Intel's Future Interconnect	Jonathan Kang	2007/09/26 10:59 AM
New article - The Common System Interface: Intel's Future Interconnect	Jonathan Kang	2007/09/26 06:48 AM

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Body:	No Text David Kanter (dkanter.delete@this.realworldtech.com) on August 28, 2007 2:16 am wrote: > Dear RWT Readers, > > I have waited a rather long time to put this article online (since February when I first > started researching). As many of you know, Intel is in the midst of redesigning their entire > system architecture. The last time something of this magnitude happened was when the split > transaction P6 bus debuted in 1995 - a bus that lasted for roughly a decade. > > Next year, the Common System Interface will ship in two products (Nehalem > and Tukwila), ushering in a new system architecture from Intel. > > I have put up an extremely in-depth report that is the work of roughly 5 months of research, studying Intel's > patent disclosures. In this article, I describe CSI is exquisite detail, including the physical layer, link > layer, coherency protocol and I provide some speculation as to how CSI will be used in future products. > > <a href="http://www.realworldtech.com/page.cfm?ArticleID=RWT082807020032&p=1" target=_blank>http://www.realworldtech.com/page.cfm?ArticleID=RWT082807020032&p=1</a> > > I hope you all enjoy the read. I'd also like to thank everyone who helped with this article. I relied on the technical expertise of quite a few friends, and without their help this article wouldn't be nearly as compete or understandable. > > > Regards, > > > David Kanter
How do you spell tangerine? 🍊

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