RapidIO Trade Association
Rev. 2.2, 06/2011
© Copyright RapidIO Trade Association
RapidIO
TM
Interconnect Specification
Part 6: LP-Serial Physical
Layer Specification
RapidIO Trade Association
Revision History
Revision Description Date
1.1 First release 12/17/2001
1.2 Technical changes: incorporate Rev. 1.1 errata rev. 1.1.1, errata 3 06/26/2002
1.3 Technical changes: incorporate Rev 1.2 errata 1 as applicable,
the following errata showings: 03-03-00004.002, 03-07-00002.001, 03-12-00000.002,
03-12-00002.004, 04-02-00000.001, 04-05-00000.003, 04-05-00006.002 (partial),
04-05-00007.001
and the following new features showings: 02-03-0003.004, 02-06-00001.004,
04-08-00013.002, 04-09-00022.002
Converted to ISO-friendly templates
02/23/2005
1.3 Removed confidentiality markings for public release 06/07/2005
2.0 Significant editorial changes
Technical changes: errata showings 04-11-00031.001, 06-04-00000.003,
06-07-00001.001, 07-03-00000.002, 07-03-00001.001
new features showings 05-04-00001.005, 05-04-00003.004, new speed bin and width
definitions with supporting protocol
06/14/2007
2.0.1 Very minor editorial changes 08/29/2007
2.0.1 Removed confidentiality markings for public release 03/06/2008
2.1 Significant editorial changes
Technical changes: errata showings 07-09-00000.003, 07-06-00000.010,
08-05-00001.003, 08-03-00000.001, 08-02-00000.008, 08-06-00001.004,
07-11-00001.010, 08-10-00000.003, 08-11-00001.000
MM/DD/200Y
2.1 Removed confidentiality markings for public release 08/13/2009
2.2 Significant editorial changes
Technical changes: errata showings 09-08-00000.005, 09-09-00000.004,
10-02-00000.001, 10-03-00000.004, 10-01-00003.006, 10-08-00000.003,
10-08-00001.005, 10-10-00000.002, 10-10-00001.004, 10-11-00002.001,
11-02-00000.002, Consolidated Comments on 11-01-00000.000
05/05/2011
2.2 Removed confidentiality markings for public release 06/06/2011
RapidIO Trade Association
NO WARRANTY.THE RAPIDIO TRADE ASSOCIATION PUBLISHES THE SPECIFICATION “AS IS”. THE RAPIDIO TRADE
ASSOCIATION MAKES NO WARRANTY, REPRESENTATION OR COVENANT, EXPRESS OR IMPLIED, OF ANY KIND
CONCERNING THE SPECIFICATION, INCLUDING, WITHOUT LIMITATION, NO WARRANTY OF NON INFRINGEMENT, NO
WARRANTY OF MERCHANTABILITY AND NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. USER AGREES TO
ASSUME ALL OF THE RISKS ASSOCIATED WITH ANY USE WHATSOEVER OF THE SPECIFICATION. WITHOUT LIMITING THE
GENERALITY OF THE FOREGOING, USER IS RESPONSIBLE FOR SECURING ANY INTELLECTUAL PROPERTY LICENSES OR
RIGHTS WHICH MAY BE NECESSARY TO IMPLEMENT OR BUILD PRODUCTS COMPLYING WITH OR MAKING ANY OTHER
SUCH USE OF THE SPECIFICATION.
DISCLAIMER OF LIABILITY. THE RAPIDIO TRADE ASSOCIATION SHALL NOT BE LIABLE OR RESPONSIBLE FOR ACTUAL,
INDIRECT, SPECIAL, INCIDENTAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, WITHOUT LIMITATION, LOST
PROFITS) RESULTING FROM USE OR INABILITY TO USE THE SPECIFICATION, ARISING FROM ANY CAUSE OF ACTION
WHATSOEVER, INCLUDING, WHETHER IN CONTRACT, WARRANTY, STRICT LIABILITY, OR NEGLIGENCE, EVEN IF THE
RAPIDIO TRADE ASSOCIATION HAS BEEN NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.
Questions regarding the RapidIO Trade Association, specifications, or membership should be forwarded to:
RapidIO Trade Association
12343 Hymeadow, Suite 2-R
(non-US mail deliveries to Suite 3-E)
Austin, TX 78750
512-401-2900 Tel.
512-401-2902 FAX.
RapidIO and the RapidIO logo are trademarks and service marks of the RapidIO Trade Association. All other trademarks are the property of their
respective owners.
RapidIO Trade Association
Table of Contents
RapidIO Trade Association 5
RapidIO Part 6: LP-Serial Physical Layer Specification Rev. 2.2
Chapter 1 Overview
1.1 Introduction........................................................................................................... 25
1.2 Contents ................................................................................................................ 26
1.3 Terminology.......................................................................................................... 27
1.4 Conventions .......................................................................................................... 27
Chapter 2 Packets
2.1 Introduction........................................................................................................... 29
2.2 Packet Field Definitions........................................................................................ 29
2.3 Packet Format ....................................................................................................... 31
2.4 Packet Protection .................................................................................................. 31
2.4.1 Packet CRC Operation...................................................................................... 32
2.4.2 CRC-16 Code.................................................................................................... 34
2.5 Maximum Packet Size .......................................................................................... 36
Chapter 3 Control Symbols
3.1 Introduction........................................................................................................... 37
3.2 Control Symbol Field Definitions......................................................................... 39
3.3 Control Symbol Format ........................................................................................ 39
3.4 Stype0 Control Symbols....................................................................................... 40
3.4.1 Packet-Accepted Control Symbol..................................................................... 42
3.4.2 Packet-Retry Control Symbol........................................................................... 42
3.4.3 Packet-Not-Accepted Control Symbol ............................................................. 43
3.4.4 Status Control Symbol...................................................................................... 44
3.4.5 VC-Status Control Symbol............................................................................... 44
3.4.6 Link-Response Control Symbol ....................................................................... 45
3.5 Stype1 Control Symbols....................................................................................... 46
3.5.1 Start-of-Packet Control Symbol........................................................................ 48
3.5.2 Stomp Control Symbol ..................................................................................... 48
3.5.3 End-of-Packet Control Symbol......................................................................... 48
3.5.4 Restart-From-Retry Control Symbol ................................................................ 49
3.5.5 Link-Request Control Symbol.......................................................................... 49
3.5.5.1 Reset-Device Command............................................................................... 50
3.5.5.2 Input-Status Command................................................................................. 50
3.5.6 Multicast-Event Control Symbol...................................................................... 50
3.6 Control Symbol Protection ................................................................................... 51
3.6.1 CRC-5 Code...................................................................................................... 51
3.6.2 CRC-5 Parallel Code Generation...................................................................... 51
3.6.3 CRC-13 Code.................................................................................................... 53
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