ISO/IEC 14776-151:2010

Information technology — Small Computer System Interface (SCSI) — Part 151: Serial Attached SCSI - 1.1 (SAS-1.1)

ISO/IEC 14776-151:2010(E) defines the rules for exchanging information between SCSI devices using a serial interconnect. It defines the rules for exchanging information between ATA hosts and ATA devices using the same serial interconnect. It is a functional description. Conforming implementations may employ any design technique that does not violate interoperability.

Technologies de l'information — Interface de petit système d'ordinateur (SCSI) — Partie 151: SCSI attachée en série - 1.1 (SAS-1.1)

General Information

• Status: Published
• Publication Date: 30-Jun-2010
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Drafting Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 21-Dec-2015

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 14776-151
First edition
2010-07-01

Information technology — Small
Computer System Interface (SCSI) —
Part 151:
Serial Attached SCSI-1.1 (SAS-1.1)
Technologies de l'information — Interface de petit système d'ordinateur
(SCSI) —
Partie 151: SCSI attachée en série -1.1 (SAS-1.1)




Reference number
ISO/IEC 14776-151:2010(E)
©
ISO/IEC 2010

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ISO/IEC 14776-151:2010(E)

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ISO/IEC 14776-151
Edition 1.0 2010-07
INTERNATIONAL
STANDARD


Information technology – Small computer system interface (SCSI) –
Part 151: Serial attached SCSI-1.1 (SAS-1.1)



ISO/IEC 14776-151:2010(E)

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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ISO/IEC 14776-151
Edition 1.0 2010-07
INTERNATIONAL
STANDARD


Information technology – Small computer system interface (SCSI) –
Part 151: Serial attached SCSI-1.1 (SAS-1.1)


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XL
ICS 35.200 ISBN 978-2-88912-092-5

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Contents
Page
Foreword .28
Introduction .29
1 Scope.31
2 Normative references.33
3 Terms, definitions, symbols, abbreviations, keywords and conventions.34
3.1 Terms and definitions .34
3.2 Symbols and abbreviations .54
3.3 Keywords.57
3.4 Editorial conventions .58
3.5 Class diagram and object diagram conventions.59
3.6 State machine conventions .64
3.6.1 State machine conventions overview.64
3.6.2 Transitions .64
3.6.3 Messages, requests, indications, confirmations, responses and event notifications.65
3.6.4 State machine counters, timers and variables.65
3.6.5 State machine arguments.65
3.7 Bit and byte ordering .65
3.8 Notation for procedures and functions .66
4 General .67
4.1 Architecture .67
4.1.1 Architecture overview.67
4.1.2 Physical links and phys.68
4.1.3 Ports (narrow ports and wide ports).71
4.1.4 SAS devices .74
4.1.5 Expander devices (edge expander devices and fanout expander devices).75
4.1.6 Service delivery subsystem .77
4.1.7 Domains.78
4.1.8 Expander device topologies.80
4.1.8.1 Expander device topology overview.80
4.1.8.2 Edge expander device set.80
4.1.8.3 Expander device topologies .81
4.1.9 Pathways .84
4.1.10 Connections.85
4.2 Names and identifiers.87
4.2.1 Names and identifiers overview.87
4.2.2 SAS address.87
4.2.3 Hashed SAS address .88
4.2.4 Device names .88
4.2.5 Port names .88
4.2.6 Port identifiers.88
4.2.7 Phy identifiers .89
4.3 State machines.90
4.3.1 State machine overview.90
4.3.2 Transmit data path.92
4.3.3 Receive data path.96
4.3.4 State machines and SAS device, SAS port and SAS phy classes .99
4.4 Resets .100
4.4.1 Reset overview .100
4.4.2 Hard reset .102
4.4.2.1 Hard reset overview .102
4.4.2.2 Additional hard reset processing by SAS ports.102
4.4.2.3 Additional hard reset processing by expander ports .102

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14776-151 © ISO/IEC:2010(E) - 3 -
4.5 I_T nexus loss .102
4.6 Expander device model.102
4.6.1 Expander device model overview .102
4.6.2 Expander ports .103
4.6.3 Expander connection manager (ECM).104
4.6.4 Expander connection router (ECR).104
4.6.5 Broadcast primitive processor (BPP).104
4.6.6 Expander device interfaces .104
4.6.6.1 Expander device interface overview.104
4.6.6.2 Expander device interfaces detail .106
4.6.6.3 ECM interface.106
4.6.6.4 ECR interface.108
4.6.6.5 BPP interface .110
4.6.7 Expander device routing .110
4.6.7.1 Routing attributes and routing methods .110
4.6.7.2 Connection request routing .111
4.6.7.3 Expander route table.111
4.7 Discover process.112
4.7.1 Discover process overview .112
4.7.2 Allowed topologies.114
4.7.3 Discover process optimization .115
4.7.4 Expander route index order .116
4.8 Phy test functions .121
5 Physical layer.122
5.1 Physical layer overview .122
5.2 Passive interconnect .122
5.2.1 SATA connectors and cable assemblies .122
5.2.2 SAS connectors and cables.122
5.2.3 Connectors .126
5.2.3.1 Connectors overview.126
5.2.3.2 SAS internal connectors.127
5.2.3.2.1 SAS Drive connectors.127
5.2.3.2.1.1 SAS Drive plug connector. 127
5.2.3.2.1.2 SAS Drive cable receptacle connector. 127
5.2.3.2.1.3 SAS Drive backplane receptacle connector. 128
5.2.3.2.1.4 SAS Drive connector pin assignments. 128
5.2.3.2.2 SAS 4i connectors .130
5.2.3.2.2.1 SAS 4i cable receptacle connector . 130
5.2.3.2.2.2 SAS 4i plug connector. 130
5.2.3.2.2.3 SAS 4i connector pin assignments . 131
5.2.3.2.3 Mini SAS 4i connectors.132
5.2.3.2.3.1 Mini SAS 4i cable plug connector . 132
5.2.3.2.3.2 Mini SAS 4i receptacle connector . 133
5.2.3.2.3.3 Mini SAS 4i connector pin assignments. 134
5.2.3.3 SAS external connectors.136
5.2.3.3.1 SAS 4x connectors .136
5.2.3.3.1.1 SAS 4x cable plug connector. 136
5.2.3.3.1.2 SAS 4x receptacle connector. 136
5.2.3.3.1.3 SAS 4x connector pin assignments . 138
5.2.3.3.2 Mini SAS 4x connectors.138
5.2.3.3.2.1 Mini SAS 4x cable plug connector . 138
5.2.3.3.2.2 Mini SAS 4x receptacle connector . 140
5.2.3.3.2.3 Mini SAS 4x connector pin assignments. 143
5.2.4 Cable assemblies .143
5.2.4.1 SAS internal cable assemblies.143
5.2.4.1.1 SAS Drive cable assemblies.143
5.2.4.1.2 SAS internal symmetric cable assemblies.144
5.2.4.1.2.1 SAS internal symmetric cable assemblies overview. 144
5.2.4.1.2.2 SAS internal symmetric cable assembly - SAS 4i. 145

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5.2.4.1.2.3 SAS internal symmetric cable assembly - Mini SAS 4i . 146
5.2.4.1.2.4 SAS internal symmetric cable assembly - SAS 4i to Mini SAS 4i . 147
5.2.4.1.3 SAS internal fanout cable assemblies .148
5.2.4.1.3.1 SAS internal fanout cable assemblies overview . 148
5.2.4.1.3.2 SAS internal controller-based fanout cable assemblies. 149
5.2.4.1.3.3 SAS internal backplane-based fanout cable assemblies . 151
5.2.4.2 SAS external cable assemblies.152
5.2.4.2.1 SAS external cable assemblies overview.152
5.2.4.2.2 SAS external cable assembly - SAS 4x.153
5.2.4.2.3 SAS external cable assembly - Mini SAS 4x .154
5.2.4.2.4 SAS external cable assembly - SAS 4x to Mini SAS 4x .156
5.2.5 Backplanes .156
5.2.6 Cable assembly and backplane specifications .157
5.3 Transmitter and receiver device electrical characteristics.161
5.3.1 Compliance points .161
5.3.2 Test loads .169
5.3.2.1 Test loads overview.169
5.3.2.2 Zero-length test load .170
5.3.2.3 TCTF test load.171
5.3.2.4 Low-loss TCTF test load .173
5.3.3 General electrical characteristics.174
5.3.4 Transmitter and receiver device transients.177
5.3.5 Eye masks .177
5.3.5.1 Eye masks overview.177
5.3.5.2 Transmitter device eye mask .178
5.3.5.3 Receiver device eye mask .178
5.3.5.4 Receiver device jitter tolerance eye mask.179
5.3.6 Transmitter device characteristics .180
5.3.6.1 Transmitter device characteristics overview.180
5.3.6.2 Transmitter device signal output characteristics as measured with the zero-length test load.181
5.3.6.3 Transmitter device signal output characteristics as measured with each test load.181
5.3.6.4 Transmitter device maximum jitter .183
5.3.6.5 Transmitter device signal output levels for OOB signals.183
5.3.7 Receiver device characteristics .183
5.3.7.1 Receiver device characteristics overview.183
5.3.7.2 Delivered signal (receiver device signal tolerance) characteristics.184
5.3.7.3 Maximum delivered jitter .186
5.3.7.4 Receiver device jitter tolerance .186
5.3.8 Spread spectrum clocking.187
5.3.9 Non-tracking clock architecture.187
5.4 READY LED signal electrical characteristics.187
6 Phy layer .189
6.1 Phy layer overview .189
6.2 8b10b coding.189
6.2.1 8b10b coding overview .189
6.2.2 8b10b coding introduction.189
6.2.3 8b10b coding notation conventions .189
6.3 Character encoding and decoding .190
6.3.1 Introduction .190
6.3.2 Transmission order .190
6.3.3 Data and control characters.190
6.3.4 Encoding characters in the transmitter .197
6.3.5 Decoding characters in the receiver .197
6.4 Dwords, primitives, data dwords and invalid dwords.197
6.5 Bit order.198
6.6 Out of band (OOB) signals .199
6.6.1 OOB signals overview.199
6.6.2 Transmitting OOB signals.200
6.6.3 Receiving OOB signals.202

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14776-151 © ISO/IEC:2010(E) - 5 -
6.6.4 Transmitting the SATA port selection signal.204
6.7 Phy reset sequences.204
6.7.1 Phy reset sequences overview .204
6.7.2 SATA phy reset sequence .205
6.7.2.1 SATA OOB sequence .205
6.7.2.2 SATA speed negotiation sequence.205
6.7.3 SAS to SATA phy reset sequence.206
6.7.4 SAS to SAS phy reset sequence .207
6.7.4.1 SAS OOB sequence .207
6.7.4.2 SAS speed negotiation sequence .208
6.7.4.2.1 SAS speed negotiation sequence overview .208
6.7.4.2.2 Speed negotiation window.209
6.7.4.2.3 SAS speed negotiation sequence.210
6.7.5 Phy reset sequence after devices are attached.212
6.8 SP (phy layer) state machine .213
6.8.1 SP state machine overview.213
6.8.2 SP transmitter and receiver .215
6.8.3 OOB sequence states.216
6.8.3.1 OOB sequence states overview.216
6.8.3.2 SP0:
...