Information technology - Small computer system interface (SCSI) - Part 154: Serial Attached SCSI - 3 (SAS-3)

ISO/IEC 14776-154:2017(E) This document specifies the functional requirements for the Serial Attached SCSI (SAS) physical interconnect, which is compatible with the Serial ATA physical interconnect. The SAS Protocol Layer - 3 (SPL-3) standard documents the SAS protocol layer corresponding to the Serial Attached SCSI - 3 (SAS-3), defining the rules for exchanging information between SCSI devices using a serial interconnect.

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Published
Publication Date
13-Dec-2017
Current Stage
PPUB - Publication issued
Start Date
14-Dec-2017
Completion Date
14-Dec-2017
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ISO/IEC 14776-154:2017 - Information technology - Small computer system interface (SCSI) - Part 154: Serial Attached SCSI - 3 (SAS-3)
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ISO/IEC 14776-154
Edition 1.0 2017-12
INTERNATIONAL
STANDARD
colour
inside
Information technology – Small computer system interface (SCSI) –
Part 154: Serial Attached SCSI - 3 (SAS-3)
ISO/IEC 14776-154:2017-12(en)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
ISO/IEC 14776-154
Edition 1.0 2017-12
INTERNATIONAL
STANDARD
colour
inside
Information technology – Small computer system interface (SCSI) –
Part 154: Serial Attached SCSI - 3 (SAS-3)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200 ISBN 978-2-8322-5168-3

Warning! Make sure that you obtained this publication from an authorized distributor.

---------------------- Page: 3 ----------------------
– 2 – ISO/IEC 14776-154:2017 © ISO/IEC 2017
CONTENTS

FOREWORD................................................................................................................................................... 14

INTRODUCTION............................................................................................................................................. 16

1 Scope........................................................................................................................................................... 18

2 Normative references................................................................................................................................... 18

3 Terms, definitions, symbols, abbreviations, keywords, and conventions..................................................... 20

3.1 Terms and definitions ............................................................................................................................. 20

3.2 Symbols and abbreviations .................................................................................................................... 33

3.2.1 Abbreviations .................................................................................................................................... 33

3.2.2 Symbols ............................................................................................................................................ 36

3.2.2.1 Units ............................................................................................................................................ 36

3.2.2.2 Mathematical operators............................................................................................................... 36

3.2.2.3 Other symbols ............................................................................................................................. 37

3.3 Keywords................................................................................................................................................ 38

3.4 Editorial conventions .............................................................................................................................. 39

3.5 Numeric and character conventions....................................................................................................... 40

3.5.1 Numeric conventions ........................................................................................................................ 40

3.5.2 Units of measure............................................................................................................................... 40

3.5.3 Byte encoded character strings conventions .................................................................................... 41

4 General ........................................................................................................................................................ 42

4.1 Physical links and phys .......................................................................................................................... 42

4.2 Phy test functions ................................................................................................................................... 42

5 Physical layer............................................................................................................................................... 43

5.1 Physical layer overview .......................................................................................................................... 43

5.2 Conventions for defining maximum limits for S-parameters...................................................................43

5.3 Compliance points.................................................................................................................................. 44

5.3.1 Compliance points overview ............................................................................................................. 44

5.3.2 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s compliance points......................................................................... 45

5.3.3 12 Gbit/s compliance points.............................................................................................................. 53

5.4 Interconnects.......................................................................................................................................... 55

5.4.1 SATA connectors and cable assemblies .......................................................................................... 55

5.4.2 SAS connectors and cables.............................................................................................................. 56

5.4.3 Connectors........................................................................................................................................ 60

5.4.3.1 Connectors overview................................................................................................................... 60

5.4.3.2 Connector categories .................................................................................................................. 62

5.4.3.3 Recommended electrical performance limits for mated connector pairs supporting rates of

12 Gbit/s............................................................................................................................................. 63

5.4.3.4 SAS internal connectors.............................................................................................................. 64

5.4.3.4.1 SAS Drive connectors............................................................................................................ 64

5.4.3.4.1.1 SAS Drive plug connector............................................................................................... 64

5.4.3.4.1.2 SAS Drive cable receptacle connector............................................................................ 65

5.4.3.4.1.3 SAS Drive backplane receptacle connector.................................................................... 66

5.4.3.4.1.4 SAS Drive connector pin assignments............................................................................ 67

5.4.3.4.1.5 SAS MultiLink Drive plug connector................................................................................ 69

5.4.3.4.1.6 SAS MultiLink Drive cable receptacle connector ............................................................ 69

5.4.3.4.1.7 SAS MultiLink Drive backplane receptacle connector..................................................... 70

5.4.3.4.1.8 SAS MultiLink Drive connector pin assignments............................................................. 70

5.4.3.4.1.9 Micro SAS plug connector............................................................................................... 74

5.4.3.4.1.10 Micro SAS receptacle connector................................................................................... 74

5.4.3.4.1.11 Micro SAS connector pin assignments ......................................................................... 75

5.4.3.4.2 SAS 4i connectors ................................................................................................................. 76

5.4.3.4.2.1 SAS 4i cable receptacle connector ................................................................................. 76

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ISO/IEC 14776-154:2017 © ISO/IEC 2017 – 3 –

5.4.3.4.2.2 SAS 4i plug connector..................................................................................................... 76

5.4.3.4.2.3 SAS 4i connector pin assignments ................................................................................. 77

5.4.3.4.3 Mini SAS 4i connectors.......................................................................................................... 79

5.4.3.4.3.1 Mini SAS 4i cable plug connector ................................................................................... 79

5.4.3.4.3.2 Mini SAS 4i receptacle connector ................................................................................... 79

5.4.3.4.3.3 Mini SAS 4i connector pin assignments.......................................................................... 80

5.4.3.4.4 Mini SAS HD internal connectors .......................................................................................... 82

5.4.3.4.4.1 Mini SAS HD 4i cable plug connector ............................................................................. 82

5.4.3.4.4.2 Mini SAS HD 8i cable plug connector ............................................................................. 83

5.4.3.4.4.3 Mini SAS HD 4i receptacle connector............................................................................. 84

5.4.3.4.4.4 Mini SAS HD 8i receptacle connector............................................................................. 85

5.4.3.4.4.5 Mini SAS HD 16i receptacle connector........................................................................... 86

5.4.3.4.4.6 Mini SAS HD 4i connector pin assignments.................................................................... 87

5.4.3.5 SAS external connectors............................................................................................................. 90

5.4.3.5.1 Mini SAS 4x connectors......................................................................................................... 90

5.4.3.5.1.1 Mini SAS 4x cable plug connector .................................................................................. 90

5.4.3.5.1.2 Mini SAS 4x receptacle connector .................................................................................. 97

5.4.3.5.1.3 Mini SAS 4x connector pin assignments....................................................................... 103

5.4.3.5.1.4 Mini SAS 4x active connector pin assignments ............................................................ 104

5.4.3.5.1.5 Mini SAS 4x active cable power requirements.............................................................. 105

5.4.3.5.2 Mini SAS HD external connectors ....................................................................................... 106

5.4.3.5.2.1 Mini SAS HD 4x cable plug connector .......................................................................... 106

5.4.3.5.2.2 Mini SAS HD 8x cable plug connector .......................................................................... 107

5.4.3.5.2.3 Mini SAS HD 4x receptacle connector.......................................................................... 108

5.4.3.5.2.4 Mini SAS HD 8x receptacle connector.......................................................................... 109

5.4.3.5.2.5 Mini SAS HD 16x receptacle connector........................................................................ 110

5.4.3.5.2.6 Mini SAS HD 4x connector pin assignments................................................................. 111

5.4.3.5.2.7 Mini SAS HD external connector management interface.............................................. 112

5.4.3.5.2.8 Mini SAS HD external connector memory map............................................................. 113

5.4.3.5.3 QSFP+ connectors .............................................................................................................. 113

5.4.3.5.3.1 QSFP+ cable plug......................................................................................................... 113

5.4.3.5.3.2 QSFP+ receptacle......................................................................................................... 114

5.4.3.5.3.3 QSFP+ connector pin assignments .............................................................................. 115

5.4.3.5.3.4 QSFP+ memory map .................................................................................................... 116

5.4.4 Cable assemblies............................................................................................................................ 117

5.4.4.1 SAS internal cable assemblies.................................................................................................. 117

5.4.4.1.1 SAS Drive cable assemblies................................................................................................ 117

5.4.4.1.2 SAS internal symmetric cable assemblies........................................................................... 119

5.4.4.1.2.1 SAS internal symmetric cable assemblies overview..................................................... 119

5.4.4.1.2.2 SAS internal symmetric cable assembly - SAS 4i......................................................... 120

5.4.4.1.2.3 SAS internal symmetric cable assembly - Mini SAS 4i ................................................. 121

5.4.4.1.2.4 SAS internal symmetric cable assembly - Mini SAS HD 4i........................................... 122

5.4.4.1.2.5 SAS internal symmetric cable assembly - Mini SAS HD 8i........................................... 123

5.4.4.1.2.6 SAS internal symmetric cable assembly - SAS 4i to Mini SAS 4i with vendor-specific

sidebands................................................................................................................................... 124

5.4.4.1.2.7 SAS internal symmetric cable assembly - SAS 4i controller to Mini SAS 4i

backplane with SGPIO............................................................................................................... 125

5.4.4.1.2.8 SAS internal symmetric cable assembly - Mini SAS 4i controller to SAS 4i

backplane with SGPIO............................................................................................................... 126

5.4.4.1.2.9 SAS internal symmetric cable assembly - Mini SAS 4i to Mini SAS HD 4i ................... 127

5.4.4.1.3 SAS internal fanout cable assemblies .................................................................................128

5.4.4.1.3.1 SAS internal fanout cable assemblies overview ........................................................... 128

5.4.4.1.3.2 SAS internal controller-based fanout cable assemblies................................................ 129

5.4.4.1.3.3 SAS internal backplane-based fanout cable assemblies .............................................. 132

5.4.4.2 SAS external cable assemblies................................................................................................. 135

5.4.4.2.1 SAS external cable assemblies overview............................................................................ 135

5.4.4.2.2 SAS external cable assembly - Mini SAS 4x ....................................................................... 136

5.4.4.2.3 SAS external cable assembly - Mini SAS HD 4x................................................................. 139

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– 4 – ISO/IEC 14776-154:2017 © ISO/IEC 2017

5.4.4.2.4 SAS external cable assembly - Mini SAS HD 8x................................................................. 141

5.4.4.2.5 SAS external cable assembly - Mini SAS HD 8x to Mini SAS HD 4x .................................. 143

5.4.4.2.6 SAS external cable assembly - Mini SAS HD 4x to Mini SAS 4x ........................................ 145

5.4.4.2.7 SAS external cable assembly - QSFP+............................................................................... 146

5.4.5 Backplanes ..................................................................................................................................... 146

5.5 TxRx connection characteristics........................................................................................................... 147

5.5.1 TxRx connection characteristics overview...................................................................................... 147

5.5.2 TxRx connection general characteristics ........................................................................................ 148

5.5.3 Passive TxRx connection S-parameter limits ................................................................................. 149

5.5.4 Passive TxRx connection characteristics for untrained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s .............. 151

5.5.5 Passive TxRx connection characteristics for trained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s .................. 152

5.5.6 Passive TxRx connection characteristics for trained 12 Gbit/s....................................................... 153

5.5.7 TxRx connection characteristics for active cable assemblies......................................................... 157

5.5.7.1 Active cable assembly electrical characteristics for trained 6 Gbit/s overview.......................... 157

5.5.7.2 Active cable assembly output electrical characteristics for trained 6 Gbit/s.............................. 157

5.5.7.3 Active cable assembly S-parameter limits for trained 6 Gbit/s and trained 12 Gbit/s................ 158

5.5.7.4 Active cable assembly electrical characteristics overview for 12 Gbit/s.................................... 159

5.5.7.5 Active cable assembly electrical characteristics for 12 Gbit/s................................................... 160

5.6 Test loads............................................................................................................................................. 161

5.6.1 Test loads overview ........................................................................................................................ 161

5.6.2 Zero-length test load....................................................................................................................... 162

5.6.3 TCTF test load ................................................................................................................................ 163

5.6.4 Low-loss TCTF test load................................................................................................................. 168

5.6.5 Trained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s reference transmitter test load....................................... 169

5.7 End to end simulation for trained 12 Gbit/s .......................................................................................... 173

5.7.1 End to end simulation for trained 12 Gbit/s overview...................................................................... 173

5.7.2 Usage models for end to end simulation for trained 12 Gbit/s........................................................ 174

5.7.3 Reference transmitter equalization for trained 12 Gbit/s.................................................................175

5.7.4 Crosstalk measurement for end to end simulations and 12 Gbit/s jitter tolerance.......................... 177

5.8 Transmitter device and receiver device electrical characteristics......................................................... 178

5.8.1 General electrical characteristics.................................................................................................... 178

5.8.2 Transmitter device and receiver device transients.......................................................................... 179

5.8.3 Eye masks and the JTF .................................................................................................................. 180

5.8.3.1 Eye masks overview.................................................................................................................. 180

5.8.3.2 JTF ............................................................................................................................................ 180

5.8.3.3 Transmitter device eye mask for untrained 1.5 Gbit/s and 3 Gbit/s .......................................... 181

5.8.3.4 Receiver device eye mask for untrained 1.5 Gbit/s and 3 Gbit/s .............................................. 182

5.8.3.5 Receiver device jitter tolerance eye mask for untrained 1.5 Gbit/s and 3 Gbit/s....................... 182

5.8.4 Transmitter device characteristics .................................................................................................. 184

5.8.4.1 Transmitter device characteristics overview.............................................................................. 184

5.8.4.2 Transmitter device coupling requirements ................................................................................ 184

5.8.4.3 Transmitter device general electrical characteristics................................................................. 184

5.8.4.4 Transmitter device signal output characteristics for untrained 1.5 Gbit/s and 3 Gbit/s as

measured with the zero-length test load .......................................................................................... 186

5.8.4.5 Transmitter device signal output characteristics for untrained 1.5 Gbit/s and 3 Gbit/s as

measured with each test load .......................................................................................................... 187

5.8.4.6 Transmitter device signal output characteristics for trained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s.. 189

5.8.4.6.1 Transmitter device signal output characteristics for trained 1.5 Gbit/s, 3 Gbit/s, and

6 Gbit/s overview........................................................................................................................... 189

5.8.4.6.2 Trained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s transmitter device test procedure....................... 190

5.8.4.6.3 Trained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s Transmitter device S-parameter limits................ 191

5.8.4.6.4 Recommended trained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s transmitter device settings for

interoperability ............................................................................................................................... 192

5.8.4.6.5 Trained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s reference transmitter device characteristics....... 193

5.8.4.6.6 Trained 1.5 Gbit/s, 3 Gbit/s, and 6 Gbit/s Transmitter equalization, VMA, and V

P-P

measurement................................................................................................................................. 194

5.8.4.7 Transmitter device signal output characteristics for trained 12 Gbit/s....................................... 196

5.8.4.7.1 Transmitter device signal output characteristics for trained 12 Gbit/s overview .................. 196

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ISO/IEC 14776-154:2017 © ISO/IEC 2017 – 5 –

5.8.4.7.2 12 Gbit/s Transmitter device S-parameter limits.................................................................. 203

5.8.4.7.3 12 Gbit/s reference transmitter device................................................................................. 205

5.8.4.7.4 Transmitter device end to end simulation characteristics for trained 12 Gbit/s ................... 207

5.8.4.7.5 Transmitter device signal output characteristics at CTS for 12 Gbit/s when an active

cable is connected......................................................................................................................... 208

5.8.4.8 Transmitter device signal output characteristics for OOB signals............................................. 208

5.8.5 Receiver device characteristics ...................................................................................................... 210

5.8.5.1 Receiver device characteristics overview.................................................................................. 210

5.8.5.2 Receiver device coupling requirements .................................................................................... 210

5.8.5.3 Receiver device general electrical characteristics.....................................................................211

5.8.5.4 Delivered signal characteristics for untrained 1.5 Gbit/s and 3 Gbit/s....................................... 213

5.8.5.5 Maximum delivered jitter for untrained 1.5 Gbit/s and 3 Gbit/s ................................................. 214

5.8.5.6 Receiver device jitter tolerance for untrained 1.5 Gbit/s and 3 Gbit/s ....................................... 215

5.8.5.7 Receiver device and delivered signal characteristics for trained 1.5 Gbit/s, 3 Gbit/s,

6 Gbit/s, and 12 Gbit/s ..................................................................................................................... 216

5.8.5.7.1 Delivered signal characteristics for trained 1.5 Gbit/s, 3 Gbit/s, 6 Gbit/s, and 12 Gbit/s ..... 216

5.8.5.7.2 Receiver device S-parameter limits..................................................................................... 216

5.8.5.7.3 Reference receiver device characteristics........................................................................... 218

5.8.5.7.3.1 Reference receiver device overview ............................................................................. 218

5.8.5.7.3.2 Reference receiver device DFE .................................................................................... 219

5.8.5.7.3.3 Reference receiver device equalization for trained 12 Gbit/s........................................ 219

5.8.5.7.4 Reference receiver device termination characteristics for trained 1.5 Gbit/s, 3 Gbit/s,

and 6 Gbit/s ................................................................................................................................... 220

5.8.5.7.5 Reference receiver device termination characteristics for trained 12 Gbit/s........................ 220

5.8.5.7.6 Stressed receiver device jitter tolerance test.......................................................................221

5.8.5.7.6.1 Stressed receiver device jitter tolerance test overview for trained 1.5 Gbit/s,

3 Gbit/s, and 6 Gbit/s ................................................................................................................. 221

5.8.5.7.6.2 Stressed receiver device jitter tolerance test procedure for trained 1.5 Gbit/s,

3 Gbit/s, and 6 Gbit/s ................................................................................................................. 223

5.8.5.7.6.3 Test equipment calibration and ISI generator calibration for trained 1.5 Gbit/s,

3 Gbit/s, and 6 Gbit/s ................................................................................................................. 224

5.8
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