Contents

CHAPTER 1

SAS Interface

21

 

1.1 Topologies in SAS Interface

22

 

1.1.1

 

SAS Layering

23

 

1.1.2

 

Physical links and phys

24

 

1.1.3

 

Ports (narrow ports and wide ports)

24

 

1.1.4

 

SAS devices

26

 

1.1.5

 

Pathways

27

 

1.1.6

 

Connections

28

 

1.2

Names and identifiers

29

 

1.2.1

 

SAS addresses

29

 

1.2.2

 

Hashed SAS address

30

 

1.3

Phy layer

31

 

1.3.1

 

8b10b coding

31

 

1.3.2

 

Link reset sequence

32

 

1.3.3

 

Start conditions of the link reset sequence

33

 

1.3.4

 

Out of band (OOB) signals

33

 

1.3.5

 

SAS OOB sequency

36

 

1.3.5.1

Exception handling in the OOB sequence

38

 

1.3.6

 

SAS speed negotiation sequence

38

 

1.3.6.1

Phy reset sequence after devices are attached

42

 

1.3.6.2

When the speed negotiation sequence is successful

43

 

1.3.6.3

Exception handling in the speed negotiation sequence

43

 

1.3.7

 

Phy layer dword synchronization (DWS)

43

 

1.4

Link layer

44

 

1.4.1

 

Primitives

44

 

1.4.2

 

Primitive sequences

47

 

1.4.3

 

Primitives not specific to type of connections

47

 

1.4.3.1

AIP (Arbitration in progress)

47

 

1.4.3.2

ALIGN

47

C141-C013

7

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Fujitsu MBC2073RC, MBC2036RC, MBA3300RC, MBA3147RC, MBA3073RC specifications Contents