Fujitsu MAN3735 Manuale Utente

C141-E124-01EN

ix

page

1.1

Command Format ......................................................................................................... 1-1

1.2

Status Byte .................................................................................................................... 1-7

1.3

Outline of Command Processing................................................................................... 1-10

1.3.1

Single commands .......................................................................................................... 1-10

1.3.2

Command link............................................................................................................... 1-11

1.3.3

Disconnect/reconnect processing .................................................................................. 1-13

1.3.4

Synchronous mode data transfer/wide mode data transfer ............................................ 1-17

1.4

Command Queuing Function ........................................................................................ 1-19

1.4.1

Untagged queuing ......................................................................................................... 1-19

1.4.2

Tagged queuing............................................................................................................. 1-21

1.5

UNIT ATTENTION Condition .................................................................................... 1-23

1.5.1

Generation of the UNIT ATTENTION condition ........................................................ 1-23

1.5.2

Response and Release Condition at UNIT ATTENTION Condition Hold State.......... 1-24

1.5.3

UNIT ATTENTION condition multiple hold ............................................................... 1-25

1.6

Sense Data Hold State................................................................................................... 1-26

1.6.1

Sense data hold condition ............................................................................................. 1-26

1.6.2

Response and release conditions at sense data hold state ............................................. 1-27

1.7

Command Processing Exceptions ................................................................................. 1-28

1.7.1

Overlapping commands ................................................................................................ 1-28

1.7.2

Illegal LUN specification.............................................................................................. 1-29

1.7.3

Reserved operation code............................................................................................... 1-29

1.7.4

Command processing in the not ready state .................................................................. 1-29

1.7.5

Error recovery processing ............................................................................................. 1-31

1.7.6

Reset processing ........................................................................................................... 1-33

1.7.7

Fatal hardware errors .................................................................................................... 1-35

1.8

Data Block Addressing ................................................................................................. 1-36

1.8.1

Definition of data space ................................................................................................ 1-36

1.8.2

Logical block addressing .............................................................................................. 1-38

2.1

Data Buffer ................................................................................................................... 2-1

2.1.1

Data buffer configuration and basic operation .............................................................. 2-1