Table of Contents
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CHAPTER 1 Command Processing........................................................................................................1-1
1.1
Command Format ..........................................................................................................................1-1
1.2
Status Byte .....................................................................................................................................1-6
1.3
Outline of Command Processing ...................................................................................................1-8
1.3.1
Single commands....................................................................................................................1-8
1.3.2
Command link ........................................................................................................................1-9
1.3.3
Disconnect/reconnect processing..........................................................................................1-11
1.3.4
Synchronous mode data transfer/wide mode data transfer ...................................................1-15
1.4
Command Queuing Function.......................................................................................................1-16
1.4.1
Untagged queuing.................................................................................................................1-16
1.4.2
Tagged queuing ....................................................................................................................1-18
1.5
UNIT ATTENTION Condition ...................................................................................................1-19
1.5.1
Generation of the UNIT ATTENTION condition ................................................................1-19
1.5.2
state.......................................................................................................................................1-20
1.5.3
UNIT ATTENTION condition multiple hold.......................................................................1-22
1.6
Sense Data Hold State..................................................................................................................1-22
1.6.1
Sense data hold condition .....................................................................................................1-22
1.6.2
Response and release conditions at sense data hold state .....................................................1-22
1.7
Command Processing Exceptions................................................................................................1-23
1.7.1
Overlapping commands ........................................................................................................1-23
1.7.2
Illegal LUN specification......................................................................................................1-24
1.7.3
Reserved operation code.......................................................................................................1-24
1.7.4
Command processing in the not ready state .........................................................................1-24
1.7.5
Error recovery processing.....................................................................................................1-26
1.7.6
Reset processing ...................................................................................................................1-27
1.7.7
Fatal hardware errors ............................................................................................................1-29
1.8
Data Block Addressing ................................................................................................................1-29
1.8.1
Definition of data space ........................................................................................................1-29
1.8.2
Logical block addressing ......................................................................................................1-32
C141-E167
Contents
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