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COMMAND PROCESSING.......................................................... 1-1
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 Procedure.....................................................................................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
Generating the UNIT UNIT ATTENTION Condition.....................................................1-23
1.5.2
Response to the ATTENTION Condition Hold State
and Cancellation Conditions............................................................................................1-25
1.5.3
UNIT ATTENTION Condition Multiple Hold................................................................1-26
1.6
Sense Data Hold State ..................................................................................................... 1-27
1.6.1
Sense Data Hold Conditions............................................................................................1-27
1.6.2
Response to the Sense Data Hold State and Cancellation Conditions...............................1-28
1.7
Command Processing Exceptions................................................................................... 1-29
1.7.1
Overlapping Commands .................................................................................................. 1-29
1.7.2
Illegal LUN Specification................................................................................................1-30
1.7.3
Reserved Operation Codes...............................................................................................1-30
1.7.4
Command Processing in the Not Ready State.................................................................. 1-30
1.7.5
Error Recovery Processing...............................................................................................1-32
1.7.6
Reset Processing..............................................................................................................1-34
1.7.7
Fatal Hardware Errors ..................................................................................................... 1-36
1.8
Data Block Addressing.................................................................................................... 1-37
1.8.1
Definition of Data Space.................................................................................................. 1-37
1.8.2
Logical Block Addressing................................................................................................1-39
DATA BUFFER MANAGEMENT ............................................... 2-1
2.1
Data Buffer ...................................................................................................................... 2-1
2.1.1
Data Buffer Configuration and Basic Operation...............................................................2-1
2.1.2
Setting the Operating Mode.............................................................................................2-5
CONTENTS
C141-E039-01EN
page
xi
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