Sony CDU-541 - TEST UNIT READY Command

CDU-541 CD-ROM DRIVE SCSI INTERFACE MANUAL
5.2.34. TEST UNIT READY Command
==============================================================================
Bit:
7
6
5
4
3
2 1
o
Byte i
==============================================================================
o I Operation Code (OOh) :
-----1-----------------------------------------------------------------------1
1 : Logical Unit Number: Reserved :
-----i-----------------------------------------------------------------------:
2 i Reserved :
-----i-----------------------------------------------------------------------:
3 : Reserved i
-----1-----------------------------------------------------------------------:
4 I Reserved :
-----1-----------------------------------------------------------------------1
5
1 Control Byte i
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The TEST UNIT READY command provides a means to check if the logical unit is
in the ready condition. This is not a request for a self test.
If the ready condition does not exist a CHECK CONDITION status will be
returned and the appropriate additional sense code set.
5-61