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Chapter 3 Media Changer Commands
Send Diagnostic Command (1Dh)
166 Quantum ATL SuperLoader Software Interface Guide
Send Diagnostic Command (1Dh) 3
The SEND DIAGNOSTIC command directs the media changer to
perform its self-diagnostic tests.
Figure 86 Send
Diagnostic Descriptor
Table 68 Send
Diagnostic Command
Data
Bit
Byte76543 210
0
Operation Code (1Dh)
1
Logical Unit Number PF (0) Reserved Selftst DevOfl UnitOfl
2
Reserved
3 - 4
(MSB)
Parameter List Length
(LSB)
5
Unused Reserved Flag Link
Field Description
PF Page Format. Not supported; must be 0.
Selftst Self Test. A Selftst bit of 1 directs the media changer to
perform its default self test. A Selftst bit of 0 is not
supported.
DevOfl Device Offline. This bit is used in conjunction with
Selftst and UnitOfl to specify the type of testing to be
done. This bit must be set to 0.
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