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4.3 SCSI Commands
C156-E224-01EN
4-31
4.3.10 PREVENT/ALLOW MEDIUM REMOVAL command
Table 4.48 PREVENT/ALLOW MEDIUM REMOVAL command
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (1Eh)
1
LUN
Reserved
2-3
Reserved
4
Reserved
Prevent
5
Reserved
The PREVENT/ALLOW MEDIUM REMOVAL command enables or disables
media ejection from the device.
If the Prevent bit is 0, ejection is enabled. If the Prevent bit is 1, ejection is
disabled.
At power-on, media ejection is enabled by default.
When unwritten data remains in the write cache, media ejection is enabled after
the data is written to the media.
SCSI Reset or Bus Device Reset releases the disabled state and enables ejection.
Table 4.49 Responses to Prevent, Allow, and Eject
Operation
Status at
operation
If no media is loaded
If media is loaded
Enabled
No error
No error
Prevent = 0
Disabled
No error
No error
Enabled
No error
No error.
Media ejection is
disabled.
Prevent = 1
Disabled
No error
No error
Enabled
No error
No error.
The cartridge is
ejected.
Eject
(Ejection by
START/STOP UNIT
command)
Disabled
Error:
SENSE KEY 5
ASC/ASCQ 5302
Error:
SENSE KEY 5
ASC/ASCQ 5302
Enabled
No status change
The cartridge is ejected.
Eject
(Ejection by the eject
switch)
Disabled
No status change
No status change; media
ejection remains disabled.
Summary of Contents for MCJ3230SS
Page 1: ...C156 E224 01EN MCJ3230SS OPTICAL DISK DRIVE PRODUCT MANUAL ...
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Page 19: ...C156 E224 01EN xv Figure 6 1 Revision label 6 4 Figure 6 2 Revision number indication 6 4 ...
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Page 46: ...Specifications 2 12 C156 E224 01EN Figure 2 3 Example of alternate processing ...
Page 52: ...Installation Requirements 3 6 C156 E224 01EN Unit mm Figure 3 3 Dimensions without panel ...
Page 59: ...3 4 Cable Connections C156 E224 01EN 3 13 PC board Figure 3 11 Shape of setting terminal ...
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Page 124: ...Host Interface 4 50 C156 E224 01EN Figure 4 5 ARBITRATION phase ...
Page 125: ...4 5 Timing Rule C156 E224 01EN 4 51 µ Figure 4 6 SELECTION phase Figure 4 7 RESELECTION phase ...
Page 126: ...Host Interface 4 52 C156 E224 01EN Figure 4 8 Transfer in asynchronous mode ...
Page 127: ...4 5 Timing Rule C156 E224 01EN 4 53 Figure 4 9 Transfer in FAST SCSI mode ...
Page 128: ...Host Interface 4 54 C156 E224 01EN Figure 4 10 ATTENTION condition ...
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