![](/images/backgrounds/146247/146247-253212x1.png)
Table
Bit | 7 | 6 | 5 |
| 4 |
| 3 | 2 | 1 | 0 |
Byte |
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0 |
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| Operation Code (41h) |
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1 |
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| Reserved |
| PBdata | LBdta | RelAdr | |||
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| Logical Block Address |
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6 |
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| Reserved |
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| Number of Blocks |
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9 |
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| Control |
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Table
Field | Description | |
PBdata | Physical Block Data - Not supported. This feild must be | |
zero. | ||
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| Logical Block Data - A value of 1 requests that the drive | |
LBdata | replace the first four bytes of the data to be written to the | |
current logical sector with the logical sector address of the | ||
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| sector currently being written. | |
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RelAdr | Relative Address. - Not supported. This feild must be | |
zero | ||
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Logical Block Address | The address of the first logical sector where the Write op- | |
eration will occur. | ||
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| This feild contains the number of contiguous logical | |
Number of Blocks | blocks that are to be written. A value of 0 requests that all | |
the remaining logical blocks on the medium are to be | ||
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| written. | |
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The WRTIE SKIP MASK command allows the initiator to condition the function of the WRITE commands to allow only selected data to be transferred over the SCSI interface. A WRITE SKIP MASK command precedes a WRITE (10) command; the WRITE (10) command must be linked to the WRITE SKIP MASK command or the skip mask is lost and a CHECK CONDITION status is returned.
Table
Bit | 7 | 6 | 5 | 4 |
| 3 | 2 | 1 | 0 |
Byte |
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0 |
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| Operation Code (EAh) |
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1 |
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| Reserved |
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2 - 5 (MSB)
Logical Block Address
(LSB)
6 | Skip Mask Length |
7 - 8 (MSB)
Transfer Length
(LSB)
9 | VU | Reserved | Flag | Link |
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