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Table
Data Field | Description | |
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| |
Mode Data Length | Length of the returned data. | |
Medium Type | Always zero (0). | |
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| |
Device Specific | Bit 7 - This bit is set if the drive is write protected. | |
Bit 4 - This bit is always set to indicate that the drive supports cache | ||
Parameter | ||
memory. | ||
| ||
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| |
Block Descriptor Length | The value = 0 if no Block Descriptor is supplied; the length is 8 if a block descriptor is | |
supplied. | ||
| ||
Density Code | Ignored by the drive. | |
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| |
| The value in this field specifies the number of logical blocks on the unit that are affected | |
| by the current MODE SELECT command. When this field = 0, the MODE SELECT | |
Number of Blocks | parameters are put into effect for all logical blocks on the unit. The maximum value al- | |
lowed is the total number of | ||
| ||
| in the Block Length field. A value that is less than the maximum value will decrease the | |
| number of | |
Block Length | The value in this field specifies the length, in bytes, of each logical block. | |
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