4.6 Packet Commands
4.6.17 SEND DIAGNOSTIC command
Table 4.106 SEND DIAGNOSTIC command
Bit | 7 | 6 | 5 |
| 4 |
| 3 |
| 2 | 1 | 0 |
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0 |
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| Operation Code (1Dh) |
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1 |
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| Reserved |
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| SelfTest | Reserved | Reserved |
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2 |
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| Parameter List Length |
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The SEND DIAGNOSTIC command instructs diagnostic operation from the host.
When the
Parameter List Length specifies the data length of diagnostic parameters to be transferred.
The functions and specifications of diagnostic parameters are not open.
4.6.18 SEEK command
Table 4.107 SEEK command
Bit | 7 | 6 | 5 |
| 4 |
| 3 |
| 2 | 1 | 0 |
Byte |
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0 |
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| Operation Code (2Bh) |
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1 |
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| Logical Block Address |
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The SEEK command positions the head on the track at the specified logical block address.
Logical Block Address specifies the logical block address at which the head is positioned.