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17 send diagnostic command, 18 seek command – FUJITSU MCJ3230AP User Manual

Page 143

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4.6 Packet Commands

C156-E205-01EN

4-71

4.6.17 SEND DIAGNOSTIC command

Table 4.106 SEND DIAGNOSTIC command

Bit

Byte

7

6

5

4

3

2

1

0

0

Operation Code (1Dh)

1

Reserved

SelfTest

Reserved

Reserved

2

Reserved

3-4

Parameter List Length

5-11

Reserved

The SEND DIAGNOSTIC command instructs diagnostic operation from the host.

When the Self-Test bit is 1, the command executes diagnostics on the data buffer.
If an error occurs, the device responds with Check Condition.

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

Byte

7

6

5

4

3

2

1

0

0

Operation Code (2Bh)

1

Reserved

2-5

Logical Block Address

6-11

Reserved

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.