Specifications

8.34 SEND DIAGNOSTIC (1Dh)

LINKFLAGReserved = 0VU=05

(MSB) Parameter List Length

(LSB)

Reserved = 02

Unt0flDev0flSlfTstRSVD=0PFFunction Code1

Command Code = 1Dh0

01234567

Bit

Byte

Figure 157. SEND DIAGNOSTIC

The SEND DIAGNOSTIC command requests the drive to perform its self-diagnostic test or to perform a

function based on a page of information sent in a Data Out phase during the command.

! PF (Page Format) bit set to one indicates the data sent by the Initiator conforms to the page structure

as specified in SCSI-2 standard. This bit must be set to one if the SlfTst bit is set to zero. This bit is

ignored by the drive if the SlfTst bit is set.

! SlfTst set to one indicates that the device performs its internal self test. If SlfTst is one, Function

code field is ignored. If SlfTst is set to zero, the content of Function code is specified in Function code

field values.

Ultrastar 146Z10 hard disk drive specifications

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