5.3 Host Commands

(4) WRITE VERIFY (X’3C’)

This command operates similarly to the WRITE SECTOR(S) command except that the device verifies each sector immediately after being written. The verify operation is a read and check for data errors without data transfer. Any error that is detected during the verify operation is posted.

After all sectors are verified, the last interruption (INTRQ for command termination) is generated.

At command issuance (I/O registers setting contents)

1F7H(CM)

0

0

1

1

1

1

0

0

 

 

 

 

 

 

 

1F6H(DH)

x

L

x

DV

Start head No. / LBA

 

 

 

 

 

 

[MSB]

 

 

 

 

 

 

 

 

 

 

 

 

1F5H(CH)

Start cylinder No. [MSB] / LBA

 

 

 

1F4H(CL)

Start cylinder No. [LSB] / LBA

 

 

 

1F3H(SN)

Start sector No. / LBA [LSB]

 

 

 

1F2H(SC)

Transfer sector count

 

 

 

 

1F1H(FR)

xx

 

 

 

 

 

 

 

At command completion (I/O registers contents to be read)

1F7H(ST)

Status information

 

 

 

 

 

 

 

 

 

1F6H(DH)

x

 

L

x

DV

End head No. / LBA [MSB]

1F5H(CH)

End cylinder No. [MSB] / LBA

1F4H(CL)

End cylinder No. [LSB] / LBA

1F3H(SN)

End sector No. / LBA [LSB]

1F2H(SC)

00 (*1)

 

 

 

 

1F1H(ER)

Error information

 

 

*1 If the command is terminated due to an error, the remaining number of sectors of which data was not transferred is set in this register.

C141-E217

5-25

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Fujitsu MHV2060AH, MHV2100AH, MHV2080AH, MHV2040AH manual Write Verify X’3C’, Msb
Page 100 Page 102

MHV2040AH, MHV2080AH, MHV2060AH, MHV2100AH specifications

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