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(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)
1F7
(CM)
H
1F6
(DH)
H
1F5
(CH)
H
1F4
(CL)
H
1F3
(SN)
H
1F2
(SC)
H
1F1
(FR)
H
At command completion (I/O registers contents to be read)
1F7
(ST)
H
1F6
(DH)
H
1F5
(CH)
H
1F4
(CL)
H
1F3
(SN)
H
1F2
(SC)
H
1F1
(ER)
H
*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-E250
0
0
1
1
x
L
x
DV
Start cylinder No. [MSB] / LBA
Start cylinder No. [LSB] / LBA
Start sector No. / LBA [LSB]
Transfer sector count
xx
Status information
x
L
x
DV
End cylinder No. [MSB] / LBA
End cylinder No. [LSB] / LBA
End sector No. / LBA [LSB]
00 (*1)
Error information
5.3 Host Commands
1
1
0
0
Start head No. / LBA
[MSB]
End head No. / LBA [MSB]
5-25
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