Fujitsu MHA2021AT Product Manual page 84

1F7
1F6
1F5
1F4
1F3
1F2
1F1
R = 0
R = 1
1F7
1F6
1F5
1F4
1F3
1F2
1F1
*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.
(5) WRITE SECTOR(S) (X'30' or X'31')
This command writes data of sectors from the address specified in the
Device/Head, Cylinder High, Cylinder Low, and Sector Number registers to the
address specified in the Sector Count register. Number of sectors can be specified
to 256 sectors in maximum. Data transfer begins at the sector specified in the
Sector Number register. For the DRQ, INTRQ, and BSY protocols related to data
transfer, see Subsection 5.4.2.
If the head is not on the track specified by the host, the device performs a implied
seek. After the head reaches to the the specified track, the device writes the target
sector.
If the command is specified with retry, the device attempts to retry up to 31 times.
C141-E042-01EN
At command issuance (I/O registers setting contents)
(CM) 0 1
H
(DH) L
H
(CH) Start cylinder No. [MSB] / LBA
H
(CL) Start cylinder No. [LSB] / LBA
H
(SN) Start sector No. / LBA [LSB]
H
(SC) Transfer sector count
H
(FR) xx
H
with Retry
without Retry
At command completion (I/O registers contents to be read)
(ST) Status information
H
(DH) L
H
(CH) End cylinder No. [MSB] / LBA
H
(CL) End cylinder No. [LSB] / LBA
H
(SN) End sector No. / LBA [LSB]
H
(SC) 00 (*1)
H
(ER) Error information
H
0 0 0 0
DV Start head No. /LBA
[MSB]
DV End head No. /LBA
[MSB]
5.3 Host Commands
0 R
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