Fujitsu MHN2150AT Manual/User Guide - Page 101

Fujitsu MHN2150AT - Mobile 15 GB Hard Drive Manual

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5.3 Host Commands At command issuance (I/O registers setting contents) 1F7 (CM) H 1F6H(DH) 1F5 (CH) H 1F4 (CL) H 1F3H(SN) 1F2H(SC) 1F1H(FR) 11000101 x L x DV Start head No. / LBA [MSB] Start cylinder No. [MSB] / LBA Start cylinder No. [LSB] / LBA Start sector No. / LBA [LSB] Transfer sector count xx At command completion (I/O registers contents to be read) 1F7 (ST) H 1F6H(DH) 1F5H(CH) 1F4H(CL) 1F3H(SN) 1F2 (SC) H 1F1 (ER) H Status information x L x DV End head No. / LBA [MSB] End cylinder No. [MSB] / LBA End cylinder No. [LSB] / LBA End sector No. / LBA [LSB] 00 Error information (7) WRITE DMA (X'CA' or X'CB') This command operates similarly to the WRITE SECTOR(S) command except for following events. • The data transfer starts at the timing of DMARQ signal assertion. • The device controls the assertion or negation timing of the DMARQ signal. • The device posts a status as the result of command execution only once at completion of the data transfer or completion of processing in the device. • The device posts a status as the result of command execution only once at completion of the data transfer. When an error, such as an unrecoverable medium error, that the command execution cannot be continued is detected, the data transfer is stopped without transferring data of sectors after the erred sector. The device generates an interrupt using the INTRQ signal and posts a status to the host system. The format of the error information is the same as the WRITE SECTOR(S) command. C141-E120-02EN 5-25

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5.3
Host Commands
C141-E120-02EN
5-25
At command issuance (I/O registers setting contents)
1F7
H
(CM)
1
1
0
0
0
1
0
1
1F6
H
(DH)
x
L
x
DV
Start head No. / LBA
[MSB]
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(FR)
Start cylinder No. [MSB] / LBA
Start cylinder No. [LSB] / LBA
Start sector No. / LBA [LSB]
Transfer sector count
xx
At command completion (I/O registers contents to be read)
1F7
H
(ST)
Status information
1F6
H
(DH)
x
L
x
DV
End head No. / LBA [MSB]
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(ER)
End cylinder No. [MSB] / LBA
End cylinder No. [LSB] / LBA
End sector No. / LBA [LSB]
00
Error information
(7)
WRITE DMA (X’CA’ or X’CB’)
This command operates similarly to the WRITE SECTOR(S) command except
for following events.
•
The data transfer starts at the timing of DMARQ signal assertion.
•
The device controls the assertion or negation timing of the DMARQ signal.
•
The device posts a status as the result of command execution only once at
completion of the data transfer or completion of processing in the device.
•
The device posts a status as the result of command execution only once at
completion of the data transfer.
When an error, such as an unrecoverable medium error, that the command
execution cannot be continued is detected, the data transfer is stopped without
transferring data of sectors after the erred sector.
The device generates an
interrupt using the INTRQ signal and posts a status to the host system.
The
format of the error information is the same as the WRITE SECTOR(S) command.