5.3 Host Commands
C141-E070-01EN
5-27
A host system can select the following transfer mode using the SET FEATURES
command.
1)
Single word DMA transfer mode 0 to 2
2)
Multiword DMA transfer mode 0 to 2
3)
Ultra DMA transfer mode 0 to 2
At command issuance (I/O registers setting contents)
1F7
H
(CM)
1
1
0
0
1
0
1
R
1F6
H
(DH)
×
L
×
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
R = 0
→
with Retry
R = 1
→
without Retry
At command completion (I/O registers contents to be read)
1F7
H
(ST)
Status information
1F6
H
(DH)
×
L
×
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 (*1)
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.
(8) 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.
Summary of Contents for MHG2102AT - Mobile 10 GB Hard Drive
Page 1: ...C141 E070 02EN MHG2102AT MHH2064AT MHH2048AT MHH2032AT DISK DRIVES PRODUCT MANUAL ...
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Page 40: ...3 1 Dimensions C141 E070 01EN 3 3 Figure 3 1 Dimensions MHH series 2 2 ...
Page 51: ...Installation Conditions 3 14 C141 E070 02EN Figure 3 15 Example 2 of Cable Select ...
Page 56: ...4 3 Circuit Configuration C141 E070 01EN 4 5 Figure 4 2 Circuit Configuration 16 bit ...
Page 62: ...4 6 Read write Circuit C141 E070 01EN 4 11 Figure 4 4 Read write circuit block diagram ...
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Page 169: ...Interface 5 96 C141 E070 01EN Figure 5 10 Data transfer timing ...
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