Table 121 Read Verify Sector(S) Command (40H/41H); Read Verify Sector(S) (40H/41H) - Hitachi HDS723020BLA642 Specifications
3.5 inch serial ata hard disk drive
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Also See for HDS723020BLA642:
- Datasheet (2 pages) ,
- Quick installation manual (3 pages) ,
- Quick installation manual (3 pages)
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11.27 Read Verify Sector(s) (40h/41h)
Command Block Output Registers
Register
Data
Feature
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
Error Register
7
6
5
CRC UNC
0
0
V
0
Table 121 Read Verify Sector(s) Command (40h/41h)
The Read Verify Sector(s) verifies one or more sectors on the device. No data is transferred to the host.
The difference between Read Sector(s) command and Read Verify Sector(s) command is whether the data is
transferred to the host or not.
If an uncorrectable error occurs, the read verify will be terminated at the failing sector.
7
6
5
4
3
2
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
1
L
1
D
H
H
H
0
0
1
0
0
0
0
4
3
2
1
IDN
0
ABT T0N AMN
V
0
V
0
Hitachi hard disk drive specifications
Command Block Input Registers
0
Register
7
-
Data
-
Error
V
Sector Count
V
V
Sector Number
V
V
Cylinder Low
V
V
Cylinder High
V
H
Device/Head
R
Status
Status Register
0
7
6
5
BSY RDY
DF
0
0
V
0
177
6
5
4
3
2
1
-
-
-
-
-
-
-
...See Below...
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
-
-
-
-
H
H
H
...See Below...
4
3
2
1
DSC DRQ COR IDX
V
-
0
-
0
-
V
V
V
V
H
0
ERR
V
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- Table 1 Type and Model
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- Data Sheet
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