HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
128
10.6
Execute Device Diagnostic (90h)
Command Block Output Registers
Command Block Input Registers
Register
7
6
5
4
3
2
1
0
Register
7
6
5
4
3
2
1
0
Data
-
-
-
-
-
-
-
-
Data
-
-
-
-
-
-
-
-
Feature
-
-
-
-
-
-
-
-
Error
...See Below...
Sector Count
-
-
-
-
-
-
-
-
Sector Count
-
-
-
-
-
-
-
-
Sector Number
-
-
-
-
-
-
-
-
Sector Number
-
-
-
-
-
-
-
-
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder High
-
-
-
-
-
-
-
-
Cylinder High
-
-
-
-
-
-
-
-
Device/Head
1
-
1
-
-
-
-
-
Device/Head
-
-
-
-
-
-
-
-
Command
1
0
0
1
0
0
0
0
Status
...See Below...
Error Register
Status Register
7
6
5
4
3
2
1
0
BSY RDY
DF
DSC DRQ
COR
IDX
ERR
Diagnostic Code
0
V
0
-
-
0
-
0
Table 89 Execute Device Diagnostic Command (90h)
The Execute Device Diagnostic command performs the internal diagnostic tests implemented by the device. The
results of the test are stored in the Error Register.
The normal Error Register bit definitions do not apply to this command. Instead, the register contains a
diagnostic code, refer to Error Register Diagnostic codes in Table 48 on page 65 for its definition.
Summary of Contents for 3.5-INCH Deskstar HDP725050GLAT80
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