Table 89 Execute Device Diagnostic Command (90H); Execute Device Diagnostic (90H) - Hitachi CinemaStar P7K500 Specifications

10.6 Execute Device Diagnostic (90h)

Command Block Output Registers
Register
Data
Feature
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
Error Register
Diagnostic Code

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.
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 - - - - -
1 0 0 1 0 0 0 0
Command Block Input Registers
Register 7 6
Data - -
Error
Sector Count - -
Sector Number - -
Cylinder Low - -
Cylinder High - -
Device/Head - -
Status
Status Register
7 6 5 4
BSY RDY DF DSC DRQ COR IDX ERR
0 V 0 -
128
5 4 3 2 1 0
- - - - - -
...See Below...
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
...See Below...
3 2 1 0
- 0 - 0