9.2 Register initialization
After power on, hard reset, or software reset, the register values are initialized as shown in the figure
below.
50h
Alternate Status
50h
Status
A0h
Device/Head
00h
Cylinder High
00h
Cylinder Low
01h
Sector Number
01h
Sector Count
Diagnostic Code
Error
Default Value
Register
Figure 76. Default Register Values
The meaning of the Error Register diagnostic codes resulting from power on, hard reset, or the Execute
Device Diagnostic command are shown in the figure below.
Device 1 failed
8xh
Controller microprocessor error
05h
ECC circuitry error
04h
Sector buffer error
03h
Formatter device error
02h
No error detected
01h
Description
Code
Figure 77. Diagnostic Codes
Deskstar 120GXP hard disk drive specifications
74
Содержание Deskstar 120 GXP
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