IBM DTCA-24090 Hard Drive Specifications - Page 77
Register Initialization
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10.1.1 Register Initialization Register Error Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status Alternate Status Default Value Diagnostic Code 01h 01h 00h 00h E0h 50h 50h Figure 45. Default Register Values After power on, hard reset, or software reset, the register values are initialized as shown in Figure 45. Code 01h 02h 03h 04h 05h 8xh Description No error detected Formatter device error Sector buffer error ECC circuitry error Controller microprocessor error Device 1 failed Figure 46. Diagnostic Codes The meaning of the Error Register diagnostic codes resulting from power on, hard reset or the Execute Device Diagnostic command are shown in Figure 46. General Operation Descriptions 69
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10.1.1
Register Initialization
Register
Default Value
Error
Diagnostic Code
Sector Count
01h
Sector Number
01h
Cylinder Low
00h
Cylinder High
00h
Device/Head
E0h
Status
50h
Alternate Status
50h
Figure 45. Default Register Values
After power on, hard reset, or software reset, the register values are initialized as shown in Figure 45.
Code
Description
01h
No error detected
02h
Formatter device error
03h
Sector buffer error
04h
ECC circuitry error
05h
Controller microprocessor error
8xh
Device 1 failed
Figure 46. Diagnostic Codes
The meaning of the Error Register diagnostic codes resulting from power on, hard reset or the Execute
Device Diagnostic command are shown in Figure 46.
General Operation Descriptions
69