Hitachi HTS541010G9AT00 Specifications - Page 64
Register initialization, Diagnostic and Reset considerations
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10.2 Register initialization After a power on, COMRESET, or a software reset, the register values are initialized as shown in the table below. Table 30: Default Register Values Register Error Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status Alternate Status Default Value Diagnostic Code 01h 01h 00h 00h A0h 50h 50h The meaning of the Error Register diagnostic codes resulting from power on, COMRESET or the Execute Device Diagnostic command are shown in the following table. Table 31: Diagnostic codes 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 The meaning of the Error Register diagnostic codes resulting from power on, hard reset or the Execute Device Diagnostic command is shown in Table 38. 10.3 Diagnostic and Reset considerations The Set Max, the Set Max security mode and the Set Max unlock counter don't retain over a Power On Reset but persist over a COMRESET or Soft Reset. For each Reset and Execute Device Diagnostic, the Diagnostic is done as follows: Execute Device Diagnostic In all the above cases: Power on, COMRESET, Soft reset, and the EXECUTE DEVICE DIAGNOSTIC command the Error register is shown in the following table. Device 0 Passed Error Register Yes 01h No Oxh Where X indicates the appropriate Diagnostic Code for the Power on, COMRESET, Soft reset, or Device Diagnostic error. Travelstar 5K100 (Serial ATA) Hard Disk Drive Specification 52