IBM DJSA-210 Hard Drive Specifications - Page 123
Execute Device Diagnostic 90h
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13.3 Execute Device Diagnostic (90h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 - 1 - - - - - Command 1 0 0 1 0 0 0 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status see below Error Register 7 6 5 4 3 210 CRC UNC 0 IDN 0 ABT T0N AMN 0 V V V V VVV Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 - - 0 -0 Figure 73. 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. See Figure 56 on page 73 for the definition. Travelstar 32GH/30GT/20GN hard disk drive specifications 109