Hitachi 7K250 Specifications - Page 144
NOP 00h
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UPC - 000004558972
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12.12 NOP (00h) Table 72: NOP Command (00h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature V V V V V V V V Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 - 1 D - - - - Command 0 0 0 0 0 0 0 0 76 CRC UNC 00 Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 00 0 V 0 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count Initial value Sector Number Initial value Cylinder Low Initial value Cylinder High Initial value Device/Head Initial value Status see below Status Register 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 00- - 0 - V This command always fails with an error. The device responds with command aborted. Output parameters to the device Feature Subcommand code 001H Abort any outstanding queue 01H-FFH Do not abort any outstanding queue The value of Sector Count, Sector Number, Cylinder High/Low, Device/Head set by host is not changed. Deskstar 7K250 Hard Disk Drive Specification 130
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