IBM IC25N020ATDA04 Hard Drive Specifications - Page 167
Security Erase Prepare F3h
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13.22 Security Erase Prepare (F3h) 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 D - - - - Command 1 1 1 1 0 0 1 1 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 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 00000V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 V - 0 -V Figure 102. Security Erase Prepare command (F3h) The Security Erase Prepare command must be issued immediately before the Security Erase Unit command to enable device erasing and unlocking. The Security Erase Prepare Command must be issued immediately before the Format Unit Command. This command is to prevent accidental erasure of the device. This command does not request to transfer data. Travelstar 48GH, 30GN & 15GN hard disk drive specifications 153