Hitachi IC25N040ATCS04-0 Specifications - Page 165

13.23 Security Freeze Lock (F5h) 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 1 0 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 - - 0 -V Figure 110. Security Freeze Lock command (F5h) The Security Freeze Lock Command allows the device to enter frozen mode immediately. After this command is completed, the command which updates Security Mode Feature (Device Lock Function) is rejected. Frozen mode is quit only by a Power off. The following commands are rejected when the device is in frozen mode. Refer to Figure 65 on page 90. ! Security Set Password ! Security Unlock ! Security Disable Password ! Security Erase Unit Hitachi Travelstar 60GH & 40GN hard disk drive specifications 152