Hitachi IC25N040ATCS04-0 Specifications - Page 161
Security Disable Password F6h
UPC - 683728198664
View all Hitachi IC25N040ATCS04-0 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 161 highlights
13.20 Security Disable Password (F6h) 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 1 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 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 105. Security Disable Password command (F6h) The Security Disable Password command disables the security mode feature (device lock function). The Security Disable Password command requests a transfer of a single sector of data from the host including information specified in Figure 106. The device then checks the transferred password. If the User Password or Master Password matches the given password, the device disables the security mode feature (device lock function). This command does not change the Master Password which may be reactivated later by setting User Password. This command should be executed in device unlock mode. Word 00 01-16 17-255 Description Control word bit 0 : Identifier (1-Master, 0-User) bits 1-15 : Reserved Password (32 bytes) Reserved Figure 106. Password Information for Security Disable Password command The device will compare the password sent from this host with that specified in the control word. Identifier Zero indicates that the device should check the supplied password against the user password stored internally. One indicates that the device should check the given password against the master password stored internally. Hitachi Travelstar 60GH & 40GN hard disk drive specifications 148