Hitachi HTS543232L9A300 Specifications - Page 132

5K320 SATA OEM Specification 14.31 Security Set Password (F1h) Command Block Output Registers Register 76543210 Data -------- Feature -------- Sector Count -------- LBA Low -------- LBA Mid -------- LBA High -------- Device -------- Command 11110001 Command Block Input Registers Register 76543210 Data -------- Error ...See Below... Sector Count -------- LBA Low -------- LBA Mid -------- LBA High -------- Device -------- Status ...See Below... Error Register 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AM N 000 0 0V0 0 Table 99 Security Set Password Command (F1h) Status Register 7 6 5 4 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0V0 - - 0 0V The Security Set Password command enables security mode feature (device lock function), and sets the master password or the user password. The security mode feature (device lock function) is enabled by this command, and the device is not locked immediately. The device is locked after next COMRESET with Software Setting Preservation disabled or power on reset. When the MASTER password is set by this command, the master password is registered internally, but the device is NOT locked after next power on reset. This command requests a transfer of a single sector of data from the host including the information specified in the following table. The data transferred controls the function of this command. Word 00 Description Control word bit 0 : Identifier (1-Mater, 0-User) 01-16 17-18 bit 1-7 : Reserved bit 8 : Security level (1-Maximum, 0-High) bit 1-15 : Reserved Password (32 bytes) Master Password Revision Code 19-255 (valid if Word 0 bit 0 = 1) Reserved Table 100 Security Set Password Information 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. 132