Hitachi HTS541680J9SA00 Specifications - Page 74
Device Configuration Overlay B1h
View all Hitachi HTS541680J9SA00 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 74 highlights
Travelstar 5K160 (SATA) Hard Disk Drive Specification 14.2 Device Configuration Overlay (B1h) Command Block Output Registers Register 76543210 Data -------- Feature 1 0 1 0 VVVV Sector Count -------- LBA Low -------- LBA Mid -------- LBA High -------- Device -------- Command 10110001 Command Block Input Registers Register 76543210 Data -------- Error ...See Below... Sector Count VVVVVVVV LBA Low -------- LBA Mid VVVVVVVV LBA High VVVVVVVV Device -------- Status ...See Below... Error Register Status Register 7 6 5 4 3 2 1 0 7 6543 2 10 CRC UNC 0 IDN 0 ABT T0N AM BSY RDY DF DSC DRQ COR IDX ERR N 000 0 0V0 0 VV0 - V - 0V Figure 24 Device Configuration Overlay Command (B1h) Individual Device Configuration Overlay feature set commands are identified by the value placed in the Features register. The table below shows these Features register values. Value Command C0h DEVICE CONFIGURATION RESTORE C1h DEVICE CONFIGURATION FREEZE LOCK C2h DEVICE CONFIGURATION IDENTIFY C3h DEVICE CONFIGURATION SET other Reserved Figure 25 Device Configuration Overlay Features register values 14.2.1 DEVICE CONFIGURATION RESTORE (subcommand C0h) The DEVICE CONFIGURATION RESTORE command discard any setting previously made by a DEVICE CONFIGURATION SET command and return the content of the IDENTIFY DEVICE command response to the original settings as indicated by the data returned from the execution of a DEVICE CONFIGURATION IDENTIFY command. 14.2.2 DEVICE CONFIGURATION FREEZE LOCK (subcommand C1h) The DEVICE CONFIGURATION FREEZE LOCK command prevents accidental modification of the Device Configuration Overlay settings. After successful execution of a DEVICE CONFIGURATION FREEZE LOCK command, all DEVICE CONFIGURATION SET, DEVICE CONFIGURATION FREEZE LOCK, DEVICE CONFIGURATION IDENTIFY, and DEVICE CONFIGURATION RESTORE commands are aborted by the device. The DEVICE CONFIGURATION FREEZE LOCK condition shall be cleared by a power-down. The DEVICE CONFIGURATION FREEZE LOCK condition shall not be cleared by COMRESET or software reset. 74/167