Hitachi HDS728080PLAT20 Specifications - Page 147
Idle E3h/97h
UPC - 829686000094
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12.11 Idle (E3h/97h) Table 93: Idle command (E3h/97h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count V V V V V V V V Sector Number Cylinder Low Cylinder High Device/Head 1 - 1 D - - - - Command 1 1 1 0 0 0 1 1 76 CRC UNC 00 Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 00 0 V 0 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 Status Register 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 V0V - 0 - V The Idle command causes the device to enter Idle mode immediately and to set the auto power down time-out parameter (standby timer). And the timer then starts counting down. When the Idle mode is entered, the device is spun up to operating speed. If the device is already spinning, the spin up sequence is not executed. During Idle mode the device is spinning and is ready to respond to host commands immediately. Output parameters to the device Sector Count Time-out Parameter. If it is zero, the automatic power down sequence is disabled. If it is nonzero, the automatic power down sequence is enabled. The time-out interval is shown below: Value Time-out 0 Timer disabled 1-240 Value x 5 241-251 (Value-240) x 30 minutes 252 21 minutes 253 8 hours 254 21 minutes 10 seconds 255 21 minutes 15 seconds When the automatic power down sequence is enabled, the drive will enter Standby mode automatically if the time-out interval expires with no drive access from the host. The time-out interval will be reinitialized if there is a drive access before the time-out interval expires Deskstar 7K80 Hard Disk Drive Specification 143