IBM DTTA-351010 Hard Drive Specifications - Page 167
Standby Immediate, E0h/94h
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12.33 Standby Immediate (E0h/94h) Command Block Output Registers Register 76543210 Data Feature Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 1D Command 11100000 Command Block Input Registers Register 76543210 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 76543210 BSY RDY DF DSC DRQ COR IDX ERR 0V0V 0 V Figure 121. Standby Immediate Command (E0h/94h) The Standby Immediate command causes the device to enter Standby mode immediately. The device is spun down but the interface remains active. If the device is already spun down, the spin down sequence is not executed. During the Standby mode, the device will respond to commands, but there is a delay while waiting for the spindle to reach operating speed. The Standby Immediate command will not affect to auto power down timeout parameter. Command Descriptions 159