IBM IC35L036UWDY10 Hard Drive Specifications - Page 178
START STOP Unit 1Bh, Reserved = 0, VU = 0, Start, Reserved, Power Conditions = 0, Immed
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8.36 START STOP Unit (1Bh) Byte 0 1 Bit 7 6 5 4 3 2 Command Code = 1Bh Reserved = 0 Reserved = 0 1 0 Immed 2 3 Reserved = 0 4 Power Conditions = 0 Reserved =0 LoEj =0 Start 5 VU = 0 Reserved = 0 FLAG LINK Figure 165. START STOP Unit The START STOP UNIT command is used to spin up or stop the spindle motor. ! Immed bit is to specify 0 status is to be returned at the end of the operation 1 GOOD status shall always be returned immediately after command has been received. The TEST UNIT READY command may be used to determine when the drive becomes ready after a spin-up. ! Power Conditions is not supported by the drive and must be set to 0. ! LoEj is not supported by the drive and must be set to 0. ! Start bit is to specify: 0 stop the spindle 1 start the spindle Note: When the drive has become ready (after a power on), the START STOP UNIT command can be used without any errors regardless of whether the motor is stopped or spinning. Ultrastar 146Z10 hard disk drive specifications 162
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